نتایج جستجو برای: phoma betae
تعداد نتایج: 847 فیلتر نتایج به سال:
Minute 3. New taxa. New taxa described since the last meeting on 4 July 2001 are Bradyrhizobium yuanmingense Yao et al. [Int J Syst Evol Microbiol 52 (2002), 2219–2230], Bradyrhizobium betae Rivas et al. [Int J Syst Evol Microbiol 54 (2004), 1271–1275], Rhizobium indigoferae Wei et al. [Int J Syst Evol Microbiol 52 (2002), 2231–2239], Rhizobium loessense Wei et al. [Int J Syst Evol Microbiol 53...
In this research,for taxonomic studies and identification of the fungi associated with the powdery mildew(Oidium euonymi- japonici) of Buxus trees (Euonymus japonica), the infected leaves were collected during autumn and winter 2012-2013 in Gorgan (Golestan province -Iran). The samples after washing and surface sterilizing, were cultured on PDA medium(with boxwood extract).Then based on availab...
Two new polyketides, arthropsadiol C (1) and massarilactone H (2), together with six known derivatives (3-8) were isolated from the culture broth of the marine-derived fungus Phoma herbarum. Their structures were elucidated on the basis of spectroscopic methods, including 2D NMR techniques. Compounds 2, 4, 5, and 8 showed moderate neuraminidase inhibitory activity with IC(50) values ranging fro...
Through our screening for novel antifungal compounds, YM-215343 was found in the culture extract of Phoma sp. QN04621. The structure of YM-215343 was determined by several spectroscopic experiments as a novel compound closely related to apiosporamide and fischerin. YM-215343 exhibited antifungal activity against the pathogenic fungi, Candida albicans, Cryptococcus neoformans and Aspergillus fum...
Incorporation of [l3C,2H3-CHs]-L-methionine into cytochala-: sin A (I), cytochalasin B (II), proxiphomin (III) and protophomin (IV) by Phoma exiqua var. exiqua demonstrated that the two C-methylations occur with retention of all three H-atoms of the methyl group. Conclusions are drawn concerning the stage of the methylation reaction during the biogenetic pathway. On the basis of the results amo...
بیماری سفیدک پودری یک بیماری قارچی است که هرساله در بیشتر مزارع چغندرقند کشورآلودگی ایجاد کرده و باعث افت عملکرد ریشه ودرصدقند دراین مزارع می گردد. هدف این تحقیق تعیین تاثیرروش های مختلف آبیاری برشدت آلودگی بیماری سفیدک پودری چغندرقند بود. به همین منظور هشت رقم تجارتی حساس ومقاوم چغندرقند به سفیدک پودری تحت دو روش آبیاری بارانی ونشتی طی دوسال (1391 و 1390) و در قالب طرح بلوک های کامل تصادفی با ...
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