Pythium debaryanum

Pythium debaryanum
	Photographs enlarged from portions of a motion photomicrograph, showing the method of cell wall penetration by Pythium hyphae.; A. — Shows hypha growing toward the potato cell wall.; B. — Shows hypha attached to wall and about to penetrate.; C. — The tip has just broken through the wall.; D. — The penetration is complete. Note the black line at the point where the hypha penetrates the wall. This may be due to a rolling up of the potato cell wall about the hypha or to a difference in refraction caused by compression of the wall.
Scientific classification
Domain:	Eukaryota
Clade:	Sar
Clade:	Stramenopiles
Clade:	Pseudofungi
Class:	Oomycetes
Order:	Peronosporales
Family:	Pythiaceae
Genus:	Pythium
Species:	P. debaryanum
Binomial name
	Pythium debaryanum; R. Hesse (1874)
Synonyms
	Eupythium debaryanum (R. Hesse) Nieuwl., (1916)

Pythium debaryanum is a species of water mould in the family Pythiaceae. It is known as a plant pathogen on many kinds of wild and cultivated plants, including peanut, beet, eucalyptus, tobacco, and pine trees. The plants develop damping off, a disease state.^[1]