نتایج جستجو برای: erysiphe betae on dysphania ambrosioides
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در این مطالعه 105 جدایه قارچ عامل سفیدک سطحی چغندرقند از مناطق مختلف کشور جمعﺁوری و مورد بررسی قرار گرفت.استخراج DNA از آسکوکارپﻫا با استفاده از محلول پنج درصد Chelex100 انجام شد.نواحی فاصلهﺳاز بین ژنﻫای ریبوزومی به همراه قطعه S 8/5 توسط آغازگرهایITS1وITS4 از طریق واکنش زنجیره ای پلیمراز تکثیر شده و روی آگارز 5/1 درصد ارزیابی گردیدند.محصول PCRتمام جدایهﻫا شامل یک قطعه با بزرگی 645 جفت بازی ب...
Strains representing the taxa Curtobacterium, Brevibacterium saperdae, B. testaceum, Corynebacterium betae, Cor. nebraskense and Cor. oortii were degraded by acid methanolysis and the non-hydroxylated fatty acid esters released were examined by thin-layer and gas-liquid chromatography. The major fatty acids in all strains were 12-methyltetradecanoic (anteiso C15) and 14-methylhexadecanoic (ante...
Understanding the molecular basis of plant resistance to fungal diseases will contribute to reducing world-wide crop losses. One model organism for studying disease resistance is Arabidopsis thaliana, a small member of the mustard family for which complete genomic sequence information was publicly released in 2000. Erysiphe cichoracearum, the causative agent for powdery mildew disease in a wide...
members of erysiphales cause powdery mildew diseases on wide host rang and produce whitish primary mycelium on surface of infected parts. based on microscopic study of one specimen on jasminum sp., structures of fungus including conidiophores and conidia were observed. foot cells of conidiophores were cylindrical or curved in basal part, followed by 1-2 shorter cells. conidia were ellipsoid to ...
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