نتایج جستجو برای: sipha maydis
تعداد نتایج: 1185 فیلتر نتایج به سال:
The filamentous ascomycete Bipolaris maydis is a plant pathogen that causes corn leaf blight and has been used in cytological studies of sexual reproduction. In this fungus, when null mutants each septin are crossed with the wild-type strain, all ascospores derived from same asci show abnormal morphology. phenomenon was remarkably similar to event known as “ascus dominance” Neurospora crassa , ...
BACKGROUND We performed an ethnomycological study in a community in Tlaxcala, Central Mexico to identify the most important species of wild mushrooms growing in an oak forest, their significance criteria, and to validate the Cultural Significance Index (CSI). METHODS Thirty-three mestizo individuals were randomly selected in San Mateo Huexoyucan and were asked seven questions based on criteri...
Seasonal fluctuations in field populations of Meloidogyne incognita, Pratylenchus zeae, P. brachyurus, Criconemoides ornatus, Trichodorus christiei, and Helicotylenchus dihystera on monocultured corn, cotton, peanut, and soybean were determined monthly for 4 yr. Population densities of M. incognita were greater in corn and cotton plots than in peanut and soybean plots from July until January. T...
The fungus Ustilago maydis represents one of the major threats to maize plants since it is responsible for corn smut disease, which generates considerable economical losses around world. Therefore, contributing a better understanding biochemistry defense mechanisms used by U. protect itself against harsh environments, such as synthesis melanin, could provide improved biological tools tackling p...
ustilago maydisاز شاخه بازیدیومیکوت ها و عامل بیماری مخرب سیاهک عمومی ذرت و سورگوم می باشد. این گونه در طول چرخه زندگی خود دارای مراحل مختلف هاپلوئید، دیکاریوتیک و دیپلوئید است. در اثر تلاقی بین دو سلول هاپلوئید سازگار روی سطح برگ مرحله دیکاریوتیک ایجاد می شود که قادر به بیماری زایی در گیاه می باشد. اگر چهu. maydis از طریق اندام های هوایی و ریشه قادر به نفوذ است ولی علایم بیماری تنها روی اندام ...
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