نتایج جستجو برای: bipolaris sorokiniana

تعداد نتایج: 987  

2018
Sabiha Sultana Sanjoy Kumar Adhikary Md. Monirul Islam Sorder Mohammad Mahbubur Rahman

Leaf blotch of wheat caused by Bipolaris sorokiniana is a major constraint to wheat production, causing significant yield reduction resulting in severe economic impact. The present study characterizes to determine and compare pathogenic variability exist/not based on components of leaf blotch disease development and level of aggressiveness due to agroclimatic condition of B. sorokiniana in whea...

2003
RITA C. B. WEIKERT-OLIVEIRA M. APARECIDA DE RESENDE HENRIQUE M. VALÉRIO RACHEL B. CALIGIORNE EDILSON PAIVA Maria Aparecida de Resende

Vinte amostras de espécies de fungos, agentes da helmintosporiose em cereais, foram obtidas de diferentes regiões geográficas, sendo nove constituídas de Bipolaris oryzae, isoladas de cultura do arroz (Oryza sativa), sete de B. sorokiniana coletadas de trigo (Triticum aestivum), duas de B. maydis e duas de Exserohilum turcicum provenientes de milho (Zea mays). As amostras foram analisadas atrav...

2006

Spot blotch is caused by Helminthosporium sativum or H. sorokinianum = Drechslera sorokiniana (Bipolaris sorokiniana). The disease is widespread in Illinois and is believed to lower potential barley yields by 1 to 3 percent; also, the bushel weight. The causal fungus affects all parts of the plant and produces a variety of symptoms, from a seedling blight and root rot to “Black point” of the ke...

ژورنال: :بیماریهای گیاهی 2011
شهرام نعیمی وحید خسروی تاکائو تسوکیبوشی

بوته های برنج دارای علائم پوسیدگی ناحیه طوقه و لکه های بزرگٍ قهوه‏ای تیره روی غلاف و ساقه در مزرعه ای در مازندران مشاهده گردید. بر اساس مشخصات مورفولوژیک، قارچ رشد یافته در اطراف قطعات کشت داده شده، bipolaris sorokiniana شناسایی شد. پس از توالی یابی ناحیه its از ژن rdna نسبت به ارزیابی همولوژی آن با توالی های موجود در بانک ژن اقدام گردید کهبا هشت استرین sorokinianab. و cochliobolus sativus (تلئو...

2017
Shritama Aich Ravi K. Singh Pritha Kundu Shree P. Pandey Supratim Datta

BACKGROUND Bipolaris sorokiniana is a filamentous fungus that causes spot blotch disease in cereals like wheat and has severe economic consequences. However, information on the identities and role of the cell wall-degrading enzymes (CWDE) in B. sorokiniana is very limited. Several fungi produce CWDE like glycosyl hydrolases (GHs) that help in host cell invasion. To understand the role of these ...

Journal: :Biochemical Society transactions 2000
A G Vereshchagin A V Zhukov

Infection of etiolated wheat seedlings with a root rot fungus Bipolaris sorokiniana caused a strong deviation in the fatty acid composition of their total lipids from the control. The deviation occurred at the expense of that lipid group, which predominates in a given plant organ (shoots or roots), and peak deviation coincided with the onset of a severe inhibition of growth.

Journal: :حفاظت گیاهان 0
سمیعی سمیعی نیکخواه نیکخواه زمانی زاده زمانی زاده رفیعی کرهرودی رفیعی کرهرودی

abstract common root rot induced by bipolaris sorokiniana, is one of the most important diseases of wheat. chemical control of this disease is difficult because of it is a soil-born pathogen, so that, application of other methods is useful to reduce disease level especially resistance cultivars. in this research, were examined reaction of some wheat cultivars and lines against common root rot i...

2011
M. M. RAHMAN A. K. M. M. ALAM N. NAHER S. M. SHARIFUZZAMAN M. A. N. UDDIN

A study on response of 29 barley genotypes resistant to Bipolaris leaf blight (Bipolaris sorokiniana) was conducted to investigate the relationship of the components of resistance of 29 barley genotypes. Data on five components of resistance viz., infection frequency (number of lesions per plant), lesion size (mm), percent leaf area affected by lesion, percent necrotic area on leaf, and disease...

Journal: رستنیها 2011
A. Ahmadpour M. Donyadoost-Chelan M. Javan-Nikkhah, Z. Heidarian

In this study, 10 species of Bipolaris viz.B. bicolor, B. cynodontis, B. cylindrica, B. hawaiiensis,B. prieskaensis, B. sorghicola, B. sorokiniana,B. spicifera, B. zeae and B. zeicola and four species of Curvularia viz.C. fallax, C. heteropogonicola, C. inaequalis and C. lunata were identified on graminicolous species or soil. Bipolaris cylindrica, B. prieskaensis, B. zeae,C. fallax and C. hete...

ژورنال: بیماریهای گیاهی 2011
تاکائو تسوکیبوشی شهرام نعیمی, وحید خسروی,

بوته‌های برنج دارای علائم پوسیدگی ناحیه طوقه و لکه‌های بزرگٍ قهوه‏ای تیره روی غلاف و ساقه در مزرعه‌ای در مازندران مشاهده گردید. بر اساس مشخصات مورفولوژیک، قارچ رشد یافته در اطراف قطعات کشت داده شده، Bipolaris sorokiniana شناسایی شد. پس از توالی یابی ناحیه ITS از ژن <str...

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