Search

Copyright of Journal of Agriculture & Nature / Kahramanmaraş Sütçü İmam Üniversitesi Tarım & Doğa Dergisi is the property of Kahramanmaras Sutcu Imam Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this article, a new cornflower, Centaurea turhanii Uysal & Hamzaoğlu (Asteraceae) from Türkiye was described and reported. Morphological, karyological, and molecular analyses were used to reveal the taxonomic status of the new species with the species thought to be related to taxa. A modified determination key was submitted and its ecology and phenology were given. [ABSTRACT FROM AUTHOR]

In this study, the anatomical, palynological, and seed micromorphological traits of two Verbascum varieties found in the Southeastern Anatolia Region were investigated. These variations are V. sinuatum subsp. sinuatum var. adenosepalum Murb. and V. sinuatum subsp. sinuatum var. sinuatum L. Crosssections from the taxa's roots, stems, and leaves were viewed under a light microscope for anatomical study. The xylem components play a significant role in the taxonomic root portions. The pith area is a broad region in stem sections, and the upper portion of the epidermis cells is encircled by a distinct indented cuticle layer. The leaves' primary vein is represented by open collateral bundles. Pollen grains in Verbascum sinuatum subsp. sinuatum var. adenosepalum are tricolporate-tricolpate, prolate-spheroidal, and have reticulate exine ornamentation. Similarly, pollen grains in V. sinuatum subsp. sinuatum var. sinuatum are tricolporate-tricolpate, prolate, and have reticulate exine ornamentation. The brown seeds of V. sinuatum subsp. sinuatum var. adenosepalum and V. sinuatum subsp. sinuatum var. sinuatum have an alveolate, deep and wide posterior region, a truncated beak, and a prismatic-oblong shape. The ornamentation of the seed coat is made up of irregular polygonal cells that have noticeable and dense vesicles. The importance of a few traits in the Verbascum variety delimitation has been investigated in this study. For the purpose of supporting ancestral traits in the infrageneric classification and helping with genus systematics, some pollen and seed characters which are typically connected to pollen and seed micromorphological and anatomical patterns can be applied. [ABSTRACT FROM AUTHOR]

The morphological characteristics of seeds are not affected by environmental factors and can be used to identify the Euphorbia taxa. The present study aims to determine the morphological characteristics of seeds in 27 taxa of Euphorbia using scanning electron microscopy (SEM) and light microscope (LM). Findings revealed that the seeds of Euphorbia show variation in size, color, and seed surface ornamentations among different species. The seeds vary also in shape from ovoid, ellipsoidal, globose, quadrangular, compressed, to compressed-ellipsoidal with two exceptions in E. petiolata (oblong-quadrangular truncate), E. macrocarpa (subglobose), and E. szovitsii var. kharputensis (ellipsoidal quadrangular truncate). Furthermore, it was demonstrated that caruncle color, shape, and surface are different in the studied Euphorbia spp. Special attention was also paid to lipid granules indicating their shape variation among taxa from globose, broad ellipsoidal globose to reniform, although the granules were absent in some taxa. In addition, some taxa lack any caruncle. The unweighted pair group method with arithmetic mean and principal component analysis was used to assess the morphological differentiation of the seeds among the studied taxa. According to the dendrogram and plot obtained from cluster and PCA analyses, Euphorbia taxa are divided into four clusters corroborating the previous molecular phylogenetic results. [ABSTRACT FROM AUTHOR]

The objective of the current investigation is to use scanning electron and light microscopy to obtain pollen morphological information for all Artemisia taxa growing in Turkey. In addition, statistical analyses were performed and a dichotomous key was prepared for the identification of taxa using pollen characters. Pollen grains of Artemisia are radially symmetrical, isopolar, oblate-spheroidal, and prolate-spheroidal, with the polar axis ranging from 15.23–27.20 µm. The equatorial diameter ranges from 16.48–27.47 µm. Artemisia taxa typically have tricolporate, tricolpate pollen. However, pantocolporate, pantocolpate, and syncolporate pollen grains are rarely present in A. austriaca and A. armeniaca. Our study showed that, although other Artemisia taxa have an ornamentation that is microechinate-granulate, A. incana, A. taurica var. vanensis, and A. spicigera differ by their microechinate ornamentation. Furthermore, we found that A. chamaemelifolia contains the highest number of microechinae per 25 µm2, whereas A. fragrans had the fewest. Additionally, the average number of granules differs between taxa. The number of granules per 25 µm2 is the highest in A. scoparia and the lowest in A. santonicum subsp. santonicum. Furthermore, the UPGMA (unweighted pair group method with arithmetic mean) dendrogram indicated that there are three different groups of taxa based on pollen morphological characteristics from 26 taxa. The average number of granules per 25 µm2, as determined by the principal component analysis, plays a significant role in this classification scheme. [ABSTRACT FROM AUTHOR]

Verbascum globiferum Hub.-Mor. and V. lysiosepalum Hub.-Mor. are endemic to Turkey which is a center of endemism for Verbascum species. This study gives the anatomical, palynological and seed micromorphological features of V. globiferum and V. lysiosepalum which grow in Diyarbakır. The xylem elements occupy a large area in the root cross-sections of the species. In stem cross-sections, the upper part of the epidermis cells is surrounded by a separate cuticle layer and the pith region covers a large area. In the leaves, the main vein is shapped as collateral bundle. Pollen grains are tricolporatetricolpate, oblate-spheroidal, and exine ornamentation is reticulate. Seeds are brown and oblong-ovate to prismatic and alveolate. The seed coat ornamentation is irregular with polygonal cells, with densely, distinct vesicles. The capsules are pubescent, covered with stellate and branched hairy or glandular hairs. The seed displayed that substantial taxonomic understanding can be acquired from examining the seed characteristics of Verbascum, particularly at the species level. [ABSTRACT FROM AUTHOR]

