class Oomycetes
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| Noun | 1. | class Oomycetes - nonphotosynthetic fungi that resemble algae and that reproduce by forming oospores; sometimes classified as protoctists class - (biology) a taxonomic group containing one or more orders Mastigomycota, Mastigomycotina, subdivision Mastigomycota, subdivision Mastigomycotina - fungi in which the spores and gametes are motile; in some systems placed in the Phycomycetes group with the Zygomycota order Saprolegniales, Saprolegniales - order of chiefly aquatic fungi order Peronosporales, Peronosporales - order of chiefly parasitic lower fungi: Albuginaceae and Peronosporaceae and Pythiaceae family Plasmodiophoraceae, Plasmodiophoraceae - family of fungi often causing hypertrophy in seed plants |
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