نتایج جستجو برای: sclerotinia sclerotiorum و fusarium graminearum

تعداد نتایج: 775927  

Journal: :Phytopathology 2005
Timothy J Chipps Barbara Gilmore James R Myers Henrik U Stotz

ABSTRACT Sclerotinia sclerotiorum is a necrotrophic pathogen that devastates the yields of numerous crop species, including beans. The disease in common bean and pea is referred to as white mold. We examined the relationship between oxalate, an established virulence factor of S. sclerotiorum, and partial white mold resistance of scarlet runner bean (Phaseolus coccineus). P. coccineus genotypes ...

2016
Ryan Basler

Pre-harvest contamination of forage maize by mycotoxin producing Fusarium species was investigated in the UK in 2011 and 2012. A total of 15 Fusarium species were identified from a collection of 1,761 Fusarium isolates recovered from maize stalks and kernels. This study characterized the diversity of Fusarium species present in forage maize in the UK. The predominant species detected were F. gr...

Journal: :Applied and Environmental Microbiology 1996

2012
A. Bernhoft M. Torp P.-E. Clasen A.-K. Løes A.B. Kristoffersen

A total of 602 samples of organically and conventionally grown barley, oats and wheat was collected at grain harvest during 2002-2004 in Norway. Organic and conventional samples were comparable pairs regarding cereal species, growing site and harvest time, and were analysed for Fusarium mould and mycotoxins. Agronomic and climatic factors explained 10-30% of the variation in Fusarium species an...

2003
Guihua Lu

The fungal pathogen Sclerotinia sclerotiorum (Lib.) de Bary is worldwide in distribution and pathogenic to more than 400 plant species. This disease causes significant yield losses of various important crops including sunflower, canola, and soybean. Applying fungicides and crop rotation are currently the major methods of controlling this disease. However, fungicide chemicals are expensive, not ...

Journal: :Revista Sapiência : Sociedade, Sabres e Práticas Educacionais 2023

A parede celular do fungo é responsável pela proteção, forma e comunicação intracelular. Essas variedades funcionais, estão relacionadas à sua composição tendo como principais componentes glicanas quitinas que podem ser variáveis de acordo com a espécie gênero fungo. O Trichoderma está entre os mais estudados atualmente, devido importância para agricultura por efetivo contra patógenos plantas. ...

Journal: :Environmental microbiology 2015
Chengqi Zhang Yun Chen Yanni Yin Huan-Hong Ji Won-Bo Shim Yiping Hou Mingguo Zhou Xiang-Dong Li Zhonghua Ma

Fusarium head blight (FHB) caused by Fusarium graminearum is a devastating disease of cereal crops worldwide. Recently, a novel fungicide JS399-19 has been launched into the marketplace to manage FHB. It is compelling that JS399-19 shows highly inhibitory activity towards some Fusarium species, but not to other fungi, indicating that it is an environmentally compatible fungicide. To explore the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده کشاورزی 1391

فوزاریوز سنبله گندم ( fusarium head blight = fhb) یکی از بیماری های مهم در سرتاسر جهان است. این بیماری باعث کاهش کمیت و کیفیت محصول می گردد. بیمارگر fusarium graminearum به عنوان عامل مهم این بیماری مجموعه ای از تریکوتسین ها شامل دی اکسی نیوالنول (don)، نیوالنول (niv)، فوزارنون x و مایکوتوکسین استروژنیک زرالنون را تولید می کند. به منظور ردیابی ژن های موثر در تولید تریکوتسین در جدایه هایfusarium...

2017
Manoj Kaushal Ajay Kumar Rajesh Kaushal

A study was executed in a direction to attenuate Sclerotinia stalk rot (SSR) disease through biocontrol agent and also to enhance crop productivity. Culture filtrate of bacterial strain YSPMK11 inhibited growth of Sclerotinia sclerotiorum in vitro which also exhibited higher plant growth promoting attributes. Interaction studies revealed maximum (81.50%) growth inhibition at 35 °C and pH 7.0 af...

Journal: :Fungal genetics and biology : FG & B 2007
David E Starkey Todd J Ward Takayuki Aoki Liane R Gale H Corby Kistler David M Geiser Haruhisa Suga Beáta Tóth János Varga Kerry O'Donnell

To expand our knowledge of Fusarium head blight (FHB) pathogen and trichothecene toxin diversity, a global collection of 2100 isolates was screened for novel genetic variation, resulting in the identification of 16 phylogenetically divergent FHB isolates. The affinities and taxonomic status of these novel isolates were evaluated via phylogenetic analyses of multilocus DNA sequence data (13 gene...

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