Mutation of an Arginine Biosynthesis Gene Causes Reduced Pathogenicity in Fusarium oxysporum f. sp. melonis
نویسندگان
چکیده
منابع مشابه
Recovery of Mutants Impaired in Pathogenicity After Transposition of Impala in Fusarium oxysporum f. sp. melonis.
ABSTRACT The ability of transposon impala to inactivate genes involved in pathogenicity was tested in Fusarium oxysporum f. sp. melonis. Somatic excision of an impala copy inserted in the nitrate reductase-encoding niaD gene was positively selected through a phenotypic assay based on the restoration of nitrate reductase activity. Independent excision events were analyzed molecularly and shown t...
متن کاملFusarium oxysporum f. sp. melonis به نژادهای Cucumis melo واکنش ارقام عامل پژمردگی فوزاریومی
شامل طالبی، خربزه، خیار چنبر، گرمک و دستنبو جمع آوری شده از Cucumis melo واکنش ۱۸۰ تودههای بومی و خارجی در شر ایط Fusarium oxysporum f.sp. melonis ۲و ۱،۲ ، نقاط مختلف ایران و سایر نقاط جهان به نژادهای مختلف صفر، ۱ به نژادهای صفر و دو C. melo گلخانه با توانهای مختلف زادمایه عامل بیماری مورد مطالعه قرار گرفت. بسیاری از ارقام ایرانی که از ایران تا کنون گزارش نشده اند، مقاوم بودند . تعداد معدودی از...
متن کاملComparative Proteomics Analyses of Two Races of Fusarium oxysporum f. sp. conglutinans that Differ in Pathogenicity
Fusarium oxysporum is a soil-inhabiting fungus that induces vascular wilt and root rot in a variety of plants. F. oxysporum f. sp. conglutinans (Foc), which comprises two races, can cause wilt disease in cabbage. Compared with race 1 (52557(-TM), R1), race 2 (58385(-TM), R2) exhibits much stronger pathogenicity. Here, we provide the first proteome reference maps for Foc mycelium and conidia and...
متن کاملIdentification of pathogenicity‐related genes in Fusarium oxysporum f. sp. cepae
Pathogenic isolates of Fusarium oxysporum, distinguished as formae speciales (f. spp.) on the basis of their host specificity, cause crown rots, root rots and vascular wilts on many important crops worldwide. Fusarium oxysporum f. sp. cepae (FOC) is particularly problematic to onion growers worldwide and is increasing in prevalence in the UK. We characterized 31 F. oxysporum isolates collected ...
متن کاملMolecular phylogeny, pathogenicity and toxigenicity of Fusarium oxysporum f. sp. lycopersici
The present study aimed at the molecular characterization of pathogenic and non pathogenic F. oxysporum f. sp. lycopersici strains isolated from tomato. The causal agent isolated from symptomatic plants and soil samples was identified based on morphological and molecular analyses. Pathogenicity testing of 69 strains on five susceptible tomato varieties showed 45% of the strains were highly viru...
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ژورنال
عنوان ژورنال: Molecular Plant-Microbe Interactions®
سال: 2001
ISSN: 0894-0282,1943-7706
DOI: 10.1094/mpmi.2001.14.4.580