نتایج جستجو برای: rhizoctonia solani ag
تعداد نتایج: 47855 فیلتر نتایج به سال:
Ninety seven Rhizoctonia isolates were collected from different Brassica species with typical Rhizoctonia symptoms in different provinces of Vietnam. The isolates were identified using staining of nuclei and sequencing of the rDNA-ITS barcoding gene. The majority of the isolates were multinucleate R. solani and four isolates were binucleate Rhizoctonia belonging to anastomosis groups (AGs) AG-A...
Rhizoctonia stem canker and black scurf diseases of potato are caused by the fungus Rhizoctonia solani Kühn (teleomorph Thanatephorus cucumeris [A. B. Frank] Donk) and can be found on all underground parts of the plant at various times during the growing season. Rhizoctonia solani (Deuteromycetes, Mycelia Sterilia) is a species complex of 13 anastomosis groups (AGs), which are categorized accor...
This study aimed at evaluating the ability of SL-44 to control Rhizoctonia solani and promote pepper (Capsicum annuum) growth. Strain SL-44 was isolated from plant rhizosphere and the pot experiment results indicated that the dry and fresh weights of pepper in SL-44 and Rhizoctonia solani (S-R) treatment were 45.5% and 54.2% higher than those in Rhizoctonia solani (R) treatment and 18.2% and 31...
نمونهبرداری طی اردیبهشت 1390 تا شهریور 1391از خاک نواحی گلکاری شده شهر شیراز انجام شد.نمونههای خاک پس از خشک شدن کامل از الک 2 میلیمتری عبور داده شدند. سپس با روش طعمهگذاریبا بذر چغندر قند 27 جدایه Rhizoctonia از خاک جداسازی شد که 20 جدایه مربوط به Rhizoctonia solani و هفت جدایه مربوط به Rhizoctonia sp. دو هستهای بود. گروه آناستوموزی جدایههای R. solani</e...
A rapid identification assay for Waitea circinata (anamorph: Rhizoctonia spp.) varieties zeae and circinata causing patch diseases on turfgrasses was developed based on the universally primed PCR (UP-PCR) products cross-blot hybridization. Tester isolates belonging to the two varieties of W. circinata were amplified with a single UP primer L21, which generated multiple DNA fragments for each va...
Rhizoctonia solani is a causative agent of sheath blight, which results in huge economic losses every year. During its life cycle, the formation of sclerotia helps Rhizoctonia solani withstand a variety of unfavorable factors. Oxidative stress is a key factor that induces sclerotium formation. The differentiated and undifferentiated phenotypes of R. solani AG-1-IA were obtained by controlling a...
Pathogenicity and anastomosis groups of seven Rhizoctonia-like isolates obtained from infected pistachio (Pistacia vera L.) seedlings were determined, in the central district Siirt province at Southeast Anatolia Region Turkey. Browning on crown root collected saplings drying plants observed. In pathogenicity test, most virulent isolate was Rs2 with a disease severity 93.75%. The group this isol...
نمونه برداری طی اردیبهشت 1390 تا شهریور 1391از خاک نواحی گل کاری شده شهر شیراز انجام شد.نمونه های خاک پس از خشک شدن کامل از الک 2 میلیمتری عبور داده شدند. سپس با روش طعمه گذاری با بذر چغندر قند 27 جدایه rhizoctonia از خاک جداسازی شد که 20 جدایه مربوط به rhizoctonia solani و هفت جدایه مربوط به rhizoctonia sp. دو هسته ای بود. گروه آناستوموزی جدایه های r. solani جداسازی شده از خاک ag2 (شش جدایه)، ...
در تابستان 1377 و 78، در یک باغ مرکبات واقع در منطقه بابلکنار در جنوب شهرستان بابل، علایم بیماری لکه قهوهای یا سوختگی ریزوکتونیایی بر روی یک گراس وحشی به نام اِلنا یا ارزن جنگلی (oplismenus hirtellus) مشاهده گردید. علایم بیماری شامل لکههای تقریباً مدور با قطر متوسط 20 تا 100 سانتیمتر بود که در آن لکه، تمام گیاهان موجود پس از نشان دادن لکههای سوخته کوچک روی برگ و غلاف، بهگونه کامل سوخته و خش...
Rhizoctonia solani anastomosis group AG2-2 IIIB is a severe sugar beet and maize pathogen. It causes crown and root rot disease which le ads to y ield losses world-wide. The soil-borne pathogen is d ifficult to detec t and quantify by conventional methods. We developed a real-time PCR (qPCR) assay for the quantification of genomic DNA of Rhizoctonia solani AG2-2 IIIB based on the ITS region of ...
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