The pollen morphology of 23 Allium L. species, grown in Turkey, belonging to the sections; Rhizirideum, Schoenoprasum, Cepa, Molium, Brevispatha, Scorodon, Acanthoprason and Melanocrommyum, were investigated by LM (light microscopy), TEM (transmission electron microscope), and SEM (scanning electron microscopy). This paper presents detailed pollen morphological features are given for these taxa. Common characteristics of pollen of Allium species investigated are ellipsoidal and heteropolar, bilateral symmetry; pollen grains are shed as monads. They are monosulcate (extended sulcate types) and monosulcate-operculate. The sculpturing of the exine, pollen membrane ornamentation, lumina shape, and sulcus membrane with a fragmented operculum are found to be characteristic features for separating species. Based on these properties three main pollen types were determined with three different exine sculpturing. The characteristic structures of pollen ornamentation, observed in SEM micrographs, are striateperforate, striateregulate- perforate and regulate-perforate. Sulcus membrane ornamentations are psilate, psilate-perforate, rugulate and regulate-perforate. The exine is semitectate and the tectum perforate. Columellae were found to be simplicolumellate. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agriculture & Nature / Kahramanmaraş Sütçü İmam Üniversitesi Tarım & Doğa Dergisi is the property of Kahramanmaras Sutcu Imam Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Pollen and cypsela morphology of four species of the genus Rhaponticum (Asteraceae) distributed in Turkey were investigated and compared utilizing light microscopy and scanning electron microscopy to identify these characteristics and to evaluate the diagnostic value of them for contribution to the systematics of the Turkish Rhaponticum. The pollen grains of Rhaponticum are radially symmetrical and isopolar. Their shape is prolate-spheroidal and oblate-spheroidal, with the polar axis ranging from 32 to 56.64 μm and the equatorial axis ranging from 31.92 to 56.64 μm. The aperture type is usually trizonocolporate, and rarely tetracolporate. Exine sculpturing can be divided into two types, namely microechinate and echinate. The cypselas are obovoid or narrowly obovoid in shape and dark brown with cream at the base, brown or dark yellow-green in color. The size of the cypselas range between 3.19–11 mm in length and 1.4–4.5 mm in width. The pappus shows variation in type and status: barbellate, scabrose and barbellate at apex, plumose or only scabrose and persistent or deciduous. Cluster analysis and principal component analysis revealed that especially pollen size, pollen shape, exine ornamentation, cypsela length and pappus type are significant variables for separating species in the taxonomy of the genus. [ABSTRACT FROM AUTHOR]

Labidostomis kaszabiMedvedev, 1962 specimens were collected from Çankırı and Çorum and morphological of the aedeagus and spermatheca of Labidostomis kaszabiMedvedev, 1962 (Coleoptera: Chrysomelidae: Clytrinae) in SEM for the first time. Samples is collected Çankırı and Çorum provinces are new records. Detailed investigation of the aedeagus and spermatheca are important to obtain new diagnostic characters in Labidostomis. Stereomicroscope photos and SEM image are also given in the text. [ABSTRACT FROM AUTHOR]

In this study, structural, thermal, and hydrogen (H2 ) adsorption properties of natural analcime-rich zeolite tuff (A) from Trakya (Turkey) and that of acid-treated forms investigated. Analcime mineral was treated with 0.1, 0.5, 1, 2, and 3 M HCl solutions at 80 °C for 5 h. Differences in structural and thermal behaviors of the analcime samples before and after acid- treatment were examined by X-ray fluorescence spectroscopy (XRF), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy with detector x-ray energy dispersive (SEM-EDX), thermal analysis (TG-DTG-DTA) and nitrogen adsorption methods. Micropore volume, micropore area, and specific surface area values of the acid-treated analcimes were very high compared to the natural analcime sample. It was found that the acid-treated analcime zeolites with a high SiO2 /Al2 O3 ratio exhibited higher H2 adsorption capacity and thermal stability. H2 adsorption capacities of natural and acid-treated analcimes at 77 K up to 100 kPa were found between 0.255 and 0.632 mmol/g. The hydrogen adsorption capacities of analcime samples increases in the order A < 05HA < 01HA < 1HA < 2HA < 3HA. Additionally, it was determined that the hydrogen adsorption capacity of analcime samples had an almost linear connection to the BET surface areas. [ABSTRACT FROM AUTHOR]

This paper includes a comprehensive taxonomical study based on seed morphology of 31 Euphorbia L species from Türkiye. The studied Euphorbia taxa have been examined for morphological traits such as seed color, dimensions, surface ornamentation, cell wall structures, lipid granule presence, and caruncle shape and dimensions with Scanning electron microscopy (SEM) and stereo microscopy to develop a better understanding of the basis of its species. The outcomes show that the species differ based on seed shape and color. The seed width dimensions are between 0.55 and 3.83 mm and the length dimensions are between 1.03 and 5.87 mm. Euphorbia lathyris, E. prostrata, and E. nutans are marked differently from the rest of the studied species based on their seed dimension. The seed surface ornamentation is classified into 12 different types: tuberculate, reticulate, areolate, colliculate, verrucate, alveolate, rugose, alveolate-reticulate, slightly reticulate, reticulate-areolate, pusticulate, and ruminate. The most common form is reticulate, found in eight species. The tuberculate (in E. helioscopia), areolate (in E. oblongata), slightly reticulate (in E. amygdaloides), and ruminate (in E. herniariifolia) ornamentation types are each characterized by only one species. The presence of lipid granules and anticlinal and periclinal cell walls disclose interspecific relationships within the examined taxa. Also, an identification key is offered for the studied species based on seed characters. RESEARCH HIGHLIGHTS: The seeds of Turkish Euphorbia species have been studied in depth. The morphological characters of seeds of Turkish Euphorbia species have been examined utilizing SEM and light microscopy for the first time and discussed the taxonomic practice of these characteristics. A dichotomous key containing seed morphological data has presented., (© 2024 Wiley Periodicals LLC.)

