Project description:The plant pathogenic fungus Fusarium graminearum (Fgr) creates economic and health risks in cereals agriculture. Fgr causes head blight (or scab) of wheat and stalk rot of corn, reducing yield, degrading grain quality and polluting downstream food products with mycotoxins. Fungal plant pathogens must secrete proteases to access nutrition and to breakdown the structural protein component of the plant cell wall. Research into the proteolytic activity of Fgr is hindered by the complex nature of the suite of proteases secreted. We used a systems biology approach comprising genome analysis, transcriptomics and label-free quantitative proteomics to characterise the peptidases deployed by Fgr during growth. A combined analysis of published microarray transcriptome datasets revealed seven transcriptional groupings of peptidases based on in vitro growth, in planta growth, and sporulation behaviours. An orbitrap MS/MS proteomics technique defined the extracellular proteases secreted by Fusarium graminearum.
Project description:We report the transcriptome profile of different cultivars of Fusarium graminearum-infected wheat grains, aiming to search for some different expression genes and pathways to reveal the difference between wheat cultivars.
Project description:We performed transcriptome analysis using an Agilent custom Fusarium graminearum 8X15k microarray ver1.2 to profile the effects of L-Thr treatment in F. graminearum.
Project description:The plant pathogenic fungus Fusarium graminearum (Fgr) creates economic and health risks in cereals agriculture. Fgr causes head blight (or scab) of wheat and stalk rot of corn, reducing yield, degrading grain quality and polluting downstream food products with mycotoxins. Fungal plant pathogens must secrete proteases to access nutrition and to breakdown the structural protein component of the plant cell wall. Research into the proteolytic activity of Fgr is hindered by the complex nature of the suite of proteases secreted. We used a systems biology approach comprising genome analysis, transcriptomics and label-free quantitative proteomics to characterise the peptidases deployed by Fgr during growth. A combined analysis of published microarray transcriptome datasets revealed seven transcriptional groupings of peptidases based on in vitro growth, in planta growth, and sporulation behaviours. An orbitrap MS/MS proteomics technique defined the extracellular proteases secreted by Fusarium graminearum. This dataset includes the cellular control sample that was analysed with shotgun mass-spec proteomics followed SearchGUI and Peptide shaker searches.
Project description:When stress strikes, cells incur damages and initiate adaptive responses, including perturbation of RNA splicing, modulation of nuclear RNA export, and formation of stress granules. Despite their central role, knowledge of the composition and mechanisms governing stress granules in fungi remains scarce. Here, we describe a transcriptome-wide characterization of stress granules in Fusarium graminearum. Through stress granule purification coupled with RNA-sequencing, we find that heat shock induces a distinct enrichment of intron-containing transcripts within stress granules compared to physiological conditions. Moreover, we show co-localization of stress granules with the nuclear RNA export factor FgYra1 within the nucleus, linking stress granule formation to the RNA export system. Overall, this study defines the molecular architecture of F. graminearum stress granules and illustrates their functional significance within the cell.
Project description:The analysis of the Fusarium graminearum transcriptome during symptomless and symptomatic infections of wheat floral tissue at 7 days post infection, to identify the correct spatio-temperol regulation of multiple virulence strategies.