Regional Economic Impacts of Fusarium Head Blight in Wheat and Barley

Nganje, William E.; Bangsund, Dean A.; Leistritz, F. Larry; Wilson, William W.; Tiapo, Napoleon M.

doi:10.1111/j.1467-9353.2004.00183.x

Cited by 213 publications

(175 citation statements)

References 3 publications

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“…For example, FHB caused an estimated loss of approx. US$2 billion in the Northern Great Plains and Central US region in 1993-2001 (Nganje et al, 2004). FHB is predominantly caused by Fusarium graminearum (O'Donnell et al, 2004), but other Fusarium species including F. culmorum (Kollers et al, 2013) and F. pseudograminearum (Chakraborty et al, 2010) can also cause the disease.…”

Section: Hemibiotrophic and Necrotrophic Fungal Pathogensmentioning

confidence: 99%

Brachypodium as an emerging model for cereal–pathogen interactions

et al. 2015

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Background Cereal diseases cause tens of billions of dollars of losses annually and have devastating humanitarian consequences in the developing world. Increased understanding of the molecular basis of cereal host-pathogen interactions should facilitate development of novel resistance strategies. However, achieving this in most cereals can be challenging due to large and complex genomes, long generation times and large plant size, as well as quarantine and intellectual property issues that may constrain the development and use of community resources. Brachypodium distachyon (brachypodium) with its small, diploid and sequenced genome, short generation time, high transformability and rapidly expanding community resources is emerging as a tractable cereal model.Scope Recent research reviewed here has demonstrated that brachypodium is either susceptible or partially susceptible to many of the major cereal pathogens. Thus, the study of brachypodium-pathogen interactions appears to hold great potential to improve understanding of cereal disease resistance, and to guide approaches to enhance this resistance. This paper reviews brachypodium experimental pathosystems for the study of fungal, bacterial and viral cereal pathogens; the current status of the use of brachypodium for functional analysis of cereal disease resistance; and comparative genomic approaches undertaken using brachypodium to assist characterization of cereal resistance genes. Additionally, it explores future prospects for brachypodium as a model to study cereal-pathogen interactions.Conclusions The study of brachypodium-pathogen interactions appears to be a productive strategy for understanding mechanisms of disease resistance in cereal species. Knowledge obtained from this model interaction has strong potential to be exploited for crop improvement.

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Section: Hemibiotrophic and Necrotrophic Fungal Pathogensmentioning

confidence: 99%

Brachypodium as an emerging model for cereal–pathogen interactions

et al. 2015

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“…are among the most important toxigenic fungi (1)(2)(3)(4), causing the cereal disease Fusarium head blight (FHB). Epidemics caused by FHB resulted in economic losses of 2.7 billion U.S. dollars in U.S. wheat and barley production between 1998 and 2000 (5). The most prevalent mycotoxins produced by Fusarium spp.…”

Section: Introductionmentioning

confidence: 99%

Fusarium Mycotoxins: Overlooked Aquatic Micropollutants?

Bucheli¹,

Wettstein²,

Hartmann³

et al. 2008

J. Agric. Food Chem.

111

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Deoxynivalenol and zearalenone are among the most prevalent toxins produced by Fusarium spp. They have been investigated in food and feed products for decades but rarely in the environment. We therefore established solid-phase extraction and liquid chromatography-mass spectrometry (LC-MS) methods to quantify these mycotoxins at trace concentrations in aqueous natural samples. In a model emission study, we inoculated a winter wheat field with Fusarium graminearum and subsequently monitored deoxynivalenol and zearalenone in its drainage water. Before during and after harvest in June and July 2007, these toxins were emitted in concentrations from 23 ng/L to 4.9 µg/L for deoxynivalenol and from not detected to 35 ng/L for zearalenone. Simultaneously, in July and August 2007, deoxynivalenol was also detected in a number of Swiss rivers in concentrations up to 22 ng/L and zearalenone was present in several river samples below the method quantification limit. Other mycotoxins might be emitted from Fusarium-infected fields as well, because some of them are produced in similar amounts as deoxynivalenol and zearalenone and exhibit similar or even higher water solubility than deoxynivalenol. The ecotoxicological consequences of the presence of mycotoxins in surface waters remain to be elucidated.

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“…Fusarium head blight (FHB) epidemics and the chronic crown rot (FCR) problem can cause up to AUD$ 100 million annual losses in Australia Brennan, 2010, 2009) and FHB reportedly causes up to US$ 2.7 billion losses in the United States of America (Nganje et al, 2002). In addition to yield reductions, the contamination of the infected plants, including the grains, with mycotoxins produced by the fungus is a major issue particularly with FHB (Desjardins et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

High-throughput FACS-based mutant screen identifies a gain-of-function allele of the Fusarium graminearum adenylyl cyclase causing deoxynivalenol over-production

Blum

Benfield

Stiller

et al. 2016

Fungal Genetics and Biology

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., High-throughput FACS-based mutant screen identifies a gain-of-function allele of the Fusarium graminearum adenylyl cyclase causing deoxynivalenol over-production, Fungal Genetics and Biology (2016), doi: http://dx.doi. org/10.1016/j.fgb. 2016.02.005 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ABSTRACTFusarium head blight and crown rot, caused by the fungal plant pathogen Fusarium graminearum, impose a major threat to global wheat production. During the infection, plants are contaminated with mycotoxins such as deoxynivalenol (DON), which can be toxic for humans and animals. In addition, DON is a major virulence factor during wheat infection. However, it is not fully understood how DON production is regulated in F. graminearum. In order to identify regulators of DON production, a high-throughput mutant screen using Fluorescence Activated Cell Sorting (FACS) of a mutagenized TRI5-GFP reporter strain was established and a mutant over-producing DON under repressive conditions identified. A gain-of-function mutation in the F. graminearum adenylyl cyclase (FAC1), which is a known positive regulator of DON production, was identified as the cause of this phenotype through genome sequencing and segregation analysis. Our results show that the high-throughput mutant screening procedure developed here can be applied for identification of fungal proteins involved in diverse processes.

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Regional Economic Impacts of Fusarium Head Blight in Wheat and Barley

Cited by 213 publications

References 3 publications

Brachypodium as an emerging model for cereal–pathogen interactions

Brachypodium as an emerging model for cereal–pathogen interactions

Fusarium Mycotoxins: Overlooked Aquatic Micropollutants?

High-throughput FACS-based mutant screen identifies a gain-of-function allele of the Fusarium graminearum adenylyl cyclase causing deoxynivalenol over-production

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