The genus Tilia L. belongs to Malvaceae and it is represented by four species in Turkey. These are T. cordata, T. platyphyllos, T. rubra subsp. caucasica, and T. tomentosa. Tilia species have medicinal importance, especially to treat colds, flu, and coughs, and are also used as sedatives. Inflorescence with bract is recorded in the pharmacopeia as used parts. This study aimed to investigate the differences in leaf and bract characteristics in distinguishing Tilia species. Leaves and bracts were examined anatomically and micromorphologically under light and scanning electron microscopes (LM and SEM). There is no comparative anatomical and micromorphological study of Tilia species from Turkey. Microscopic examination allows for the observation of stomata types, trichomes, and other anatomical structures. These features can vary among species and can aid in differentiation. Features of bract that is medicinally used part were evaluated to find efficient diagnostic characters. The leaves also possess distinct characteristics, and leaf morphology is already used in the identification key in Flora. The emphasis is on identifying the species of medically used drugs. A diagnostic key was created using LM and SEM based on bract features to differentiate taxa for the first time. RESEARCH HIGHLIGHTS: Leaf and bract anatomy of Tilia taxa was studied via LM and SEM. The raw plant material is inflorescence with bract so identification by bract is important for species adulteration. An diagnostic key based on bract features was created for the first time., (© 2024 The Author(s). Microscopy Research and Technique published by Wiley Periodicals LLC.)

Achillea alimeana Semiz & Uysal sp. nov. of sect. Santolinoidea DC. (Asteraceae), was described, diagnosed and illustrated as a new species. It was collected from Akdağ Mountains in Denizli Province. In this paper, the diagnostic characters of A. alimeana and its similar species were discussed in the morphological, palynological and molecular findings. As regards the new species, some notes on the ecology, conservation status, and distribution were submitted. A diagnostic key was given for related taxa. [ABSTRACT FROM AUTHOR]

This study presents the pollen morphology of 16 taxa of Linum L. section Syllinum Griseb., 13 of which being endemic to Turkey, by using light and scanning electron microscopy. All the pollen grains are trizonocolpate; however, some taxa were observed to have also hexacolpate grains along with trizonocolpate ones. The pollen grains are large, suboblate, less often oblate spheroidal in shape. Distyly is predominantly present in the section, except for homostylous species Linum nodiflorum L. All the studied distylous taxa have dimorphic pollen grains. In short-styled floral morphs, the exine has monomorphic processes, gemmae, which at the top have a ring of marginal papillae, with or without prominent central papilla. In long-styled floral morphs and in homostylous morph, the exine is dimorphic and has two types of processes: bacula, smaller in diameter, ending in a central microechinus, and clavae, larger in diameter with a central microechinus ending into lobes or a ring of scabrae at the margins. In the studied distylous species, the pollen of short-styled morphs is larger than that of the long-styled morphs. Based on the morphometric data, the principal component analysis has grouped these two morphs separately; with the homostylous one, although with dimorphic exine, nested within the short-styled morphs. This could be considered as evidence supporting the loss of heterostyly in homostylous Linum. [ABSTRACT FROM AUTHOR]

The aims of this study were to investigate the relationship between organizational support perceptions and personal growth initiative levels of the faculty members working in Turkey and to examine the effect of self-efficacy perceptions in this relationship. The study was designed as a relational survey model. 346 faculty members from public universities in Turkey comprised the participants. The data was collected with General Self-Efficacy Scale (GSES), Perceived Organizational Support Scale (POSS), Personal Growth Initiative Scale-II (PGIS-II). Descriptive analyses and structural equation modeling (SEM) was applied to examine the structural relations among the variables. It was observed that faculty members' organizational support perceptions had a significant direct effect on their personal growth initiative levels; organizational support perceptions had a significant effect on general self-efficacy beliefs; and the effect of general self-efficacy beliefs on personal growth initiative levels was significant. It was evidenced that faculty members' self-efficacy beliefs fully mediated the relationship between perceived organizational support and personal growth initiative levels. These results are in line with the principles of Organizational Support Theory and Social Cognitive Theory. More research explaining the effect of organizational factors on self-efficacy and personal growth initiative is needed. [ABSTRACT FROM AUTHOR]

Copyright of Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi is the property of Artvin Coruh University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: The purpose of this study is to evaluate the bond strength of different repair systems by using composite resin and ceramic cementation repair methods to zirconia-based ceramics. Material and Method: All-ceramic blocks (IPS Empress II; Ivoclar Vivadent, Schaan, Liechtenstein) sized 4.00 mm in length, 5.4 mm in width, and 3.00 mm in height were fabricated by dental laboratory as thirty specimens. CAD/CAM zirconia blocks (n =40) (Prozir; SeramDent, Turkey) sized 5.00 mm in length, 5.4 mm in width and 13.0 mm in height by CEREC System were fabricated from fully sintered Y-TZP core. Zirconia specimens were randomly divided into seven groups for the following different intraoral repair systems(Clearfil, Cimara Zircon, Bisco) and a control group. Every ten specimens were repaired as same sized. Control group was fabricated by conventional firing as unbroken solid zirconia ceramic samples. Each specimen underwent 5000 cycles of thermocycling. The SBSt (Shear bond strength test) was performed by loading force on the repaired piece to record load-to-failure. Failure mode was evaluated using a digital microscope and SEM. SBSt data were analyzed using one-way ANOVA and Tukey’s HSD test. Results: Clearfil and Cimara Zircon systems significantly increased the bond strength for composite resin method when compared with the Bisco system (respectively p <0.001, p =0.001). All-ceramic method significantly increased the bond strength when compared with the composite resin in Bisco system (p <0.001). Conclusion: Although the composite restoration method is effective for repair, the all-ceramic/zirconia repair method can be an option for repairing layered zirconia restorations. [ABSTRACT FROM AUTHOR]

The continuation of individuals to use social network sites is critical both for the long-term success of social network sites and for companies that invest in these platforms. In this study, it was aimed to determine the factors that influence the intentions of Turkish Instagram users to continue using the platform by incorporating a variety of socio-psychological theoretical models and theories. The empirical model of the study was tested by using the Structural Equation Modelling (SEM) technique. Data for this research were collected from 335 participants via the online survey. The empirical results revealed that perceived enjoyment had a strong and statistically significant effect on satisfaction, and satisfaction had a strong and statistically significant effect on continuance intention. [ABSTRACT FROM AUTHOR]

A new Centaurea species, C. mengenensis Uysal & Şirin, is described and illustrated from Mengen district, Anatolia, based on morphological and molecular data. To identify its taxonomical position within Centaurea, the internal transcribed spacer (ITS) = gene region of the new species was amplified and sequenced. The new species belongs in Centaurea subg. Centaurea as shown by both morphological and molecular data. Its diagnostic characters are presented, including an updated key to related species distributed in Turkey. Additionally, the geographic distribution of the new species, as well as of its relatives, is mapped. The chromosome number of C. mengenensis is 2n = 2x = 18 and its achene surface ornamentation is irregularly sulcate. [ABSTRACT FROM AUTHOR]

