Pythiaceae
| Pythiaceae | |
|---|---|
 |
|
| Water mould - Phytophthora forms: A: Sporangia. B: Zoospore. C: Chlamydospore. D: Oospore | |
| Scientific classification | |
| (unranked): | SAR |
| Phylum: | Heterokontophyta |
| Class: | Oomycota |
| Order: | Peronosporales |
| Family: |
Pythiaceae J. Schröt., 1893 |
| Type genus | |
|
Pythium Pringsh., 1858 |
|
| Genera | |
Pythiaceae is a family of water moulds. The family includes plant pathogenic fungus-like organisms in the genus Phytophthora; as well as serious plant and animal pathogens in the genus Pythium. The family was circumscribed by German mycologist Joseph Schröter in 1893.
The sporangia may germinate via a germ tube or by release of motile zoospores, depending on the species and the environmental conditions.
Some Pythium species cause "damping-off" diseases in young plants (seedlings).
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