Mycobiology.
2020 Aug;48(4):304-312. 10.1080/12298093.2020.1788259.
Plasmopara elegantissima sp. nov. (Oomycota, Peronosporales), a Downy Mildew Species Specialized to Impatiens textori (Balsaminaceae)
- Affiliations
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- 1College of Natural Sciences, Department of Biology, Kunsan National University, Gunsan, South Korea
- 2Department for Biological Sciences, Institute of Ecology, Evolution and Diversity, Goethe University Frankfurt am Main, Frankfurt am Main, Germany
- 3Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
- 4Division of Environmental Science and Ecological Engineering, Korea University, Seoul, South Korea
- 5Division of Environmental Science and Ecological Engineering, Korea University, Seoul, South Korea
- KMID: 2509077
- DOI: http://doi.org/10.1080/12298093.2020.1788259
Abstract
- Over the past 15 years, downy mildew became the most destructive foliar disease in cultivated Impatiens species (Balsaminaceae) worldwide. A previous study had revealed that the causal agent was not Plasmopara obducens (Oomycota, Peronosporales) but Plasmopara destructor on Impatiens walleriana, and Plasmopara velutina on Impatiens balsamina. This hints to a relatively high degree of specialization of Plasmopara on Balsaminaceae. Therefore, it was the aim of the present study to perform multigene phylogenetic analysis and detailed morphological investigation for several Korean downy mildew samples parasitic to cultivated I. walleriana, and I. balsamina, but also to a northeast Asian wild plant, Impatiens textori. It was revealed that I. textori harbors a new species, which is introduced and described here as Plasmopara elegantissima.
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