Pheromone-Related Inhibitors of Ustilago hordei Mating and Tilletia tritici Teliospore Germination
نویسندگان
چکیده
منابع مشابه
The mating-type and pathogenicity locus of the fungus Ustilago hordei spans a 500-kb region.
The fungal pathogen Ustilago hordei causes the covered smut disease of barley and oats. Mating and pathogenicity in this fungus are controlled by the MAT locus, which contains two distinct gene complexes, a and b. In this study, we tagged the a and b regions with the recognition sequence for the restriction enzyme I-SceI and determined that the distance between the complexes is 500 kb in a MAT-...
متن کاملSporidial mating and infection process of the smut fungus, Ustilago hordei, in susceptible barley1
Ustilago hordei (Pers.) Lagerh. causes covered smut of barley and oats. Sporidial mating and the infection process on compatible barley plants, cv. Hannchen, were investigated using light microscopy and scanning and transmission electron microscopy. Within 2 h after mixing of sporidia of opposite mating types on water agar, polar conjugation tubes emerged that subsequently fused, producing infe...
متن کاملگزارشی در مورد سیاهک های استان همدان ( معرفی چند میزبان جدید برای سیاهک)
سیاهکها از قارچهای شاخه بازیدیومیکوتا هستند و تا سال 2012، 1640 گونه از آنها در دنیا گزارش شده است. در این بررسی بر اساس خصوصیات ریختشناسی و توالی یابی ITS 19 گونه قارچ سیاهک شاملUstilago turcomanica، Anthracoidea eleocharidis.، Ustilago hordei، Ustilago tritici، Ustilago cynodontis،Ustilago bullata، Sporisorium cruentum ، Ustilago maydis، Sporisorium reilianum، Ustilago phrygica، Tilletia b...
متن کاملCytology of Teliospore Germination and Basidiospore Formation in Uromyces appendiculatus
The cytology of teliospore germination and basidiospore formation in Urornyces appendiculatus vat. appendieulatus was characterized with light and fluoroscence microscopy. Meiosis of the diploid nucleus occurred in the metabasidium. The four haploid daughter nuclei migrated into the basidiospore initials where they underwent a post meiotic mitosis. Each basidiospore was delimited from the meata...
متن کاملThe pheromone cell signaling components of the Ustilago a mating-type loci determine intercompatibility between species.
The MAT region of Ustilago hordei, a bipolar barley pathogen, harbors distinct mating functions (a and b loci). Here, we show that the b locus is essential for mating and pathogenicity, and can induce pathogenicity when introduced into a strain carrying a b locus of opposite specificity. Transformation experiments using components of the a1 locus and analysis of resulting dual mating phenotypes...
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ژورنال
عنوان ژورنال: Phytopathology®
سال: 2002
ISSN: 0031-949X,1943-7684
DOI: 10.1094/phyto.2002.92.2.210