Pythiaceae
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Pythiaceae is a family of oomycetes. The family includes serious plant and animal pathogens in the genus Pythium. The family was circumscribed by German mycologist Joseph Schröter in 1893.
Lifecycle
- Live on land (terrestrial), and in water (aquatic), or a combination of the two (amphibious).
- Most are deadly parasites, causing root rot and damping off on plants and pythiosis on animals.
- The diploid (2N) life stage predominates, with a short haplophase initiated during sexual reproduction before the fusion of the gametes. Most species are homothallic.
Reproduction
The sporangia may germinate via a germ tube or by release of motile zoospores, depending on the species and the environmental conditions.
Economic importance
Some Pythium species cause "damping off" diseases in young plants (seedlings).
References
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- C.J. Alexopolous, Charles W. Mims, M. Blackwell et al., Introductory Mycology, 4th ed. (John Wiley and Sons, Hoboken NJ, 2004) Template:ISBN
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