نتایج جستجو برای: cercospora
تعداد نتایج: 727 فیلتر نتایج به سال:
قارچهای سرکوسپوروئید شامل جنس Cercospora و سایر جنسهای با خصوصیات ریختشناسی مشابه، از بیمارگرهای مهم مولد لکهبرگی روی دامنه وسیعی از میزبانهای گیاهی هستند. به منظور مطالعه تاکسونومی قارچهای سرکوسپوروئید، نمونهها از مناطق مختلف استان مازندران و از میزبانهای مختلف دارای علائم لکهبرگی در فصول بهار تا پاییز سالهای 91-1390 جمعآوری شدند. آرایههای Cercospora hostae(روی <...
لکه برگی سرکوسپورایی چغندرقند با عامل Cercospora beticolaیکی از مهمترین بیماریهای اندامهای هوایی چغندرقند میباشد. با توجه به مشکلات موجود در شناسایی گونههای مختلف Cercospora بر اساس خصوصیات ریختشناسی، در این تحقیق دو مجموعه آغازگرهای اختصاصی طراحی شده بر اساس توالی ژن کالمودولین و اکتین جهت تشخیص مولکولی اینگونه مورد استفاده واقع شد. برای این منظور جدایههای استاندارد <...
Cercosporin is a light-activated, non-host-selective toxin produced by many Cercospora fungal species. In this study, a polyketide synthase gene (CTB1) was functionally identified and molecularly characterized to play a key role in cercosporin biosynthesis by Cercospora nicotianae. We also provide conclusive evidence to confirm the crucial role of cercosporin in fungal pathogenesis. CTB1 encode...
Cercospora leaf spot, caused by Cercospora beticola, is the most damaging foliar disease of sugar beet in Minnesota (MN) and North Dakota (ND). Research was conducted to characterize the temporal progression of aerial concentration of C. beticola conidia in association with the environment and disease severity in sugar beet. In 2003 and 2004, volumetric spore traps were placed within inoculated...
in this paper the taxonomy of some previously reported taxa as cercospora apii s.lat. in iran, is discussed and some new records are listed. cercospora species on abelia grandiflora (c. deutziae), erythrina crista-galli (c. erythrinicola), euphorbia heterophylla (c. pulcherrimae) and zanthedeschia aethiopica (c. richardiicola) are new for mycobiota of iran. cercospora iridis which was previousl...
to evaluate general and specific combining ability for resistance to bolting and cercospora leaf spot, 36 hybrids derived from crosses between 9 sugar beet lines along with four checks were planted in safiabad agricultural research center (dezful) in 2008-2009. the experimental design was a triple lattice design with three replications. analysis of variance showed significant differences among ...
Cercospora leaf spot (CLS), caused by the fungus Cercospora beticola (Sacc.), is the most destructive foliar pathogen of sugarbeet worldwide. Control measures include the use of resistant varieties and crop rotation, but timely fungicide applications are essential for CLS management. Resistance to sterol demethylation inhibitor (DMI) fungicides (FRAC group 3) has been increasing in C. beticola ...
in this study, cercospora sp.on olea europaea and pseudocercospora mori on morus alba are being recorded from iran. moreover, new reports were provided for cercospora apii s.l. (including c. canescens,c. citrullina, c. morina, c. sonchi, c. cruciferarumand c. helianthicola), and pseudocercospora rubi. also, helianthus sp., morus alba,raphanus sp. and taraxacum sp. are reported as new hosts forc...
Eight species of the genus Cercospora from different localities in Northern provinces of Iran were obtained and examined during spring-autumn 2010. Cercospora acnidae (from Amaranthus chlorostachys var. chlorostachys), C. beticola (from Beta vulgaris), C. iridis (from Iris sp.), C. lactucae-sativae (from Lactuca sativa), C. mercurialis (from Mercurialis annua), C. sorghi (from Sorghum halepense...
Cercospora cf. sigesbeckiae is an ascomycete fungal pathogen that infects various plants, including important agricultural commodities, such as soybean. Here, we report the first draft genome sequence and assembly of this pathogen.
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