Polymyxa graminis and the cereal viruses it transmits: a research challenge

K. Kanyuka, Elaine Ward, M. J. Adams

Research output: Contribution to journalLiterature reviewpeer-review

107 Citations (Scopus)


Polymyxa graminis is a eukaryotic obligate biotrophic parasite of plant roots that belongs to a poorly studied discrete taxonomic unit informally called the 'plasmodiophorids'. P. graminis is nonpathogenic, but has the ability to acquire and transmit a range of plant viruses which cause serious diseases in cereal crop species and result in significant yield reductions. The viruses are protected from the environment within A graminis resting spores ('cysts') that may remain dormant but viable for decades (probably until a suitable host plant is encountered). The persistent, soilborne nature of these diseases makes the use of virus-resistant crop varieties currently the only practical and environmentally friendly means of control.

Original languageEnglish
Pages (from-to)393-406
Number of pages14
JournalMolecular Plant Pathology
Issue number5
Publication statusPublished - Sept 2003


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