Open AccessTranscriptome profiling of the response of Mycosphaerella graminicola isolates to an azole fungicide using cDNA microarrays
Author(s) -
COOLS HANS J.,
FRAAIJE BART A.,
BEAN TIM P.,
ANTONIW JOHN,
LUCAS JOHN A.
Publication year - 2007
Publication title -
molecular plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.945
H-Index - 103
eISSN - 1364-3703
pISSN - 1464-6722
DOI - 10.1111/j.1364-3703.2007.00411.x
Subject(s) - mycosphaerella graminicola , biology , fungicide , graminicola , azole , transcriptome , dna microarray , wrky protein domain , complementary dna , microarray , tebuconazole , oomycete , microbiology and biotechnology , fungus , gene , botany , pathogen , genetics , gene expression , antifungal
SUMMARY Resistance to azole antifungals is a major problem in the control of diseases caused by fungal pathogens of both humans and plants. Potential for the development of azole resistance in the wheat leaf blotch pathogen Mycosphaerella graminicola , the causal agent of the most economically significant foliar disease of wheat in north‐western Europe, is now of particular concern after the recent emergence of widespread resistance to quinone outside inhibitor fungicides. Using a cDNA microarray representing around 25% of the genome, we have profiled the transcriptional response of M. graminicola to epoxiconazole, currently the most widely used azole fungicide on cereal crops. By comparing the transcription profiles of two M. graminicola isolates with contrasting sensitivities to epoxiconazole we show qualitative and quantitative differences in differentially expressed genes, including those involved in ergosterol biosynthesis, mitochondrial respiration and transport mechanisms. This represents the first study investigating the response of a plant pathogenic fungus to a fungicide using cDNA microarray technology.