نتایج جستجو برای: virens

تعداد نتایج: 775  

Journal: :دانش گیاه پزشکی ایران 0
مهدی مهرابی کوشکی دوستمراد ظفری

the effect of different isolates of trichoderma namely t. virens t65, t virens t90, t. virens t96, t. virens t122, t. brevicompactum t146, t. koningiopsis t149, t. viridecense t150, t. koningii as well as two trichodermin b and subtilin commercial bioproducts on growth promotion in wheat were studied through seed coating method in a compeletly randomized design in a glasshouse experiment. the i...

2015
Miguel A. Salas-Marina María I. Isordia-Jasso María A. Islas-Osuna Pablo Delgado-Sánchez Juan F. Jiménez-Bremont Margarita Rodríguez-Kessler María T. Rosales-Saavedra Alfredo Herrera-Estrella Sergio Casas-Flores

Fungi belonging to the genus Trichoderma, commonly found in soil or colonizing plant roots, exert beneficial effects on plants, including the promotion of growth and the induction of resistance to disease. T. virens and T. atroviride secrete the proteins Sm1 and Epl1, respectively, which elicit local and systemic disease resistance in plants. In this work, we show that these fungi promote growt...

Journal: :Molecular Plant-microbe Interactions 2021

The interactions of crops with root-colonizing endophytic microorganisms are highly relevant to agriculture, because endophytes can modify plant resistance pests and increase crop yields. We investigated the between host Zea mays fungus Trichoderma virens at 5 days postinoculation grown in a hydroponic system. Wild-type T. two knockout mutants, deletion genes tv2og1 or vir4 involved specialized...

Journal: :Journal of Comparative Neurology 1900

Journal: :The Journal of antibiotics 1998
N Morisaki Y Mitsui Y Yamashita Y Koiso R Shirai Y Hashimoto S Iwasaki

Ustiloxin D, produced by the rice plant pathogen Ustilaginoidea virens, exhibits potent anti-tubulin activity. In order to elucidate the effects of functional groups in ustiloxin D on its activity, several derivatives were synthesized and their anti-tubulin activities were estimated. The N,N-dimethylamino derivative and the 14-O-methyl derivative were inactive (IC50 > 50 microM). 20-Hydroxymeth...

Journal: :Biodiversity: Research and Conservation 2021

Abstract An interesting specimen of Ficus L. was collected from the Idukki district Kerala. Based on detailed examination with protologues, literatures and type specimens, plant identified as virens Aiton var. dispersa Chantaras. This is first report occurrence this taxon in India. A description, photographs, illustrations, comparison allied taxa identification key are provided.

Journal: :دانش گیاه پزشکی ایران 0
شهرام نعیمی سید محمود اخوت محمد جوان نیکخواه لاسلو کردیچ وحید خسروی

samples were collected from soil and as well from phyllosphere of rice plant and subjected to dilution plate technique on rbsf trichoderma selective medium. a total of 202 trichoderma isolates were obtained from rice fields at different geographical locations distributed all over mazandaran province. single spore isolates were obtained and genomic dna extracted from all the isolates using dna e...

ژورنال: :دانش کشاورزی و تولید پایدار 0
فاطمه زواری پردیس ابوریحان دانشگاه تهران نوازالله صاحبانی پردیس ابوریحان دانشگاه تهران حسن رضا اعتباریان پردیس ابوریحان دانشگاه تهران

در این پژوهش چهار جدایه trichoderma virens  از نظر میزان فعالیت آنزیمی بتا 1و3 گلوکانازی و همچنین کنترل کنندگی بیماری بوته میری خیار  (phytophthora drechsleri) در شرایط گلخانه و آزمایشگاه بررسی شدند. . برای بررسی فعالیت آنتاگونیستی جدایه­های فوق، آزمایش­های گوناگونی به کمک روش متقابل و آزمون اثر مواد فرار انجام گرفت.  همچنین اثر ph (3، 5، 7، 8 و 9) و دما (5، 15، 20، 25، 30 و 40 درجه سانتی­گراد)...

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