Pythium Aphanidermatum
Nematosporangium aphanidermatum
Rheosporangium aphanidermatum
''Pythium aphanidermatum'' is a soil borne plant pathogen. Pythium is a genus in the class Oomycetes, which are also known as water molds. Oomycetes are not true fungi, as their cell walls are made of cellulose, instead of chitin, they are diploid in their vegetative state, and they contain coenocytic hyphae (lacking crosswalls). Also, they reproduce asexually with motile biflagelette zoospores that require water to move towards and infect a host. Sexually, they reproduce with structures called antheridium, oogonium, and oospores.
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