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Fusarium chuoi R. Hill, Gaya, D.T. Vu, Sand.-Den. & Crous, sp. nov. Etymology. From chu���i, Vietnamese vernacular name for Musa spp., from which the ex-type strain was isolated. Classification ��� Nectriaceae, Hypocreales, Sordariomycetes. On SNA and CLA, sporulation abundant from aerial conidiophores and sporodochia. Aerial conidiophores erect or prostrate, copiously branching laterally and sympodially, giving rise to macro-, and rarely, microconidia; aerial conidiogenous cells mono- and polyphialidic, subulate to subcylindrical, smooth- and thin-walled, proliferating sympodially, 6.5���40.5 �� 2.5���4 ��m, with apical flared collarette and periclinal thickening; aerial conidia of two types: microconidia often produced on prostrate conidiophores, rarely on aerial mycelium, aggregating in false heads, ellipsoidal, subcylindrical to slightly falcate, 0 ���1-septate, 8���15 �� 2���29.5 ��m; macroconidia fusiform to falcate, straight to apically dorsiventrally curved, apex curved to pointed, base obtuse to papillate, 1���3-septate, smooth- and thin-walled; 1-septate conidia: (14���)18���27.5(���29.5) �� (2.5���)3���4 ��m (av. 22.8 �� 3.2 ��m); 2-septate conidia: 26���28.5 �� 3���4 ��m (av. 27.4 �� 3.6 ��m); 3-septate conidia: (28���)31.5���43(���50.5) �� 3���4 ��m (av. 37.3 �� 3.5 ��m). Sporodochia saffron, luteous to ochreous coloured (Rayner 1970), formed abundantly on the agar surface and carnation leaves under nuv. Conidiophores in sporodochia, densely and irregularly branched, bearing apical whorls of 2 ��� 4 monophialides; sporodochial monophialides subcylindrical, 10���26 �� 2.5���4.5 ��m, smooth- and thin-walled, with a distinct apical collarette. Sporodochial conidia (macroconidia) falcate, almost straight to gently curved, tapering at both ends, apex curved to blunt, base poorly- to well-developed foot-shaped, 1���6-septate, hyaline, smooth- and thin-walled; 1-septate conidia: (14.5���)15���20.5(���24) �� 3���4.5 ��m (av. 17.9 �� 3.9 ��m); 2-septate conidia: 21.5���32 �� 3���4.5 ��m (av. 26.4 �� 3.5 ��m); 3-septate conidia: (33���)43���61(���71.5) �� (3���)4���5 ��m (av. 51.8 �� 4.2 ��m); 4-septate conidia: (50.5���)55���69(���74.5) �� 3.5���5 ��m (av. 62.3 �� 4.2 ��m); 5-septate conidia: 54 �� 4.5 ��m (rare); 6-septate conidia: (49.5���)56.5���71(���73) �� (3.5���)4���4.5(���5) ��m (av. 63.8 �� 4.3 ��m). Chlamydospores not observed. Culture characteristics ��� Colonies on potato dextrose agar (PDA) and oatmeal agar (OA) growing in the dark at 24 �� C covering and entire 9 cm Petri dish in 7 d. Colony surface peach to vinaceous, flat, velvety to felty with abundant floccose aerial mycelium forming concentric rings; colony margins undulate. Reverse flesh to salmon with diffuse coral to brick pigment throughout the medium. Typus. VIETNAM, H�� Tĩnh Province, H����ng S��n District,S��n Kim commune, N18��25'37.38" E105��12'53.95", inside seed of Musa itinerans (Musaceae), 9 Nov. 2014, D.M. Thu, L.T. Phong & T.T. Duong, isol. R. Hill (holotype CBS H-24901,culture ex-type CBS 148464; ITS, LSU, cmdA, rpb1, rpb2, tef1 and tub2 sequences GenBank OK586454, OK586452, OK626304, OK626306, OK626302, OK626308 and OK626310, MycoBank MB 841865). Colour illustrations. Flowers, fruits, leaves and seeds of Musa itinerans (background photo by D. T. Vu); from top to bottom and left to right: colony on PDA after 14 d at 24 �� C in darkness (left = obverse,right = reverse), sporodochia formed on CLA,aerial conidiophore,aerial conidiogenous cells,aerial conidia, sporodochial conidia. Scale bars: black = 20 ��m, white = 10 ��m. Additional material examined. VIETNAM, Ngh��� An Province, Con Cu��ng District, Ch��u Kh�� commune, N19��1'48.73" E104��43'31.97", inside seed of M. itinerans, 18 Nov. 2014, L.T. Phong, V.V. Tung & T.T. Duong, isol. R. Hill (culture CBS 148465; ITS, LSU, cmdA, rpb1, rpb2, tef1 and tub2 sequences GenBank OK586455, OK586453, OK626305, OK626307, OK626303, OK626309 and OK626311). Notes ��� Fusarium chuoi resides in the Asian clade of the