The hindgut ciliate diversity of domestic horses in Kastamonu, Turkey was investigated; 34 species and 3 morphotypes belonging to 20 genera were identified, but no novel species were detected. For individual domestic horses, the total number of ciliate species per animal ranged from 3.0 to 22.0, with an average of 13.9 ± 7.0 (SD). The average abundance of hindgut ciliates in the 11 domestic horses was 5.6 ± 5.8 × 104 cells mL-1, and the min.-max. values ranged from 1.0 × 104 cells mL-1 to 29.5 × 104 cells mL-1. Except for three individuals, all other domestic horses contained Bundleia postciliata, Polymorphella ampulla, Blepharocorys curvigula, and Spirodinium equi, each with a prevalence of 72.2%, whereas Bundleia inflata, Tetratoxum excavatum m. excavatum, and Tetratoxum parvum m. sulcatum were observed in only one horse, and their prevalence was 9.1%. Scanning electron microscopy images of the following species were analyzed: Paraisotricha colpoidea, P. ampulla, B. postciliata, Bundleia piriformis, Blepharoprosthium pireum, Hemiprorodon gymnoposthium, Holophryoides macrotricha, Holophryoides ovalis, Blepharocorys angusta, B. curvigula, Blepharocorys microcorys, Blepharocorys uncinata, Cycloposthium bipalmatum, Cycloposthium edentatum m. edentatum, Tripalmaria dogieli, S. equi, T. excavatum m. excavatum, Tetratoxum unifasciculatum, Ditoxum funinucleum, Cochliatoxum periachtum, Triadinium caudatum, Circodinium minimum, Gassovskiella galea, and Allantosoma intestinale. [ABSTRACT FROM AUTHOR]

In the study, the achene macromorphological and micromorphological characters of the genus Artemisia distributed in Turkey have been researched with the target of knowing systematically important carpological structures for the examined species. Macro-morphological structures of the achenes including color, shape, dimension, and carpopodium diameter were studied with 100 achenes of 10 specimens per taxa with a Light Microscope. Micro-morphological features of the achenes containing surface ornamentation, anticlinal and periclinal cell walls, epidermal cells, and the presence of secondary structures were examined with a Scanning Electron Microscope. EDS analyses were performed with a SEM. EDS analyses were carried out by selecting the same spot on the sample surface at 80 sec under 30 μm aperture size, with 20 kV acceleration voltage, 8 mm operating distance, high current, and processing time conditions. The color, shape, and dimension of achene have macro-morphologically shown variations. The examined achenes are separated into four shapes; fusiform-oblong, oblong, oblong-ovate, and ovate. Oblong-ovate is the most common type. Achene dimensions range from 0.62 to 2.48 mm in length, and from 0.30 to 1.21 mm in width. Also, carpopodium diameter varies between 0.10 and 0.19 mm. Achene surfaces of the examined taxa are micro-morphologically assessed, and substantial differences are noticeably detected on behalf of the surface structures for instance, surface ornamentation, anticlinal and periclinal cell walls, epidermal cells, and the presence of secondary structures of the achenes. Surface ornamentation is separated into 10 types: irregularly sulcate, regularly sulcate, ruminate, sulcate-scalariform, rugose, favulariate, slightly sulcate, alveolate, tuberculate, and reticulate. A percentage comparison of the elements in the achene pericarp of the studied taxa has been performed with SEM-EDS. Accordingly, pericarps in taxa include C, Ca, K, Mg, Cl, Si, Na, and S elements. In the taxonomy of the genus Artemisia, the achene morphological characters are very significant characteristics that disclose inter-specific relations among the examined taxa. Moreover, a dichotomous key is offered for the identification of the studied taxa based on achene characters. RESEARCH HIGHLIGHTS: The achenes of Turkish Artemisia taxa have been examined in depth. The morphological characteristics of achenes of Turkish Artemisia taxa have been studied using SEM and LM for the first time and debated the systematic practice of these characters. The elemental content of the achene pericarp has been systematically evaluated for the first time., (© 2024 Wiley Periodicals LLC.)

The leaf, stem, calyx, and corolla indumentum of seven endemic taxa belonging to Stachys subsect. Fragiles, growing in Turkey, were micromorphologically and anatomically analyzed under scanning electron and light microscopes with the use of cluster analysis and Principal Component Analysis. We detected 10 trichome types on the leaf, seven trichome types on the stem and calyx, and eight trichome types on the corolla. Especially, the type and distribution of the trichomes on the calyx and corolla surfaces were quite different. The calyx and corolla had seven and eight trichome types, including glandular or non-glandular, in the examined taxa, respectively. The most common type observed was a short clavate glandular trichome; however, conical thin-walled unicellular hairs were specific for the studied taxa. No branched trichomes were observed. In the examined taxa, the indumentum indicated variations and some important similarities. The indumentum types have a high taxonomical value for the species of the genus. A key has been offered for the identification of the studied taxa based on the trichome characters, by comparing the key of classic taxonomic characters. [ABSTRACT FROM AUTHOR]

In this study, the pollen morphology of all Ferula species distributed throughout the country of Turkey was studied with light and scanning electron microscopy for the first time. The aim is to identify the pollen morphological characteristics of 23 Ferula species. The pollen is radially symmetrical, isopolar and tricolporate in all examined species. Pollen grains are prolate and perprolate with the polar axis ranging from 22.28 to 40.47 µm and the equatorial axis from 13.70 to 18.73 µm. Their polar shapes are triangular, triangular to subtriangular and circular to subcircular. Several types of exine ornamentations have been observed on pollen through the use of scanning electron microscopy. The dendrogram constructed by using Average Linkage of the examined data revealed two main groups. It was determined that some pollen characteristics are more useful for classification than others. In particular, P, E, the ratio of P/E (pollen shape) and ornamentation in the polar and equatorial views are the most valuable variables for discrimination the Ferula species. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Agriculture & Nature / Kahramanmaraş Sütçü İmam Üniversitesi Tarım & Doğa Dergisi is the property of Kahramanmaras Sutcu Imam Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Bolanthus including 11 species and all endemic in Turkey. Pollen morphology that belong to the genus Bolanthus were investigated using light microscopy (LM) and scanning electron microscopy (SEM). In this study, all of 11 species in Bolanthus were studied. Pollen of seven species were determined from Turkey and reported for the first time. Pollen shape has two different ornamentation at genus Bolanthus as prolate-spheroidal and oblate-spheroidal. Pollen grains are polipantoporate and isopolar symmetrical. The pollen ornamentation is scabrate-perforate. Pollen diameter, pore diameter, pore numbers, exine thickness, operculum diameter, distance between two pores, spinule numbers, punctum numbers are varying characters between Bolanthus species. The taxonomic separations of the species have been demonstrated with SPSS analysis as dendrogram. [ABSTRACT FROM AUTHOR]

