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Scientific classification
Domain: Eukaryota
(unranked): SAR
Superphylum: Heterokonta
Class: Oomycetes
Order: Saprolegniales
Family: Leptolegniaceae
Genus: Aphanomyces

about 45

Aphanomyces is a genus of water moulds. As of 2003 there were about 45 described species.[1] Many of these water moulds are known as economically important pathogens of species of plants and animals, including fish, crustaceans, and agricultural crop plants. Aphanomyces water moulds are "one of the most important yield-limiting factors in production of legumes and sugarbeet."[1]

Some of these water moulds are host-specific, such as A. iridis, which only infects irises. Others can infest several hosts, such as A. euteiches, which grows on several legumes.[1] The disease that manifests in plants infected with these water moulds is sometimes known simply as Aphanomyces root rot or common root rot.[1]

Species include:[1]


  1. ^ a b c d e Grünwald, N. J. and C. J. Coyne, eds.Proceedings of the Second International Aphanomyces Workshop. Pasco, Washington, June 17–18, 2003. USDA ARS.
  2. ^ Vandersea, M. W., et al. (2006). Molecular assays for detecting Aphanomyces invadans in ulcerative mycotic fish lesions. Appl Environ Microbiol 72(2) 1551-57.
  3. ^ Lilley, J. H., et al. (2003). Molecular characterization of the fish-pathogenic fungus Aphanomyces invadans. J Fish Dis 26(5) 263-75.
  4. ^ Mondal, S. K. and A. B. De. (2001). A fatal oomycotic disease of the fresh water fish Aplocheilus panchax in India caused by Aphanomyces laevis. