نتایج جستجو برای: قارچ verticillium dahliae

تعداد نتایج: 8619  

2015
Xuepeng Fu Xia Wu Xingang Zhou Shouwei Liu Yanhui Shen Fengzhi Wu

Intercropping could alleviate soil-borne diseases, however, few studies focused on the immunity of the host plant induced by the interspecific interactions. To test whether or not intercropping could enhance the disease resistance of host plant, we investigated the effect of companion cropping with potato onion on tomato Verticillium wilt caused by Verticillium dahliae (V. dahliae). To investig...

2009
Himmet Tezcan Nuray Akbudak

Verticillium wilt, caused by Verticillium dahliae Kleb., is one of the most important diseases of peppers. Harpin is a bio-activator that may be used as an alternative control against insects and fungi. Therefore, the aim of this study was to describe how harpin affected plants that had been inoculated with V. dahliae. Disease severity in harpin+V. dahliae-treated plants was lowered by a rate o...

ژورنال: :گیاه پزشکی 2015
سحر خان محمدی حسین جعفری محمد سالاری سیده مهری جوادی

پژمردگی ورتیسلیومی یکی از بیماری¬های مهم زیتون است که با تخریب آوندها باعث خشکیدگی شاخهها، کاهش عملکرد و در نهایت مرگ درختان بیمار میشود. در این تحقیق ابتدا از درختان زیتون مشکوک به پژمردگی ورتیسیلیومی در منطقه طارم در استان زنجان نمونه برداری شد. پس از کشت و خالص سازی قارچ، استخراج دی ان اِ با روش سی تب انجام شد . برای ارزیابی واکنش ارقام زیتون، ریشه نهال¬های پنج ماهه ارقام زرد ، آربیکن، آبلونک...

2011
Jadwiga Irena Żebrowska

The soil-borne pathogenic fungus Verticillium dahliae Kleb. causes economic losses in crops in temperate regions of the world and hence is the most studied species. Strawberry (Fragaria x ananassa Duch.) belongs to plant species susceptible to Verticillium dahliae, although the response to infection caused by this pathogen is varied and depends on the cultivar. Due to a lack of efficient method...

2015
Jahanshir Amini

Verticillium wilt of potato is a major limiting factor in potato production caused by Verticillium dahliae. The objective of this study was to evaluate the efficacy two elicitors including Acibenzolar-S-methyl (ASM) and Chitosan as plant activator in controlling of potato verticillium wilt in vitro and greenhouse conditions. ASM and chitosan were tested in vitro using Potato dextrose Agar (PDA)...

2011
Steven J. Klosterman Krishna V. Subbarao Seogchan Kang Paola Veronese Scott E. Gold Bart P. H. J. Thomma Zehua Chen Bernard Henrissat Yong-Hwan Lee Jongsun Park Maria D. Garcia-Pedrajas Dez J. Barbara Amy Anchieta Ronnie de Jonge Parthasarathy Santhanam Karunakaran Maruthachalam Zahi Atallah Stefan G. Amyotte Zahi Paz Patrik Inderbitzin Ryan J. Hayes David I. Heiman Sarah Young Qiandong Zeng Reinhard Engels James Galagan Christina A. Cuomo Katherine F. Dobinson Li-Jun Ma

The vascular wilt fungi Verticillium dahliae and V. albo-atrum infect over 200 plant species, causing billions of dollars in annual crop losses. The characteristic wilt symptoms are a result of colonization and proliferation of the pathogens in the xylem vessels, which undergo fluctuations in osmolarity. To gain insights into the mechanisms that confer the organisms' pathogenicity and enable th...

Journal: :Phytopathology 2007
Z K Atallah J Bae S H Jansky D I Rouse W R Stevenson

ABSTRACT Potato early dying (PED), also known as Verticillium wilt, caused by Verticillium dahliae, is a seasonal yield-limiting disease of potato worldwide, and PED-resistant cultivars currently represent only a small percentage of potato production. In this study, we developed a real-time quantitative polymerase chain reaction (Q-PCR) approach to detect and quantify V. dahliae. The efficiency...

2015
M. Mercedes Maldonado-González Peter A. H. M. Bakker Pilar Prieto Jesús Mercado-Blanco

The effective management of Verticillium wilts (VW), diseases affecting many crops and caused by some species of the soil-borne fungus Verticillium, is problematic. The use of microbial antagonists to control these pathologies fits modern sustainable agriculture criteria. Pseudomonas fluorescens PICF7 is an endophytic bacterium isolated from olive roots with demonstrated ability to control VW o...

2004
Thomas Gulya

A new strain of Verticillium dahliae, the fungus causing Verticillium leaf mottle and wilt, was identified from northwestern Minnesota in 2002. The new strain or biotype is characterized by its ability to overcome the single, dominant V-1 resistance gene employed in oilseed and confection hybrids. Samples collected in 2003 from diseased plants confirmed the new biotype also exists in Manitoba, ...

2014
Rocío Calderón Carlos Lucena José L. Trapero-Casas Pablo J. Zarco-Tejada Juan A. Navas-Cortés Malcolm Bennett

BACKGROUND Development of Verticillium wilt in olive, caused by the soil-borne fungus Verticillium dahliae, can be influenced by biotic and environmental factors. In this study we modeled i) the combined effects of biotic factors (i.e., pathotype virulence and cultivar susceptibility) and abiotic factors (i.e., soil temperature) on disease development and ii) the relationship between disease se...

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