This study examines customer satisfaction with waiting time (WT) and customer loyalty (CL) relationships in the airline industry. The mediating influence of waiting time satisfaction (WTS) in the self‐service technology (SST) and CL relationship was also examined. Seven hundred fifty structured questionnaires were administered at Sabiha Gökçen, and Instabul international airports in Turkey and partial least square–structural equation modeling were employed for the model analysis. The findings reveal that SST, perceived, retrospective, and prospective WTs are major determinants of WTS. Furthermore, SST and WTS were found to have a linear and significant positive influence on CL. Therefore, this study suggests that the airport management should identify the causes of WT, make the waiting environment conducive for the customers, make the WT inconsequential to the customers, and enhance their loyalty to the airport. [ABSTRACT FROM AUTHOR]

The vertebral anatomy of snakes has attracted the attention of researchers for decades and numerous studies have been made for extinct and extant species. The present study investigated the morphological variations in vertebral structure among different vertebral regions in the dice snake Natrix tessellata, and provides a detailed anatomical and microstructural description of the vertebral column. Vertebrae were analyzed and compared using x-ray imaging, scanning electron microscopy, micro-computed tomography, and histological techniques. The vertebral column of N. tessellata is divided into three regions: precloacal, cloacal, and caudal. Unlike in many other tetrapods and snakes, the atlas of N. tessellata does not form a complete ring. It has a flat and roughly trilobate shape with a prominent middle lobe. The axis has two hypapophyses. The anterior precloacal region of the vertebral column has longer and more paddle-shaped hypapophyses, distinguishing it from the posterior and mid-trunk vertebrae. The anterior cloacal vertebrae have a short hypapophysis rather than a hemal keel, and the lymphapophysis extends outward, curving slightly. The cotyle and condyle of the caudal vertebrae exhibited a closer resemblance to a rounded shape, while the pleurapophysis extended ventrolaterally and curved ventrally near its distal end. Paired hemapophyses were present at the posterior-most point of the centrum instead of a hypapophysis. In light of previous fossil findings, our anatomical comparison of the vertebral and transverse processes indicates that the extant Natrix has a more flexible and less rigid spine than its ancestors. Overall, the vertebral differences among snake anatomical regions or taxa are a testament to the remarkable diversity and adaptability of these fascinating reptiles., (© 2023 The Authors. The Anatomical Record published by Wiley Periodicals LLC on behalf of American Association for Anatomy.)

In this study, the effect of "altruism" which is accepted as the golden rule in all religions, is investigated on the Muslim consumer behavior. Secondly, this study aims to explore the mediating role of green consumption. The sample was chosen from consumers living in Turkey. Using a quantitative research method, data were gathered by online survey with 523 consumers. Research hypothesis were tested by Structural Equation Modelling. The mediating role of variables was also tested by Sobel test. Previous research on altruism has not been considered the mediating role of green consumption on Muslim consumer behavior. The contribution of this study to literature is investigating the mediating role of green consumption. The study will also useful to academics, marketers and other researchers working in this area. Charity and donation dimension of altruism has no effect on Muslim consumer behavior, which is an unexpected outcome. In terms of mediation effect, Using Baron and Kenny's approach, green consumption partially mediated the relationship between dependent and independent variables. [ABSTRACT FROM AUTHOR]

This study aimed to investigate the scanning electron microscopic (SEM), histological and morphological characteristics of the tongue and papillae in Egyptian mongoose (Herpestes ichneumon L, 1758). The tongues of two (one female, one male) dead mongoose tongue was used as material. The tongues of the mongooses were removed via the dissection method and morphometric measurements were taken. The tongues were fixed in 10% buffered formalin solution. Scanning electron microscopy and histological analyses were performed. According to the results, there were four types of papillae; filiform, fungiform, vallate, and foliate. The filiform papillae differed in terms of type and location on the tongue. It was seen that the filiform papillae had an arrow shape in the lateral cuts. The filiform type was observed on the tip of the tongue, both filiform and bound types on the middle of the tongue and both conic and hook types on the root. The foliate papillae were located laterally in the tongues and did not have ducts. There were four vallate papillae in the tongue of the male mongoose and three vallate papillae in that of the female mongoose. This study presents the first SEM, histological and morphological analyses of the tongue and its papillae in the Egyptian mongoose found in Turkey. [ABSTRACT FROM AUTHOR]

This study aimed to investigate the factors influencing employee motivation and performance of information technology projects in Turkey and the perception of employee motivation next to it and investigate the effect of redundancy request. The employee on different IT projects was selected in Turkey for this study. Seven hypotheses were developed and tested by using literature studies and survey data obtained together. For the hypothesis tests, structural equation modeling was performed by using SPSS and AMOS programs. As a result of the application, five hypotheses were accepted, and two hypotheses were rejected. According to the results of the analysis, it is seen that employee-manager relationships and wage satisfaction have a positive effect on employee motivation. In addition, the hypothesis that the relationship between employee and manager affects performance other than motivation was supported. Also, perceived alternative job opportunities were found to have a positive effect on willingness to leave and a negative impact on employee motivation. The results were interpreted in support of the literature, and suggestions were made to shed light on future studies, and the study was completed in this way. [ABSTRACT FROM AUTHOR]

