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Mycosphaerella graminicola: latent infection, crop devastation and genomics


  • Claire-Louise Palmer,

    Corresponding author
    1. School of Biological Sciences, University of Bristol, Woodland Road, Clifton, Bristol, BS8 1UG. UK,
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  • Wendy Skinner

    Corresponding author
    1. IACR Long Ashton Research Station, Department of Agricultural Sciences, University of Bristol, Long Ashton, Bristol BS41 9AF, UK
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Mycosphaerella graminicola is an important pathogen of wheat, causing septoria leaf blotch disease. This review summarizes the current knowledge on disease development and control of the fungus, and discusses how molecular tools and genomics are being employed to uncover the genetic basis of pathogenicity.

Taxonomy: Mycosphaerella graminicola (Fuckel) J. Schröt. in Cohn (anamorph: Septoria tritici Roberge in Desmaz.). Kingdom Fungi, Phylum Ascomycota, Class Loculoascomycetes (filamentous ascomycetes), Order Dothideales, Genus Mycosphaerella, Species graminicola.

Host range: Bread and durum wheat (Triticum aestivum L. and T. turgidum ssp. durum L.) Disease symptoms: Initiating with the appearance of chlorotic flecks on leaves that develop into irregular sunken necrotic lesions peppered with tiny black spots (pycnidia). In addition to the necrotic tissue, the disease results in early leaf tissue senescence and therefore reduced photosynthetic capacity.

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