Fusarium fujikuroi species complex (FFSC: O���Donnell et al. 1998, Yilmaz et al. 2021, Crous et al. 2021b). Based on nucleotide searches using the Fusarium Pairwise ID engine on the Fusarioid-ID database (www.fusarium.org, Crous et al. 2021) the closest hit using the ITS sequence was Fusarium siculi (strain CBS 142422; identities = 449/450 (99 %), no gaps). The closest hit using the LSU sequence was F. siculi (strain CBS 142422; identities = 804/805 (99 %), no gaps). Closest hit using the cmdA sequence was Fusarium fractiflexum (strain NRRL 28852; identities = 426/434 (98 %), no gaps). Closest hit using the rpb1 sequence was F. fujikuroi (strain NRRL 13566; identities = 687/702 (98 %), no gaps). Closest hit using the rpb2 sequence was Fusarium globosum (strain CBS 428.97; identities = 856/867 (98 %), no gaps). Closest hit using the tef1 sequence was F. fractiflexum (strain NRRL 28852; identities = 619/643 (96 %), 2 gaps (0.3 %)). The phylogenetic results, however, showed that F. chuoi is not directly related to any of the previously described species of FFSC (see Suppl. material FP1353), clustering as the second basal-most species of that clade after F. sacchari. Asian Fusarium spp. in the FFSC are characterised by mono-and polyphialides producing oval to ellipsoid, rarely pyriform to globose (i.e., F. annulatum, F. fujikuroi and F. globosum) microconidia organized in chains or false heads; 3���5-septate sporodochial conidia and lacking chlamydospores. The elaborate, profusely branched aerial conidiophores of F. chuoi are comparable to those of F. concentricum, F. lumajangense, F. mangiferae and F. sacchari, all the latter species producing oval, ellipsoidal to allantoid microconidia on false heads.Aerial conidiophores of F. chuoi, however, mostly produce macroconidia, while microconidia grouped on false heads are restricted to short, mostly unbranched and prostrate conidiophores formed on the surface on the culture media. Several Asian species of the FFSC have been reported from Musa spp. i.e., F. annulatum, F. concentricum, F. fujikuroi, F. lumajangense and F. sacchari (Leslie & Summerell 2006, Maryani et al. 2019, Farr & Rossman 2021). The two strains representing F. chuoi were isolated as endophytes from asymptomatic seeds of wild banana (Musa itinerans), which had been collected predispersal and stored in the Millennium Seed Bank for ~2.5 years at -20 �� C prior to isolation. Supplementary material FP1353 Phylogenetic tree., Published as part of Crous, P. W., Osieck, E. R., Jurjevi, ��, Boers, J., Van Iperen, A. L., Starink-Willemse, M., Dima, B., Balashov, S., Bulgakov, T. S., Johnston, P. R., Morozova, O. V., Pinruan, U., Sommai, S., Alvarado, P., Decock, C. A., Lebel, T., McMullan-Fisher, S., Moreno, G., Shivas, R. G., Zhao, L., Abdollahzadeh, J., Abrinbana, M., Ageev, D. V., Akhmetova, G., Alexandrova, A. V., Alt��s, A., Amaral, A. G. G., Angelini, C., Anton��n, V., Arenas, F., Asselman, P., Badali, F., Baghela, A., Ba��ares, A., Barreto, R. W., Baseia, I. G., Bellanger, J. - M., Berraf-Tebbal, A., Biketova, A. Yu., Bukharova, N. V., Burgess, T. I., Cabero, J., C��mara, M. P. S., Cano-Lira, J. F., Ceryngier, P., Ch��vez, R., Cowan, D. A., de Lima, A. F., Oliveira, R. L., Denman, S., Dang, Q. N., Dovana, F., Duarte, I. G., Eichmeier, A., Erhard, A., Esteve-Ravent��s, F., Fellin, A., Ferisin, G., Ferreira, R. J., Ferrer, A., Finy, P., Gaya, E., Geering, A. D. W., Gil-Dur��n, C., Gl��ssnerov��, K., Glushakova, A. M., Gramaje, D., Guard, F. E., Guarnizo, A. L., Haelewaters, D., Halling, R. E., Hill, R., Hirooka, Y., Hubka, V., Iliushin, V. A., Ivanova, D. D., Ivanushkina, N. E., Jangsantear, P., Justo, A., Kachalkin, A. V., Kato, S., Khamsuntorn, P., Kirtsideli, I. Y., Knapp, D. G., Kochkina, G. A., Koukol, O., Kov��cs, G. M., Kruse, J., Kumar, T. K. A., Ku��an, I., L��ss��e, T., Larsson, E., Lebeuf, R., Levic��n, G., Loizides, M., Marinho, P., Luangsa-ard, J. J., Lukina, E. G., Maga��a-Due��as, V., Maggs-K��lling, G., Malysheva, E. F., Malysheva, V. F., Mart��n, B., Mart��n, M. P., Mato��ec, N., McTaggart, A. R., Mehrabi-Koushki, M., Me��i��, A., Miller, A. N., Mironova, P., Moreau, P. - A., Morte, A., M��ller, K., Nagy, L. G., Nanu, S., Navarro-R��denas, A., Nel, W. J., Nguyen, T. H., N��brega, T. F., Noordeloos, M. E., Olariaga, I., Overton, B. E., Ozerskaya, S. M., Palani, P., Pancorbo, F., Papp, V., Paw��owska, J., Pham, T. Q., Phosri, C., Popov, E. S., Portugal, A., Po��ta, A., Reschke, K., Reul, M., Ricci, G. M., Rodr��guez, A., Romanowski, J., Ruchikachorn, N., Saar, I., Safi, A., Sakolrak, B., Salzmann, F., Sandoval-Denis, M., Sangwichein, E., Sanhueza, L., Sato, T., Sastoque, A., Senn-Irlet, B., Shibata, A., Siepe, K., Somrithipol, S., Spetik, M., Sridhar, P., Stchigel, A. M., Stuskova, K., Suwannasai, N., Tan, Y. P., Thangavel, R., Tiago, I., Tiwari, S., Tkal��ec, Z., Tomashevskaya, M. A., Tonegawa, C., Tran, H. X., Tran, N. T., Trov��o, J., Trubitsyn, V. E., Van Wyk, J., Vieira, W. A. S., Vila, J., Visagie, C. M., Vizzini, A., Volobuev, S. V., Vu, D. T., Wangsawat, N., Yaguchi, T., Ercole, E., Ferreira, B. W., de Souza, A. P., Vieira, B. S. & Groenewald, J. Z., 2021, Fusarium chuoi R. Hill, Gaya, D. T. Vu, Sand. - Den. & Crous, R. Hill, Gaya, D. T. Vu, Sand. - Den. & Crous sp. nov., pp. 310-311 in Fungal Planet 47 (1) on page 311, DOI: 10.5281/zenodo.5856199, {"references":["Rayner RW. 1970. A Mycological Colour Chart. Commonwealth Mycological Institute, Kew and British Mycological Society.","O'Donnell K, Cigelnik E, Nirenberg H. 1998. Molecular systematics and phylogeography of the Gibberella fujikuroi species complex. Mycologia 90: 465 - 493.","Yilmaz N, Sandoval-Denis M, Lombard L, et al. 2021. Redefining species limits in the Fusarium fujikuroi species complex. Persoonia 46: 129 - 162.","Crous PW, Lombard L, Sandoval-Denis M, et al. 2021 b. Fusarium: more than a node or a foot-shaped basal cell. Studies in Mycology 98: 100116.","Crous PW, Cowan DA, Maggs-Kolling G, et al. 2021 a. Fungal Planet descrip- tion sheets: 1182 - 1283. Persoonia 46: 313 - 528.","Leslie JF, Summerell BA. 2006. 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Early detection and control of animal diseases through efficient surveillance system is critical to sustain livelihoods of farmers and prevent emergence and re-emergence of human pathogens adapted from animals. Most animal health programs relies on data generated by national surveillance systems. The effectiveness of most surveillance system remains limited especially in low-income countries. Many socio-cultural, economical and political factors can affect the performance and costs of surveillance systems and therefore the value or at least the " perceived value " of animal health information. Studies have been implemented in South East Asia and in Europe to better understand local socio-economic constraints impairing animal health surveillance performances.. All the studies used common evaluation tools based on participatory approaches and contingent valuation method to assess the non-monetary benefits, i.e., the value of sanitary information. Farmers are facing several options besides reporting: treatment, sale or destruction of animals. Reporting is often associated with lots of uncertainty regarding outcomes and transaction costs as the release of health information induces market price drops. Low acceptability of the surveillance system linked to social costs such as stigmatization and stress is a major issue for disease reporting. The ability to sell or trade sick animals reduces dramatically surveillance benefits, especially under high uncertainty of compensation and treatment. All the studies provided evidence that local constraints not only linked to technical and epidemiological issues but also to socio, cultural and economical aspects have a strong impact on the value of animal health information. Such data are critical to better inform decision-making and ensure efficacy of new surveillance or improved surveillance designed. This work also demonstrates the added value of participatory approaches in the evaluation process.

