Plasmopara penniseti is the sole member of the genus Plasmopara parasitic to Poaceae, after the genus Viennotia had been described to accommodate Plasmopara oplismeni. Morphological, ultrastructural, and molecular phylogenetic data indicate that Plasmopara penniseti is not closely related to the generic type, and it is, therefore, transferred to the newly described genus Poakatesthia. The view that the genera of downy mildews with pyriform to vesicular haustoria (Basidiophora, Benua, Bremia, Paraperonospora, Plasmopara, Plasmoverna, and Protobremia) include species parasitic to Poaceae has to be discarded. All of these genera are apparently restricted to dicotyledonous hosts. © 2007 The British Mycological Society.
CITATION STYLE
Thines, M., Göker, M., Oberwinkler, F., & Spring, O. (2007). A revision of Plasmopara penniseti, with implications for the host range of the downy mildews with pyriform haustoria. Mycological Research, 111(12), 1377–1385. https://doi.org/10.1016/j.mycres.2007.09.006
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