نتایج جستجو برای: t. virens and t. atroviride

تعداد نتایج: 16954422  

Journal: :iran agricultural research 2011
g. moayedi r. mostowfizadeh-ghalamfarsa

trichoderma species are among important antagonists of plant pathogenic fungi. the main purpose of this study was to evaluate the biocontrol potential of native trichoderma spp. isolates from sugar beet fields against phytophthora drechsleri and p. cryptogea, the causal agents of phytophthora root rot of sugar beet. during 2007–08, 85 isolates of trichoderma spp. from sugar beet fields in eight...

G. MOAYEDI R. MOSTOWFIZADEH-GHALAMFARSA

Trichoderma species are among important antagonists of plant pathogenic fungi. The main purpose of this study was to evaluate the biocontrol potential of native Trichoderma spp. isolates from sugar beet fields against Phytophthora drechsleri and P. cryptogea, the causal agents of Phytophthora root rot of sugar beet. During 2007–08, 85 isolates of Trichoderma spp. from sugar beet fields in eight...

ژورنال: :iran agricultural research 0
g. moayedi department of plant protection, college of agriculture, shiraz university, shiraz, i.r. iran r. mostowfizadeh-ghalamfarsa department of plant protection, college of agriculture, shiraz university, shiraz, i.r. iran

شبه­گونه­های تریکودرما از مهم­ترین آنتاگونیست­های قارچ­های بیمارگر گیاهی می­باشند که شناسایی و تعیین توان آنتاگونیستی آنها کمک زیادی به مطالعات کنترل زیستی می­کند. هدف اصلی از این مطالعه تعیین توان کنترل­زیستی جدایه­های بومی تریکودرما، جدا شده از مزارع چغندرقند، علیه گونه­های phytophthora drechleri و p. cryptogea عوامل پوسیدگی ریشه چغندرقند می­باشد. طی دو فصل زراعی (1386 و 1387)، 85 جدایه از گو...

Journal: :Journal of microbiology and biotechnology 2011
Daejung Kang Jiyoung Kim Jung Nam Choi Kwang-Hyeon Liu Choong Hwan Lee

In this study, seven Trichoderma species (33 strains) were classified using secondary metabolite profile-based chemotaxonomy. Secondary metabolites were analyzed by liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI-MS-MS) and multivariate statistical methods. T. longibrachiatum and T. virens were independently clustered based on both internal transcribed spacer (ITS...

Journal: :Plant physiology 2009
Hexon Angel Contreras-Cornejo Lourdes Macías-Rodríguez Carlos Cortés-Penagos José López-Bucio

Trichoderma species belong to a class of free-living fungi beneficial to plants that are common in the rhizosphere. We investigated the role of auxin in regulating the growth and development of Arabidopsis (Arabidopsis thaliana) seedlings in response to inoculation with Trichoderma virens and Trichoderma atroviride by developing a plant-fungus interaction system. Wild-type Arabidopsis seedlings...

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...

2016
Sahil Mahfooz Satyendra P. Singh Ramraje Rakh Arpita Bhattacharya Nishtha Mishra Poonam C. Singh Puneet S. Chauhan Chandra S. Nautiyal Aradhana Mishra

Members of genus Trichoderma are known worldwide for mycoparasitism. To gain a better insight into the organization and evolution of their genomes, we used an in silico approach to compare the occurrence, relative abundance and density of SSRs in Trichoderma atroviride, T. harzianum, T. reesei, and T. virens. Our analysis revealed that in all the four genome sequences studied, the occurrence, r...

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...

Journal: :Applied and environmental microbiology 2000
M R Hermosa I Grondona E A Iturriaga J M Diaz-Minguez C Castro E Monte I Garcia-Acha

The most common biological control agents (BCAs) of the genus Trichoderma have been reported to be strains of Trichoderma virens, T. harzianum, and T. viride. Since Trichoderma BCAs use different mechanisms of biocontrol, it is very important to explore the synergistic effects expressed by different genotypes for their practical use in agriculture. Characterization of 16 biocontrol strains, pre...

ژورنال: :دانش گیاهپزشکی ایران 2010
شهرام نعیمی سید محمود اخوت محمد جوان نیکخواه لاسلو کردیچ وحید خسروی

نمونه برداری از مزارع برنج در مناطق مختلف استان مازندران انجام شد. نمونه های خاک و اندامهای هوایی برنج به آزمایشگاه منتقل گردید و جدایه های trichodermaبا استفاده از محیط کشت انتخابی rbsf از آنها جداسازی شدند. 202 جدایه به روش تک اسپور خالص سازی و dna ژنومی آنها با استفاده از کیت استخراج شد. برای شناسایی جدایه های مذکور، صفات مورفولوژیکی و نیز صفات ملکولی آنها مورد بررسی قرار گرفتند. صفات مورف...

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