Purpose : vaccination against avian influenza (AI) is currently applied worldwide with inactivated vaccines. Since November 2012, a novel recombinant HVT-AIH5 (Herpes virus of turkeys vector) vaccine has been commercialized and applied to day-old chicks (DOC) in Egypt and in Bangladesh. The objectives of this study were to assess the cost-effectiveness of AI DOC vaccination in hatcheries and the feasibility of implementing AI DOC vaccination in the different production sectors in HPAI H5N1 endemic countries. Methods: For each country, a model of the poultry production network was combined with a model of flock immunity to simulate the distribution profile of AI immunity according to different vaccination scenarios (including DOC vaccination or not). The model estimates the vaccine coverage rate, positive sero-conversion levels and the duration of sero-protection for each network node. Economic evaluation of the different strategies was performed using cost-effectiveness analysis, spatial analysis was performed to account for spatial clustering of the different poultry production types. Results: In all study areas the model predicted that targeting DOC AI vaccination in industrial and large size hatcheries would increase immunity levels in the overall poultry population and especially in small commercial poultry farms. The level of improvement and best scenario was variable according to the specificity of each production networks. DOC vaccination strategy was shown to be more efficient than the current strategy using inactivated vaccines. Conclusion: This study demonstrated the interest of combining network analysis and immunity modelling to assess the efficacy of AI vaccination scenarios. The model predicted that targeting DOC AI vaccination would increase immunity levels in the overall poultry population up to sufficient levels to improve HPAI disease control. Relevance: Improving HPAI control in commercila poultry sector could have positive spill over effect on the epidemiological situation of the disease in backyard poultry. This model could be applied for strategic management of other contagious diseases such as Newcastle Diseases. (Texte intégral)

Надання гарантій безпеки - одна з основних проблем сучасних хмарних обчислень. Саме відсутність достатніх гарантій безпеки стає основним стримуючим фактором при переході в «хмару». Стаття присвячена підтримці безпеки cloud computing на рівні інфраструктури. Розглядаються основні загрози безпеки хмарних обчислень разом зі структурою типової хмарної системи. Наведено типові рішення даних проблем, а також переваги і недоліки кожного рішення. Побудована таблиця покриття задач підтримки безпеки розглянутими раніше методами. Визначено, що дані рішення окремо не забезпечують повноцінне покриття задач підтримки безпеки cloud computing. Описана узагальнена модель підтримки безпеки cloud систем на рівні інфраструктури. Окреслено можливі перспективи даної моделі та шляхи її подальшого розвитку. Providing secure is an important component of cloud computing. Furthermore, the lack of sufficient security is a main constraint to move to the “cloud”. The article is devoted to the security maintenance of cloud computing at the infrastructure level. The authors consider the main cloud computing security threats. The typical structure of cloud systems is shown. The article explains the existing methods to solve these problems with their pros and cons. A table covering the security maintenance tasks by the discussed earlier methods is built. It was determined that each solution is aimed at solving the particular tasks. The generalized cloud security maintenance model at the infrastructure level is described. The paper considers the prospects for further development of the proposed model. Обеспечение безопасности – одна из основных проблем современных облачных вычислений. Именно отсутствие достаточных гарантий безопасности становится основным сдерживающим фактором при переходе в «облако». Статья посвящена поддержке безопасности cloud computing на уровне инфраструктуры. Рассматриваются основные угрозы безопасности облачных вычислений совместно со структурой типичной облачной системы. Приведены типовые решения данных проблем, а также преимущества и недостатки каждого решения. Построена таблица покрытия задач поддержки безопасности рассмотренными ранее методами. Определенно, что данные решения по-отдельности не обеспечивают полноценное покрытие задач поддержки безопасности cloud computing. Описана обобщенная модель поддержки безопасности cloud систем на уровне инфраструктуры. Очерчены возможные перспективы данной модели и пути ее дальнейшего развития.

Publication in the conference proceedings of EUSIPCO, Aalborg, Denmark, 2010