TITLE

Brachypodium distachyon: a new pathosystem to study Fusarium head blight and other Fusarium diseases of wheat

AUTHOR(S)
Peraldi, Antoine; Beccari, Giovanni; Steed, Andrew; Nicholson, Paul
PUB. DATE
January 2011
SOURCE
BMC Plant Biology;2011, Vol. 11 Issue 1, p100
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background: Fusarium species cause Fusarium head blight (FHB) and other important diseases of cereals. The causal agents produce trichothecene mycotoxins such as deoxynivalenol (DON). The dicotyledonous model species Arabidopsis thaliana has been used to study Fusarium-host interactions but it is not ideal for model-to-crop translation. Brachypodium distachyon (Bd) has been proposed as a new monocotyledonous model species for functional genomic studies in grass species. This study aims to assess the interaction between the most prevalent FHB-causing Fusarium species and Bd in order to develop and exploit Bd as a genetic model for FHB and other Fusarium diseases of wheat. Results: The ability of Fusarium graminearum and Fusarium culmorum to infect a range of Bd tissues was examined in various bioassays which showed that both species can infect all Bd tissues examined, including intact foliar tissues. DON accumulated in infected spike tissues at levels similar to those of infected wheat spikes. Histological studies revealed details of infection, colonisation and host response and indicate that hair cells are important sites of infection. Susceptibility to Fusarium and DON was assessed in two Bd ecotypes and revealed variation in resistance between ecotypes. Conclusions: Bd exhibits characteristics of susceptibility highly similar to those of wheat, including susceptibility to spread of disease in the spikelets. Bd is the first reported plant species to allow successful infection on intact foliar tissues by FHB-causing Fusarium species. DON appears to function as a virulence factor in Bd as it does in wheat. Bd is proposed as a valuable model for undertaking studies of Fusarium head blight and other Fusarium diseases of wheat.
ACCESSION #
62641900

 

Related Articles

  • FcstuA INFLUENCES PATHOGENICITY AND MORPHO-PHYSIOLOGICAL TRAITS IN FUSARIUM CULMORUM. Pasquali, M.; Spanu, F.; Scherm, B.; Balmas, V.; Hoffman, L.; Kosack, K. Hammond; Beyer, M.; Migheli, Q. // Journal of Plant Pathology;Dec2012 Supplement, Vol. 94 Issue 4, pS4.74 

    Fusarium culmorum is one of the most harmful causal agents of crown and foot rot (CFR) and Fusarium head blight (FBH) diseases of durum wheat. Significant crop losses are caused by contamination of grain by mycotoxins, primarily due to type B trichothecenes. We have now identified and...

  • Quantification of the relationship between the environment and Fusarium head blight, Fusarium pathogen density, and mycotoxins in winter wheat in Europe. Kriss, Alissa; Paul, Pierce; Xu, Xiangming; Nicholson, Paul; Doohan, Fiona; Hornok, Laszlo; Rietini, Alberto; Edwards, Simon; Madden, Laurence // European Journal of Plant Pathology;Aug2012, Vol. 133 Issue 4, p975 

    Measurements of local environmental conditions, intensity of Fusarium head blight (FHB) in wheat spikes, biomass of Fusarium graminearum, F. culmorum, and F. poae (pathogens causing FHB) and concentration of the mycotoxins deoxynivalenol (DON) and nivalenol (NIV) in harvested wheat grain were...

  • Assessment of genotypic diversity among Fusarium culmorum populations on wheat in Iran. POUZESHIMIAB, BEHNAM; RAZAVI, MOHAMMAD; ZAMANIZADEH, HAMID REZA; ZARE, RASOUL; REZAEE, SAEED // Phytopathologia Mediterranea;Aug2014, Vol. 53 Issue 2, p300 

    Fusarium culmorum is one of the most important causal agents of crown rot of wheat in the north and northwest of Iran. Eight pairs of single-locus microsatellite primers were used to analyze genomic DNA of 88 isolates of F. culmorum collected from wheat fields in five provinces of Iran....

  • Manage crop to cut down the risk of rejection. Abram, Mike // Farmers Weekly;5/22/2009, p6 

    The article presents an overview of wheat mycotoxins in Great Britain, their risk factors and the role of management techniques. It defines mycotoxins as toxic substances generated by a fungus which can decrease animal performance and which can affect animal and human health. It notes that the...

  • FUNCTIONAL GENOMICS ANALYSIS OF FUSARIUM CULMORUM BY RANDOM INSERTIONAL MUTAGENESIS WITH A MIMP1/IMPALA DOUBLE-COMPONENT SYSTEM. Spanu, F.; Pasquali, M.; Scherm, B.; Balmas, V.; Marcello, A.; Ortu, G.; Dufresne, M.; Hoffman, L.; Daboussi, M. J.; Migheli, Q. // Journal of Plant Pathology;Dec2012 Supplement, Vol. 94 Issue 4, pS4.81 

    Fusarium culmorum is an ubiquitous soil-borne fungus incitant of crown and foot rot and Fusarium head blight especially in durum wheat and a type B trichothecene producer. The genome of F. culmorum is being sequenced but for many genes the function is yet unknown. Here we report for the first...

  • Means and variances for Fusarium head blight resistance of F2-derived bulks from winter triticale and winter wheat crosses. Miedaner, T.; Schneider, B.; Oettler, G. // Euphytica;12/15/2006, Vol. 152 Issue 3, p405 

    Fusarium head blight (FHB), caused by Fusarium graminearum and Fusarium culmorum, is a devastating disease in cereals. This study was undertaken to estimate progeny means and variances in each of five winter triticale and winter wheat crosses using unselected F2−derived lines in F4 or F5...

  • YEAST DEBUTS IN TESTS ON CONTROLLING WHEAT SCAB. Hardin, Ben // Agricultural Research;Jun2001, Vol. 49 Issue 6, p20 

    Provides information on field tests that will compare the performance of biological and chemical controls against the Fusarium head blight among wheat crops in the United States. Uses of the yeast, Cryptococcus nodaensis; Description of the disease; Advantage of combining chemical and biological...

  • Effects of Phospholipase C on Fusarium graminearum Growth and Development. Zhu, Qili; Zhou, Benguo; Gao, Zhengliang; Liang, Yuancun // Current Microbiology;Dec2015, Vol. 71 Issue 6, p632 

    Phospholipase C (PLC) plays important roles in regulating various biological processes in eukaryotes. Currently, little is known about the function of PLC in filamentous fungi, especially the plant pathogenic fungi. Fusarium graminearum is the causal agent of Fusarium head blight in many cereal...

  • Evaluation of genetic diversity of Fusarium head blight resistance in European winter wheat. Zwart, Rebecca S.; Muylle, Hilde; Van Bockstaele, Erik; Roldán-Ruiz, Isabel // Theoretical & Applied Genetics;Sep2008, Vol. 117 Issue 5, p813 

    Genetic diversity in relation to Fusarium head blight (FHB) resistance was investigated among 295 European winter wheat cultivars and advanced breeding lines using 47 wheat SSR markers. Twelve additional wheat lines with known FHB resistance were included as reference material. At least one SSR...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics