نتایج جستجو برای: r solani

تعداد نتایج: 450328  

Journal: :Phytopathology 2011
Jolien D'aes Gia Khuong Hoang Hua Katrien De Maeyer Joke Pannecoucque Ilse Forrez Marc Ongena Lars E P Dietrich Linda S Thomashow Dmitri V Mavrodi Monica Höfte

Pseudomonas CMR12a was previously selected as an efficient biocontrol strain producing phenazines and cyclic lipopeptides (CLPs). In this study, biocontrol capacity of Pseudomonas CMR12a against Rhizoctonia root rot of bean and the involvement of phenazines and CLPs in this ability were tested. Two different anastomosis groups (AGs) of Rhizoctonia solani, the intermediately aggressive AG 2-2 an...

2017
Alison L. Thompson Aaron K. Mahoney Richard W. Smiley Timothy C. Paulitz Scot Hulbert Kim Garland-Campbell

Soil-borne pathogens of the Pacific Northwest decrease yields in both spring and winter wheat. Pathogens of economic importance include Fusarium culmorum, Pratylenchus neglectus, P. thornei, and Rhizoctonia solani AG8. Few options are available to growers to manage these pathogens and reduce yield loss, therefore the focus for breeding programs is on developing resistant wheat cultivars. A reco...

2016
Suchi Srivastava Vidisha Bist Sonal Srivastava Poonam C. Singh Prabodh K. Trivedi Mehar H. Asif Puneet S. Chauhan Chandra S. Nautiyal

Rhizoctonia solani is a necrotrophic fungi causing sheath blight in rice leading to substantial loss in yield. Excessive and persistent use of preventive chemicals raises human health and environment safety concerns. As an alternative, use of biocontrol agents is highly recommended. In the present study, an abiotic stress tolerant, plant growth promoting rhizobacteria Bacillus amyloliquefaciens...

2017
Wenjin Hu Xinli Pan Hafiz Muhammad Khalid Abbas Fengfeng Li Wubei Dong

Rhizoctonia solani is a causative agent of sheath blight, which results in huge economic losses every year. During its life cycle, the formation of sclerotia helps Rhizoctonia solani withstand a variety of unfavorable factors. Oxidative stress is a key factor that induces sclerotium formation. The differentiated and undifferentiated phenotypes of R. solani AG-1-IA were obtained by controlling a...

Journal: :BMC biotechnology 2016
Prithwi Ghosh Senjuti Sen Joydeep Chakraborty Sampa Das

BACKGROUND Rice sheath blight, caused by Rhizoctonia solani is one of the most devastating diseases of rice. It is associated with significant reduction in rice productivity worldwide. A mutant variant of mannose binding Allium sativum leaf agglutinin (mASAL) was previously reported to exhibit strong antifungal activity against R. solani. In this study, the mASAL gene has been evaluated for its...

Journal: :Journal of microbiological methods 2003
Martin Filion Marc St-Arnaud Suha H Jabaji-Hare

Detection and quantification of genomic DNA from two ecologically different fungi, the plant pathogen Fusarium solani f. sp. phaseoli and the arbuscular mycorrhizal fungus Glomus intraradices, was achieved from soil substrate. Specific primers targeting a 362-bp fragment from the SSU rRNA gene region of G. intraradices and a 562-bp fragment from the F. solani f. sp. phaseoli translation elongat...

Journal: :حفاظت گیاهان 0
جانی پور جانی پور خداپرست خداپرست الهی نیا الهی نیا پاداشت پاداشت

abstract sclerogenic fungal pathogens, are among the most important diseases of rice plant. sheath blight caused by rhizoctonia solani is one of the economically important diseases that attack a wide range of hosts. stem rot (magnaporthe salvinii) has also been found with different severity in most fields of guilan province. to determine sclerogenic fungal pathogens of rice plant, 141 isolates ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده علوم کشاورزی 1390

سیب زمینی (l.) tuberosum solanum گیاهی یکساله علفی و دولپه است که به خانواده سولاناسه تعلق دارد و یکی از محصولات پرمصرف جهانی می باشد. یکی از عوامل محدود کننده کشت سیب زمینی، بیماری شانکر ریزوکتونیایی است. با توجه به ماهیت عامل بیماری که خاکزاد می باشد مبارزه شیمیایی با آن نه تنها نمی تواند کاملاًً موثر باشد بلکه باعث تخریب محیط زیست نیز می گردد. بنابراین یکی از راههای مبارزه با این بیماری کنترل ...

2012
Emran Hossain Md. Shamim Akhter

Cotton is one of the most important fibre plants with much more products being manufactured from it than most other fibre . Apart from fibre, it is used for explosives, cottonwool, etc, and the seed is used principally for the manufacture of oil, soap, animal feed and fertilizers, producing practically no waste. To determine the effective sawdust concentration to inhibit the growth of Rhizocton...

Journal: :Letters in applied microbiology 2006
F Vinale R Marra F Scala E L Ghisalberti M Lorito K Sivasithamparam

AIMS Trichoderma harzianum strains T22 and T39 are two micro-organisms used as active agents in a variety of commercial biopesticides and biofertilizers and widely applied amongst field and greenhouse crops. The production, isolation, biological and chemical characterization of the main secondary metabolites produced by these strains are investigated. METHODS AND RESULTS Of the three major co...

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