Plasmopara obducens
Species of single-celled organism
From Wikipedia, the free encyclopedia
Plasmopara obducens is a species of oomycete that causes Impatiens downy mildew. It was first described on Impatiens noli-tangere in Germany in 1877. Plasmopara obducens is known from native[where?] species of Impatiens since the 1800s, but outbreaks on cultivated varieties of Impatiens walleriana started in 2003 in the United Kingdom and in 2004 in the United States.[1] The outbreak spread worldwide by 2016.[2]
| Plasmopara obducens | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Sar |
| Clade: | Stramenopiles |
| Division: | Oomycota |
| Class: | Peronosporomycetes |
| Order: | Peronosporales |
| Family: | Peronosporaceae |
| Genus: | Plasmopara |
| Species: | P. obducens |
| Binomial name | |
| Plasmopara obducens (J. Schröt.) J. Schröt., (1886) | |
| Synonyms | |
| |
Morphology
Disease symptoms
Taxonomy
J. Schröter originally placed the species in the genus Peronospora but later moved it to the genus Plasmopara. [5] Some authors believe the outbreaks on I. walleriana and I. balsamina are not caused by P. obducens but two new species P. destructor and P. velutina. [3]
