نتایج جستجو برای: fusarium oxysporum fsp melonis
تعداد نتایج: 15363 فیلتر نتایج به سال:
ژنهای اثرگذار (effector genes) نقش کلیدی را در برهم کنش میان بیمارگر و گیاه ایفا می کنند. جستجوی همولوگ ژنهای اثرگذار از زمان گزارش تعدادی از این ژنهای در فرم اختصاصی fusarium oxysporum f. sp. lycopersici (fol) در دیگر فرم های اختصاصی آغاز شده است. اخیراً، با بهره گیری از روش های مبتنی بر بیوانفورماتیک همولوگ ژن اثرگذار fol-six1 از فرم اختصاصیfusarium oxysporum f. sp. melonis (fom) گزارش شده ...
this study was carried out to identify fusarium species associated with sugar beet root rot and yellows. pathogenicity of fusarium oxysporum, the causal agent of fusariumyellows of sugar beet was also investigated. samples of infected roots were collected from fields in major sugar beet producing areas in khorasan province during 1999-2000. infected roots were washed, surface sterilised and pla...
ABSTRACT An epidemic of vascular wilt caused by Fusarium oxysporum f. sp. erythroxyli is currently occurring on Erythroxylum coca var. coca in the coca-growing regions of the Huallaga Valley in Peru. Random amplified polymorphic DNA (RAPD) analysis of isolates of the pathogen was undertaken to elucidate its genetic complexity, as well as to identify a specific DNA fingerprint for the pathogen. ...
This paper presents for the first time the isolation of Fusarium oxysporum from the toenails of a man from Tehran. The fungus was demonstrated in KOH mounts and was isolated repeatedly from his nail scrapings over a 2 month period. Published reviews on onychomycosis in Iran have not revealed any cases of white superficial onychomycosis due to Fusarium oxysporum to date
BACKGROUND To characterize Fusarium isolates from recent cases of fungal keratitis in contact lens wearers, and to investigate fungal association with MoistureLoc solution. METHODS We studied six fungal isolates from recent cases of keratitis in New York State. The isolates were characterized by nucleotide sequencing and phylogenetic analyses of multiple genes, and then typed using minisatell...
The MICs and minimum fungicidal concentrations of amphotericin B, natamycin, miconazole, itraconazole, and flucytosine against 17 isolates of Fusarium solani, 14 isolates of Fusarium moniliforme, 10 isolates of Fusarium oxysporum, and 3 isolates of Fusarium semitectum were determined by a broth microdilution method. Amphotericin B and natamycin were the most active agents tested and failed to s...
بیماری پژمردگی فوزاریومی ناشی از قارچ fusarium oxysporum f.sp melonis متداول¬ترین و گسترده ترین بیماری در خربزه است که در چند کشور جهان و از جمله ایران گزارش شده است. استفاده از ارقام مقاوم یکی از موثرترین روش¬های مدیریت این بیماری محسوب می¬شود، اما به منظور انتخاب و توسعه ارقام مقاوم آگاهی از تنوع ژنتیکی جمعیت¬های این قارچ ضروری است. در این مطالعه تنوع ژنتیکی جمعیت این بیمارگر در استان خراسان ...
Tomato (Lycopersicon esculentum Mill.) seedlings, susceptible (cv. Pearson A-I Improved) and resistant (cv. Pearson Improved) to race 1 Fusarium oxysporum f. sp. lycopersici (Sacc.) Snyd &Hans., were inoculated with Meloidogyne javanica (Trueb) Chitwood second-stage juveniles and 3 weeks later with race 1 F. oxysporum f. sp. lycopersici spores. One week after fungal inoculation, no fungus was v...
Leguminous cover crop and living mulch species show not only great potential for providing multiple beneficial services to agro-ecosystems, but may also present pathological risks for other crops in rotations through shared pathogens, especially those of the genus Fusarium. Disease severity on roots of subterranean clover, white clover, winter and summer vetch grown as cover crop and living mul...
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