Species of Cercospora associated with grey leaf spot of maize.

P.W. Crous, J.Z. Groenewald, M. Groenewald, P. Caldwell, U. Braun, T.C. Harrington

    Research output: Contribution to journal/periodicalArticleScientificpeer-review

    91 Citations (Scopus)
    225 Downloads (Pure)

    Abstract

    Grey leaf spot is a serious yield-reducing disease of maize (Zea mays) in many parts of the world where this crop is cultivated. The causal organism associated with the disease is Cercospora zeae-maydis. Two potential sibling species have been recognized as Groups I and II. The DNA sequences for the internal transcribed spacers (ITS1 & ITS2), the 5.8S rRNA gene, elongation factor 1-{alpha}, histone H3, actin and calmodulin gene regions suggest that Groups I and II are two distinct species. Furthermore, Cercospora zeae-maydis (Group I) can be distinguished from C. zeina sp. nov. (Group II) by its faster growth rate on artificial media, the ability to produce cercosporin, longer conidiophores, and broadly fusiform conidia. A PCR-based test that distinguishes the two species was developed using species-specific primers designed from the histone H3 gene.
    Original languageEnglish
    Pages (from-to)189-197
    JournalStudies in Mycology
    Volume55
    Publication statusPublished - 2006

    Fingerprint

    Dive into the research topics of 'Species of Cercospora associated with grey leaf spot of maize.'. Together they form a unique fingerprint.

    Cite this