نتایج جستجو برای: rhizoctonia spp
تعداد نتایج: 53359 فیلتر نتایج به سال:
During late August and early September 2011, stem rot symptoms were observed on adzuki bean plants (Vigna angularis) growing in fields located in Beijing and Hebei Province, China, respectively. In this study, four isolates were obtained from infected stems of adzuki bean plants. Based on their morphology, and sequence and polymerase chain reaction-restriction fragment length polymorphism (PCR-...
A series of novel fused heterocyclic compounds bearing benzo[4,5]imidazo[1,2-d][1,2,4]triazine 4a-4w were designed and conveniently synthesized via the intermediates 2-(halogenated alkyl)-1H-benzo[d]imidazoles 2a, 2b, and 2-((1-(substituted phenyl)hydrazinyl)alkyl)-1H-benzo[d]imidazoles 3a-3g. The structures of all target compounds were characterized by FT-IR, ¹H NMR, 13C NMR, and EI-MS, of whi...
Abstract Background Soil-borne plant pathogenic fungi with a wide host range of crops cause significant limitation on the global production agronomic crops. Applications synthetic pesticides are an important tool for managing diseases, but have deleterious influences environment as well its incompatibility organic agriculture. Recently, Streptomyces spp. became one best bio-control agents promi...
در تحقیق حاضر، اثرات آنتاگونیستی جدایه های spp. rhizobium علیه قارچ (ag-4) rhizoctonia solani عامل مرگ گیاهچه لوبیا، تحت شرایط آزمایشگاه و گلخانه با یکدیگر مقایسه شد و توانایی آنها در تولید متابولیت های ثانویه ضد قارچی از جمله هیدروژن سیانید، سیدروفور و پروتئاز بررسی گردید. نتایج نشان داد که جدایه rh3در بازدارندگی از رشد قارچ بیشترین تأثیر را در شرایط آزمایشگاهی داشت. جدایه های rh4، rh3)، (rh6 ...
Known or suspected intermediates in the biosynthesis of slaframine and 3,4,5-trihydroxyoctahydro-1pyrindine, piperidine alkaloids of the phytopathogenic fungus Rhizoctonia leguminicola, were prepared and tested for biological conversions. Ethyl pipecolylacetate, an analogue of the postulated condensation product of pipecolic and malonic acids (two previously identified alkaloid precursors), was...
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