نتایج جستجو برای: complex species fusarium graminearum

تعداد نتایج: 1300239  

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...

2013
Boknam Jung Sehee Lee Jiran Ha Jong-Chul Park Sung-Sook Han Ingyu Hwang Yin-Won Lee Jungkwan Lee

The ascomycete fungus Fusarium graminearum is a major causal agent for Fusarium head blight in cereals and produces mycotoxins such as trichothecenes and zearalenone. Isolation of the fungal strains from air or cereals can be hampered by various other airborne fungal pathogens and saprophytic fungi. In this study, we developed a selective medium specific to F. graminearum using toxoflavin produ...

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...

Journal: :Genetics and molecular research : GMR 2014
M Lazarotto P M Milanesi M F B Muniz L R S Reiniger R Beltrame R Harakava E Blume

The occurrence of Fusarium spp associated with pecan tree (Carya illinoinensis) diseases in Brazil has been observed in recent laboratory analyses in Rio Grande do Sul State. Thus, in this study, we i) obtained Fusarium isolates from plants with disease symptoms; ii) tested the pathogenicity of these Fusarium isolates to pecan; iii) characterized and grouped Fusarium isolates that were pathogen...

2013
Dima Alkadri Paola Nipoti Katharina Döll Petr Karlovsky Antonio Prodi Annamaria Pisi

Wheat is one of the main crops in Mediterranean countries, and its cultivation has an important role in the Syrian economy. In Syria, Fusarium head blight (FHB) has not been reported so far. Mycological analysis of 48 samples of wheat kernels collected from cultivation areas with different climatic conditions were performed in 2009 and 2010. Fungal isolates were identified at the genus level mo...

2017
Giovanni Beccari Antonio Prodi Francesco Tini Umberto Bonciarelli Andrea Onofri Souheib Oueslati Marwa Limayma Lorenzo Covarelli

In this study, conducted for three years on eleven malting barley varieties cultivated in central Italy, the incidence of different mycotoxigenic fungal genera, the identification of the Fusarium species associated with the Fusarium Head Blight (FHB) complex, and kernels contamination with deoxynivalenol (DON) and T-2 mycotoxins were determined. The influence of climatic conditions on Fusarium ...

Journal: :Fungal genetics and biology : FG & B 2008
Kerry O'Donnell Todd J Ward Dereje Aberra H Corby Kistler Takayuki Aoki Nathane Orwig Makoto Kimura Smund Bjørnstad Sonja S Klemsdal

A survey of Fusarium head blight (FHB)-contaminated wheat in Ethiopia recovered 31 isolates resembling members of the Fusarium graminearum species complex. Results of a multilocus genotyping (MLGT) assay for FHB species and trichothecene chemotype determination suggested that 22 of these isolates might represent a new species within the Fg complex. Phylogenetic analyses of multilocus DNA sequen...

2011
Jenny Spång Elisabeth Fredlund Stefan Bertilsson

Fusarium is a type of mould capable of producing several diseases in cereals. Infection is a worldwide problem associated with yield losses and the accumulation of toxic secondary metabolites, mycotoxins, which are harmful to both humans and animals. F. graminearum, F. culmorum, F. avenaceum, F. poae, and F. tricinctum, including corresponding mycotoxins were quantified in wheat samples from 6 ...

2008
Xing-Ming Zhao Weihua Tang Luonan Chen

Identifying the unique pathogenic patterns underlying the phytopathogenic fungi is important for plant disease control. This paper presents a novel method for identifying the specific conserved patterns for the pathogenic species. By employing a feature selection technique, the specific patterns that best discriminate the pathogenic species from non-pathogenic ones are identified, which are ass...

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