Search

Last two decades, a very large group of organisms, including flowering plants, non-flowering plant groups, fungi, algae, and cyanobacteria have been researched medically, the effects of these organisms against pathogenic microorganisms have been examined and remarkable results have been obtained. The bryophytes that constitute our research topic are the second largest group of the plant represented by approximately 1030 taxa in our country. Especially in recent years, besides the systematic studies, there is a significant increase in the studies carried out on phytosociology, ecology, molecular taxonomy, and medicinal properties. It has been found that extracts prepared from bryophytes are antimicrobial effective against some Gram (-) and Gram (+) bacteria species. Therefore, the antimicrobial effect of two different mosses belonging to the genus Sphagnum (Sphagnopsida) which are S.centrale and S.nemoreum on various Gram (-) and Gram (+) bacteria were investigated. The effect of different extracts obtained from two Sphagnum species on these organisms was checked by selecting the bacteria which are important for food safety and clinically important groups. It was determined that extracts obtained from both mosses were effective on Listeria monocytogenes and L. innocua strains, while Sphagnum nemoreum extracts were also effective on Staphylococcus aureus. [ABSTRACT FROM AUTHOR]

Chemical compositions of the essential oil of Sedum pallidum Bieb. var. bithynicum (Boiss.) and S. spurium Bieb. (Crassulaceae) from Turkey were investigated by GC-MS, and antimicrobial activity of the oil samples were assessed against Gram-positive/negative bacteria and yeast-like fungi. Thirty-eight and thirty-five components were identified in the essential oils and the main components of these species were found to be caryophyllene oxide from S. pallidum var. bithynicum and hexahydrofarnesyl acetone from S. spurium in the ratios of 12.8% and 15.7%, respectively. The isolated essential oils of the plants showed low antimicrobial activity against Gram-negative/positive bacteria and yeast-like fungi, having the MIC values of 500-2000 μg/mL. Antibacterial activity was not observed against Bacillus cereus. [ABSTRACT FROM AUTHOR]

Environmental conditions affect human life in various ways. One of the domains of environmental conditions is buildings, and amongst them, a major and important group is the historical buildings. To keep this inheritance alive, one needs to determine the effects of environmental conditions. In this work, effects of lichens and NOx on 7 historical buildings in Erzurum were investigated. Historical buildings are readily available for lichen growth, which takes a long time, and this growth was investigated as a sample of environmental effect that occurs through long periods of time. NOx, main source of which is traffic in Erzurum, were considered as the environmental effect of daily life. [ABSTRACT FROM AUTHOR]

Herein 152 taxa of lichens and lichenicolous fungi belonging to 68 genera are reported from Kizildag (Derebucak district, Konya province). Of these, 149 taxa are reported from the study area for the first time and 96 taxa are new for Konya province. Lecanora perpruinosa Fröberg and Toninia submexicana de Lesd. are new records for Turkey and Asia. [ABSTRACT FROM AUTHOR]

Abstract: Twenty-one years after the Chernobyl accident, lichen and moss samples were collected from the Ordu province, which was already chosen for a related study some years ago. It was observed that 137Cs activity concentration ranged from 31 to 469 Bq kg−1 in the moss and from 132 to 1508 Bq kg−1 in the lichen samples. The decrease of the activity concentrations in the present measurements (2007) relative to those in 1997 (over a period of 10 y) indicated ecological half-lives between 1.8 and 10.4 y for the moss and between 2.1 and 13.7 y for the lichen samples. It was observed that 137Cs was still eminent in the area studied. Moreover, 40K activity concentrations and K element concentrations were measured and their relationships were discussed. [Copyright &y& Elsevier]

The lichen diversity of the Maslak Campus of İstanbul Technical University is presented in this study. In total, 23 lichen species belonging to 14 genera were recorded. Strangospora pinicola (A.Massal.) Körb. is a new record for the Turkish lichen flora and 5 species are new records for İstanbul province. [ABSTRACT FROM AUTHOR]

A list of 89 lichen taxa is reported from the provinces of Afyonkarahisar and Isparta. Fifteen taxa from Afyonkarahisar and 38 from Isparta are new records for these provinces. [ABSTRACT FROM AUTHOR]

Seventy-three taxa belonging to 27 genera are reported from Şirvan Mountain (Kayseri). All of these taxa are new records for the study area. Of these, 31 taxa are reported for the first time from the province of Kayseri, and 3 taxa, Caloplaca epiphyta Lynge, Lecanora hagenii(Ach.) Ach. var. fallaxHepp and Sarcogyne regularisKörb. var. platycarpoides(Anzi) N.S.Golubk., are new records for Turkey. [ABSTRACT FROM AUTHOR]

One hundred and six lichen taxa are reported from the city of Giresun and Giresun Island, Turkey. One of these, Phaeographis dendritica (Ach.) Müll.Arg., is new to Turkey. [ABSTRACT FROM AUTHOR]

Macrofungi samples recorded in this study were collected from different localities in Balýkesir province from 1998 to 2001. As a result of the field and laboratory studies, 4 taxa belonging to 4 families were recorded for the first time in Turkey. These are Hebeloma mesophaeum (Pers.) Fr. var. lacteum Vesterh., Lepiota griseovirens Maire, Lactarius violascens (J.Otto) Fr., and Melanoleuca griseofumosa Secr. ex Singer & Clémençon. [ABSTRACT FROM AUTHOR]

The thalloid liverwort Preissia quadrata is reported as a new record for the liverwort flora of Turkey. The species was collected in the Ilgaz Mts, about 8 kilometers northeast of the Ilgaz Mountain National Park. A detailed morphological description and ecological notes are provided. [ABSTRACT FROM AUTHOR]