Purpose: The study compares the impact of four components of transformational leadership (TL), namely, idealized influence (II), inspirational motivation, intellectual stimulation (IS), and individualized consideration (IC) on employee creativity (EC) at the workplace between Turkey and Algeria, taking into account the mediating effect of employee's creative role identity (CRI). Design/methodology/approach: Data were collected from 688 managers working for conglomerate companies in both countries and the analysis was performed using a two-stage structural equation modeling (SEM) for model and hypothesis testing. Findings: The findings highlighted that managers from both countries have divergent stances toward TL's impact on EC; Algerian managers recognized the impact relationship between CRI and EC. Meanwhile, Turkish managers believed in the efficiency of every component independently. Research limitations/implications: When generalizing the research results, a debate might arise in regards to both the data collection instrument and the data being collected from two companies only. Therefore, upcoming research might opt for using further data collection methods and expand the data collection sources to cover larger targets. Practical implications: The study's findings help in assisting managers and decision-makers in both countries into strategically adjusting their managerial approaches accordingly and appropriately stimulating EC at the workplace. Social implications: The findings provided insights into elevating and strengthening a mere formal leader–member relationship to a personally satisfying and mutually beneficial social bond. Originality/value: Throughout literature, the light was shed on the fundamental, yet, infrequently discussed link between TL components and employee CRI. The comparative nature and findings of our study could be considered building blocks for further academic research about leadership in both countries. [ABSTRACT FROM AUTHOR]

In the present study, the morphological characters, root, stem and leaf anatomy, pollen and achene micromorphology of Bellis L. species (Bellis annua L., B. perennis L. and B. sylvestris Cirillo) distributed in Turkey have been investigated on light and scanning electron microscope. Palynological analysis showed that pollen characters were found as small to medium size, isopolar, radially symmetrical, oblate-spheroidal and prolatespheroidal, tricolporate and echinate-perforate ornamentation in the three species. Achene characters were found dark brown to yellow in colour, often cylindrical, compressed, with thickened margin, obovate orobovoid shaped, pappus absent and the coat ornamentations are rectangular with short hairs on the surface. As a result of this study, leaf morphology and some pollen characteristics such as pollen size, shape, perforation and distance between spines were demonstrated to be different among the Bellis species. [ABSTRACT FROM AUTHOR]

Copyright of Istanbul Commerce University Journal of Social Sciences / İstanbul Ticaret Üniversitesi Sosyal Bilimler Dergisi is the property of Istanbul Commerce University Journal of Social Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

An 11-year-old, male, crossbreed cat was presented for a subcutaneous mass affecting the prescapular region extending to the thoracic vertebrae. The diagnosis of fibrosarcoma was made according to the histopathological examination of the biopsy. Scanning electron microscopy (SEM-EDX) was used to determine the presence of aluminium in the tumor tissue. The owner did not accept further treatment, so the cat died 1 month after diagnosis. This is the first case report from Turkey which diagnoses verified by SEM and has shown that aluminium-containing vaccines may be associated with fibrosarcoma formation. Awareness of the side effects of adjuvants is still not enough level. Determining the frequency of VAS in fibrosarcoma cases will contribute to the increase of life span/survival by protective measures. The aim of this case report is to draw attention to the adjuvant contents of the vaccines and to scrutinize the relationship between vaccine applications and tumor development. [ABSTRACT FROM AUTHOR]

Salvia L., the largest genus of the family Lamiaceae, is composed of many well-known plants of medicinal value. This study provides the first data on micromorphology, myxocarpy, mineral content and in vitro antimicrobial and antiproliferative activities of mericarps of Salvia pilifera, considered to be a vulnerable endemic species from Turkey. The macro- and micromorphological mericarp traits were documented and illustrated via stereo microscopy and scanning electron microscopy. Mineral content of mericarps was analyzed using ICP-MS. Ethanol extract of mericarps was tested against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Acinetobacter baumannii, Aeromonas hydrophila, Candida albicans, Candida tropicalis, and Candida glabrata using broth microdilution method. Antimycobacterial activity was performed against Mycobacterium tuberculosis H37Rv using resazurin microtiter plate method. Ampicillin, Ethambutol, Isoniazid, and Fluconazole were chosen as reference drugs. Antiproliferative effect of the extract was tested against A549 human lung cancer cell lines using MTT test. The size of the mericarps was 4.38±0.17 mm in length and 3.28±0.13 mm in width. The general shape was elliptic to widely elliptic. The abscission scar was nearly rounded. The ornamentation pattern of the surface was colliculate with polygonal exocarp cells. Myxocarpy was observed on the surface of the mericarps when they become hydrated. Transparent mucilaginous cells showed a moderate reaction with extensions more than 0.1 mm long. Potassium and calcium were determined as major minerals (80.662±0.234 and 41.892±0.399 µg/g, respectively). The extract showed greater antibacterial activity against A. baumannii compared to Ampicillin (62.5 and 125 µg/mL MIC values, respectively). Cell viability level of the extract (100 µg/mL) was found to be statistically lower than control group against A549 human lung cancer cell lines (P<0.05). [ABSTRACT FROM AUTHOR]

This study includes on the taxonomic evaluation of morphological and anatomical features of seeds belonging to Iris taxa, which are I. suaveolens, I. sintenisii, I. foetidissima and I. germanica scattered in Turkey. Morphological features like dimension, shape, colour, and surface ornamentation types of seeds have studied by light and scanning electron microscopes. The structure and thicknesses of testa and parenchyma layers in seeds have examined anatomically. The obtained results show that the color, shape, testa structure and thickness of the seeds of the examined taxa are different in some respects. Furthermore, the surface ornamentations are somewhat diverse for the studied taxa at the interspecific level. As a result, it has been determined that the examined morphological and anatomical characteristics of the seeds show variations with some exceptions, and this situation has a taxonomic importance. [ABSTRACT FROM AUTHOR]

Micromorphology and anatomy of six Onosma L. species, viz. O. argentata Hub.- Mor., O. neglecta Riedl, O. proballanthera Rech. f., O. rechingeri Riedl, O. sericea Willd. and O. stenoloba Hausskn. ex Riedl from Turky were investigated. Stem anatomy revealed that cuticle layer ranged from 0.6 µm in O. argentata to 1.7 µm in O. proballanthera. Parenchymatous cells of O. neglecta and O. stenoloba possessed more intense starch than the other species studied. In leaf anatomy, the longest palisade parenchyma was found in O. neglecta, while the smallest was noted in O. argentata. Mesophyll structure of O. argentata, O. sericea and O. rechingeri was equifacial (isobilateral), while O. neglecta, O. proballanthera and O. stenoloba presented bifacial (dorsiventral) structure. Rugose nutlet ornamentation was observed in O. argentata, O. neglecta and O. sericea, whereas reticulate type was found in O. proballanthera, O. rechingeri and O. stenoloba. Onosma stenoloba could easily be distinguished from other species by its aesterotrichous indumentum, and in contrary, other species possessed haplotrichous type of indumentum. Micromorphological features of nutlet surface, anatomical features of epidermal surface (trichomes and stomata), and lamina mesophyll structure (dorsiventral and isobilateral) could be useful in solving taxonomic problem of the genus. [ABSTRACT FROM AUTHOR]

The pollen morphology of 10 Allium L. taxa, 6 of which are endemic to Turkey, were investigated in detail by light and scanning electron microscopy. According to LM and SEM, the pollen grains of genera were monad, monosulcate percolate, heteropolar with bilateral symmetry, 25.30 to 53,85 µm long axis (LA) and 17.55 to 36.86 µm short axis (SA), the form was prolate (mean of LA/SA ratio 1.30 to 1.70 and in polar view boat-shaped. Three types of ornamentation were determined. Striate-rugulate-perforate type in Allium longisepalum, A. oreophilum, A. anacoleum, A. microspathum, A. shirnakiense, A. purpureoviride and A. armenum, Rugulate--perforate type in A. pervariense and A. gabardagense and Rugulate--reticulate-perforate type in A. arlgirdense. Sulcus membrane ornamentations were rugulate or psilate. The sulcus extends from the distal to proximal ends in A. anacoleum, A. arlgirdense and A. pervariense. The present study on some Turkish species of Allium showed that several morphological pollen characters may possess taxonomical value. [ABSTRACT FROM AUTHOR]

The purpose of this paper is to identify the nest materials, some physical characteristics and the elemental composition of the nest of Sceliphron curvatum (Smith, 1870). The nest surfaces were observed with a stereomicroscope and scanning electron microscope (SEM). In the inner surface of the S. curvatum nest of the fibers in the mud-ball nest varied between 427 nm and 6300 nm, respectively and averaged 1465.730 nm. The thickness of the fibers in the outer and the inner surface section of the mud nest were between 14 nm and 1430 nm, respectively and averaged 629.373 nm. The nitrogen concentration was 3.94%, the percentages of the saliva, soil and the water absorption capacity were calculated to be 4.848%, 95.152%, and 18.51%, respectively. However, the amount of the elements carbon (C), hydrogen (H), sulphur (S) and nitrogen (N) in the nest was found to have a value of 3.38, 1.526, 0.020 and 0.38 weight % respectively. The colors of the individual mud pots are composed of building materials of different origin and with different shades of almost white over light brown to greyish black with long dark and light brown lines. We have found that the ratios and amount of physical characteristics, elemental composition and the fibers in the mud-ball of the nest of S. curvatum change with soil structure in which nest is built. [ABSTRACT FROM AUTHOR]

In this paper, the palynomorphology of 17 taxa of section Cheirolepis in Turkey, were investigated by light (LM) and scanning electron microscope (SEM). Detailed descriptions of the pollen grains were given for each taxon and a well-resolved dendrogram was generated through numerical analysis of palynological diagnostic features. The pollen grains were found to be radially symmetric, isopolar, and generally 3-zonocolporate, with the exception of C. derderiifolia, C. kotschyi var. floccosa, and C. saligna, which were also 4-zonocolporate. The shape of the pollen grains were prolatespheroidal, with the polar axes of 32.76-46.26 µm and equatorial axes of 31.86-45.82 µm. The sculpturing of the pollen grains was generally scabrate-perforate or rarely microechinate-perforate. The spines were conical with a changing base length. The length and the width of the spines varied between 0.48 and 2.28 µm and 0.4 and 3.39 µm, respectively. The number of perforations at the base of the spines ranged in two or more rows and they varied between 5 and 30. The number of spines was 16-70 in 10 µm2. The results of this study showed that the polar axes, equatorial axes, aperture type, pollen shape, spine length, perforation number, and number of spines in 10 µm2 are essential for distinguishing the studied taxa. The taxa were grouped by clustering analysis of selected pollen characters using the UPGMA method. [ABSTRACT FROM AUTHOR]

Loyalty membership programs are widely used as a strategical tool in banking. In the paper a unique loyalty membership program in Turkey in which consumers are offered cash in order to convince them to switch their financial service provider, bank, is studied. Literature supports evidence for relationships between switching barriers and intention to switch, however literature lacks studies testing the assumptions of theories on consumer loyalty in specific industries. Exploratory in nature, the study tests the literature supported relationships based on a real life case. The paper aims to enligthen whether the consumers' loyalty can be bougth with cash and other provided benefits to make customers switch their current service provider into new account after a special loyalty membership program offered for an organization's employees. The purpose of the paper is to research effects of switching barriers on intention to switch in order to understand whether consumer base can be purchased, or consumers are earned. Structural Equation Modeling is performed with the data collected from a survey of 212 employees of an organization. The results suggest that, in banking sector, imitable switching barriers are not useful against switching intentions. [ABSTRACT FROM AUTHOR]

Copyright of Karaelmas Science & Engineering Journal / Karaelmas Fen ve Mühendislik Dergisi is the property of Karaelmas Science & Engineering Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The purpose of this paper is to identify the nest materials, some physical characteristics and the elemental composition of the nest of Dolichovespula saxonica (Fabricius, 1793). The nest surfaces were observed with a stereomicroscope and scanning electron microscope (SEM). In the inner surface of the D. saxonica nest the medium thickness of the fibers in the envelope and comb varied between 7.14 and 26.9 μm, respectively and averaged 16.4 μm. In the outer surface of the nest the medium thickness of the fibers in the envelope and comb were between 3.52 and 5.70 μm, respectively and averaged 4.63 μm. The nitrogen concentration of the nest of D. saxonica was 0.616% and the amount of protein was 3.08%. The percentages of the fibers, saliva, oil and the water absorption capacity were calculated as 67-70%, 23-30%, 12-18% and 110-140%, respectively. However, the amount of the element Cadmium (Cd) in the nest was found to have a value of 0.2 ppm. The major compounds of wasp nests are plant fibers, saliva and oil. However, the concentrations and ratios of the nest material compounds depend on the plant variety, place of origin, and time of harvest as well as on the processing and saliva conditions. The colors of the nest are beige, cream and grey with long dark brown lines. As a result of our study, we have found that the rates and quantities of physical characteristics, elemental composition and the fibers in the envelope and comb of the nest of D. saxonica change with environmental conditions. [ABSTRACT FROM AUTHOR]

