نتایج جستجو برای: magnaprthe grisea

تعداد نتایج: 757  

ژورنال: :تولید محصولات زراعی و باغی 0
محمد امانزاده m. amanzadeh علی مؤمنی a. moumeni محمود اخوت m. okhovat محمد جوان جوان نیکخواه m.j. javan. nikkhah وحید خسروی v. khosravi

به منظور تعیین وضعیت توسعه .magnaporthe grisea (hebert) barr عامل بیماری بلاست برنج، ارزیابی برخی اجزای مقاومت به این بیماری در مرحله گیاهچه و خوشه، و هم چنین مطالعه امکان وجود هم بستگی بلاست برگ و خوشه، تعدادی ارقام برنج مورد مطالعه قرار گرفتند. ژنوتیپ های برنج شامل 23 رقم برنج از ایران، 5 لاین نزدیک به ایزوژن برای صفت مقاومت به بیماری بلاست و رقم حساس مادری آنها به همراه 11 ژنوتیپ برنج از مؤس...

اخوت, محمود , امانزاده, محمد , خسروی, وحید , مؤمنی, علی , جوان‌نیکخواه, محمد جوان‌,

  Blast, caused by Magnaprthe grisea, is often an important fungal disease in the production of rice in temperate and tropical areas including Iran. To determine reaction of rice cultivars against blast disease, 40 rice genotypes from Iran and other sources from Asia were selected. Four blast isolates from different races were used to test all rice genotypes in different greenhouse tests. In bl...

2008
Sze Chung Clive Lo Lisbeth Hamer John E. Hamer

1 CBS1 from Magnaporthe grisea is a structural and functional homolog of the 2 cystathionine beta synthase (CBS) gene from Saccharomyces cerevisiae. Our studies 3 indicated that M. grisea can utilize homocysteine and methionine through a CBS4 independent pathway. Results also revealed responses of M. grisea to homocysteine that 5 are reminiscent of human homocystinuria. 6

Journal: :Eukaryotic cell 2002
Sze Chung Clive Lo Lisbeth Hamer John E Hamer

CBS1 from Magnaporthe grisea is a structural and functional homolog of the cystathionine beta-synthase (CBS) gene from Saccharomyces cerevisiae. Our studies indicated that M. grisea can utilize homocysteine and methionine through a CBS-independent pathway. The results also revealed responses of M. grisea to homocysteine that are reminiscent of human homocystinuria.

Journal: :Revista iberoamericana de micologia 2007
Cleverson Busso Edilson Nobuyoshi Kaneshima Francisco de Assis Franco Marialba Avezum Alves de Castro-Prado

Isolates of Pyricularia grisea from wheat (Triticum aestivum Lam.) and triticale (x Triticosecale Wittmack) spikes with blast symptoms were analyzed by classical (VCG) and molecular (RAPD) techniques. P. grisea mutants, unable to use sodium nitrate (nit) as nitrogen source, were obtained with potassium chlorate. For vegetative compatibility (VCG) tests, genetically complementary nit mutant pair...

Journal: :International microbiology : the official journal of the Spanish Society for Microbiology 2013
M Carmen Molina Pradeep K Divakar Ning Zhang Natalia González Lena Struwe

The presence of apothecia in mixed species (vegetatively reproducing lichens, occasionally producing ascomata) has been interpreted as a mechanism to increase genetic variability in mostly clonal populations. However, spore viability from these apothecia has not been studied. We asked whether ascospores of the mixed species Physconia grisea are viable and thereby contribute to increasing the ge...

Journal: :The Plant cell 1999
K P Dixon J R Xu N Smirnoff N J Talbot

The phytopathogenic fungus Magnaporthe grisea elaborates a specialized infection cell called an appressorium with which it mechanically ruptures the plant cuticle. To generate mechanical force, appressoria produce enormous hydrostatic turgor by accumulating molar concentrations of glycerol. To investigate the genetic control of cellular turgor, we analyzed the response of M. grisea to hyperosmo...

ژورنال: علوم آب و خاک 2008
اخوت, محمود , امانزاده, محمد , خسروی, وحید , مؤمنی, علی , جوان‌نیکخواه, محمد جوان‌,

  Blast, caused by Magnaprthe grisea, is often an important fungal disease in the production of rice in temperate and tropical areas including Iran. To determine reaction of rice cultivars against blast disease, 40 rice genotypes from Iran and other sources from Asia were selected. Four blast isolates from different races were used to test all rice genotypes in different greenhouse tests. In bl...

Journal: :Phytopathology 2007
Young-Ki Jo Guo-Liang Wang Michael J Boehm

ABSTRACT Magnaporthe grisea (anamorph = Pyricularia grisea) causes blast on rice (Oryza sativa) and gray leaf spot on turfgrass. Gray leaf spot is a serious disease on St. Augustinegrass (Stenotaphrum secundatum), perennial ryegrass (Lolium perenne), and tall fescue (Festuca arundinacea). Virulence assays performed in this study revealed that M. grisea collected from rice could also cause disea...

Journal: :Journal of applied microbiology 2007
S R Tendulkar Y K Saikumari V Patel S Raghotama T K Munshi P Balaram B B Chattoo

AIMS Isolation of bacterial antagonist for use in the biological control of phytopathogenic fungi like rice blast fungus, Magnaporthe grisea, and to further purify and characterize the antifungal molecule produced by the antagonist. METHODS AND RESULTS Bacterial antagonist exhibiting highest antifungal activity against the rice blast fungus M. grisea was isolated from soil and identified as B...

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