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Gene expression during early infection of the susceptible spring wheat cultivar Roblin with Fusarium graminearum strains producing or not DON.

ABSTRACT: Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the very susceptible spring wheat cultivar Roblin inoculated with either water (H2O), a Fg strain (GZ3639) producing the mycotoxin deoxynivalenol (+DON), or a GZ3639-derived Fg strain which has been inactivated at the Tri5 locus (-DON).

ORGANISM(S): Triticum aestivum

PROVIDER: GSE54554 | GEO | 2015/06/03

SECONDARY ACCESSION(S): PRJNA237030

REPOSITORIES: GEO

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Gene expression during early infection of the susceptible spring wheat cultivar Roblin with Fusarium graminearum, the major causal agent of fusarium head blight in wheat

Project description:Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the very susceptible spring wheat cultivar Roblin inoculated with water (H2O) or Fg.

2015-06-03 | GSE36283 | GEO

Gene expression during early infection of the resistant spring wheat cultivar Wuhan1 with Fusarium graminearum, the major causal agent of fusarium head blight in wheat

Project description:Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the resistant spring wheat cultivar Wuhan1 inoculated with water (H2O) or Fg.

2015-06-03 | GSE54553 | GEO

Gene expression during early infection of the resistant spring wheat cultivar NuyBay with Fusarium graminearum, the major causal agent of fusarium head blight in wheat

Project description:Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the resistant spring wheat cultivar NuyBay inoculated with water (H2O) or Fg.

2015-06-03 | GSE54552 | GEO

Gene expression in near isogenic spring wheat lines carrying or not the 2DL FHB resistance QTL during early infection with Fusarium graminearum, the major causal agent of fusarium head blight in wheat

Project description:Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from near isogenic spring wheat lines carrying or not the FHB resistance QTL 2DL, after inoculation with water (H2O) or Fg; two inoculation methods were also compared, point and spray inoculation.

2015-06-03 | GSE54550 | GEO

Gene expression in near isogenic spring wheat lines carrying different combinaison of the FHB resistance QTLs 2DL, 3BS and 5A during early infection with Fusarium graminearum, the major causal agent of fusarium head blight in wheat

Project description:Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from near isogenic spring wheat lines carrying different combinaison of the FHB resistance QTLs 2DL, 3BS and 5A, after inoculation with water (H2O) or Fg; the point inoculation method was used.

2015-06-03 | GSE54555 | GEO

Gene expression during early infection of the resistant winter wheat cultivar Dream with Fusarium graminearum, the major causal agent of fusarium head blight in wheat

Project description:Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes). This study compare the gene expression profile in wheat spikelets from the resistant winter wheat cultivar Dream inoculated with water (H2O) or Fg.

2015-06-03 | GSE54551 | GEO

Differential transcriptome analyses of three wheat genotypes in their response to Fusarium Head Blight and trichothecenes

Project description:Fusarium Head Blight (FHB) is a disease of wheat and other cereal crops, where Fusarium graminearum and related species infects the wheat inflorescence during and post-anthesis. The fungus produces trichothecene toxins that accumulate in the grain of infected head, and are required for disease spread. Microarrays were used to observe differential gene expression in the uninoculated spikelets of FHB-challenged wheat spikes in three wheat genotypes. A summary of our findings will be published in Plant Pathology. Three wheat genotypes were used: (1) 'Superb', an FHB-susceptible Canadian wheat cultivar; (2) GS-1-EM0040 (CIMMYT11x'Superb'*2), a double haploid line with good resistance to initial infection (Type 1 resistance), and moderate resistance to disease spread (Type 2 resistance); and (3) GS-1-EM0168 (CM82036x'Superb'*2), a double haploid line with moderate Type 1 resistance, and good Type 2 resistance. Five inocula were used: (A) water, (B) FgTri5+ (GZ3639, a trichothecene-producing F. graminearum strain); (C) FgTri5- (GZT40, a trichothecene-non-producing mutant of the F. graminearum strain GZ3639); (D) FgTri5 supplemented with deoxynivalenol (DON), which is the main trichothecene produced by FgTri5+; and (E) DON. The inocula were injected into two spikelets near the center of the spike during early stages of anthesis, and spikelets above and below the inoculation point were collected at 3, 8, and 24 h after inoculation. A zero-hour un-inoculated control was also collected from each line. Total RNA was extracted from collected spikelets, and microarray analysis was perfomed using the Affymetrix Wheat GeneChip.

2011-08-31 | E-GEOD-28973 | biostudies-arrayexpress

Gene expression during priming-induced resistance to fusarium head blight in wheat as revealed by two distinct mutants of Fusarium graminearum

Project description:Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affects the flowering heads (or spikes) and developing seeds. This study compare the gene expression profile in wheat spikelets (spk 2) inoculated with either water (mock treatment) or a pathogenic strain of Fusarium graminearum (WT); spikelets 2 were inoculated 24 hrs after a neighbour spikelet (spk 0) was treated with either water or F. graminerum mutant strain Tri6Δ or NoxABΔ. Spikelets 2 were sampled 8 and 24 hrs after the second treatment.

2015-05-28 | GSE55653 | GEO

RNA profiling of Fusarium head blight-resistant wheat addition lines containing the Thinopyrum elongatum chromosome 7E

Project description:Fusarium head blight (FHB) is a major disease of cereal crops caused by the fungus Fusarium graminearum (Fg). FHB affecting the flowering heads (or spikes). A FHB resistance locus has been identified on the chromosome 7E of the wild wheat relative Thinopyrum elongatum (Th.e.). That chromosome (7E) or a long arm fragment of it (7EL) have been transferred as additions in the wheat background 'Chinese Spring' (CS). The two addition lines are resistant to FHB while 'Chinese Spring' is moderately susceptible to it. The mechanism of resistance is not known. The analysis of this work is published in the Canadian Journal of Plant Pathology (Wang et al, 2010). We used the wheat microarray to determine the global expression profil in inoculated spikelets of the addition and parental lines, after water or Fg treatment, with samplings at 2 and 4 days after inoculation (DAI).

2010-06-23 | E-GEOD-21386 | biostudies-arrayexpress

Comparative effect of DON and plant or microbial biotransformation of DON on gene expression of piglets jejunal explants

Project description:Deoxynivalenol (DON) is a frequent mycotoxin in grains, produced by Fusarium fungi, which demonstre multiple side effects such as modulation of immune responses, reduced feed intake and weight gain or impairment of the intestinal barrier function. Among animal species, pigs are the best model for humans and are very sensitive to DON. In wheat, DON can be conjugated to glucose to form DON-3-β-D-glucoside (D3G). Some bacteria isolated from digestive tracts or soil, are also able to de-epoxydize or epimerize DON to metabolites such as deepoxy-deoxynivalenol (DOM-1) or 3-epi-deoxynivalenol (epi-DON). The toxicity of these DON metabolites is poorly documented. By the way of ingestion, the intestine is the first organ exposed to these molecules and so constitute a relevant model. The aim of this study was to compare the intestinal toxicity of three DON metabolites (D3G, DOM-1 and epi-DON) with the one of DON. Intestinal explants from 6 pigs were treated with 10mM DON, D3G, DOM-1 or epi-DON for 4 hours and transcriptomic analysis was performed using an “Agilent Porcinet 60K”.

2016-07-20 | GSE66918 | GEO

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