Inula helenium L. subsp. orgyalis (Boiss.) Grierson and Inula ensifolia L. were investigated anatomically and micromorphologically. The secretory cavities in the leaves and stem of both investigated taxa were located in the neighbourhood of the vascular bundles and in the rhizomes in the secondary cortex. The leaf mesophylls of investigated Inula taxa were homogeneous. Stomata were anomocytic in two species. The distribution and density of the eglandular and glandular trichomes provide information of taxonomical significance. Moreover, the cypselas of I. helenium L. subsp. orgyalis were homomorphic, whereas in I. ensifolia cypselas were heteromorphic. Additionally, the number of ribs, the shape of carpopodium and stylopodium were diagnostic taxonomic characters between the two taxa. [ABSTRACT FROM AUTHOR]

A detailed micromorphological analysis of the labellum was carried out using both light and scanning electron microscopy on 14 genera (Anacamptis, Cephalanthera, Coeloglossum, Dactylorhiza, Gymnadenia, Himantoglossum, Limodorum, Neottia, Orchis, Ophrys, Platanthera, Serapias, Spiranthes, and Steveniella) of Orchidaceae in Turkey. In the samples, various epidermal features were identified in the spur that developmentally are invaginations of the labellum and the adaxial surface of the labellum. Typical secretory cells and inclusions such as starch or calcium oxalate crystals of different sizes and shapes were found within the structure of individuals. In many genera, characteristically shaped secretory trichomes and papillae were concentrated at the base part close to the gynostemium or the distal part of the labellum and on all surfaces of the spur. In the genus Ophrys, the labellum surface was covered with many hairs. Furthermore, the labellum surface striation varied among the orchid genera. UPGMA of cluster analysis was used to evaluate the morphological and micromorphological features of the labellum and spur among the analyzed taxa. [ABSTRACT FROM AUTHOR]

The seed morphology of six species, representing genera of Hyoscyamus L. (Solanaceae) in Turkey was investigated using a binocular stereomicroscope and scanning electron microscopy (SEM), to determine the significance of seed coat features as taxonomic characters. Macro and micromorphological characters, including seed shape, size, hilum position and character, seed coat appearance, cell shape, sculpture characteristics of cell walls and wall ornemantation are presented. The results indicate that the seed coat sculpture is cerebelloid in H. pussillus and reticulate or reticulate- puzzle in all the remaining species. Two types of testal cells can be identified based on their general shape and linearity of the anticlinal walls. In one type, the cell shape is oblong to subpolygonal, with the anticlinal wall being sinuate to repandate; in the other type, the cell is triangular to subpolygonal, with the anticlinal wall straight or slightly curved. Fine ornamentation of the anticlinal walls of the testal cells varies from smooth to covered with, fibril, punctate or papillate projections. However, the size and shape of seeds and the position of hilum have partly systematic significance. [ABSTRACT FROM AUTHOR]

Herein a new species, Alyssum amasianum, is described and illustrated from North Anatolia. The new species is very similar to A. hirsutum subsp. caespitosum but differs in the shape and indumentum of leaves, trichome type of the fruits, and margin of the seeds. The ecology, biogeography, and conservation status of the new species are discussed. The leaf, fruit, and seed surface micromorphology of A. amasianum, A. hirsutum subsp. caespitosum, A. hirsutum subsp. hirsutum, A. strigosum subsp. strigosum, and A. xanthocarpum were also examined by scanning electron microscope. [ABSTRACT FROM AUTHOR]

The purpose of this study was to describe the distribution and surface structure of the lingual papillary system in four male adult English horses by scanning electron microscopy. The animals were supplied from the Jockey Club of Turkey (TJK). Tissue samples were taken from the dorsal, ventral and lateral surface of the apex, corpus and radix of the tongue. Filiform papillae were distributed mainly on the dorsum, being abundant, very long and with a slim cylindrical form with pointed endings or multi-bifurcated terminations at the apex. These papillae were typically conical in shape with a wider base in the corpus of the lingua and absent on the radix of the lingua. Fungiform papillae were mainly on the lateral surfaces and lobulated forms were also observed. The horses have two large vallate papillae, located on the dorsum close to the caudal part of the tongue. These papillae were surrounded by a prominent gustatory groove. The vallate papillae had many taste pores opening into the papillary groove. The foliate papillae were observed just rostral to the palatoglossal arches. These papillae have many variable sized taste pores which open into the grooves between the papillary leaves. The papillary leaves were covered with concentrically arranged cornified cells of variable appearance. However, there were no lingual papillae on the ventral aspect of the horse's tongue. [ABSTRACT FROM AUTHOR]

Morphological characters of the nutlets ofCyclotrichiumManden. & Scheng. in Turkey were examined using scanning electron microscopy (SEM). The genusCyclotrichiumis represented by six species in Turkey, of which two are endemic for Turkey. Nutlet morphology of the species was studied using stereoscopic microscopy and SEM, and the features were described and illustrated. Nutlet morphology of the examined specimens exhibits some variation in size, shape and sculpture. Nutlets range from 1.1 to 2.0 mm in length and 0.5 to 1.0 mm in width and are elliptic, oblong to ovoid and trigonous in shape. Nutlet sculpture can be divided into two main types: distinctly or weakly reticulate pattern inC. niveum,C. origanifolium,C. longiflorumand rounded cell arrangement in the remaining species. Micromorphological characters could be useful in solving taxonomic problems ofCyclotrichium. [ABSTRACT FROM PUBLISHER]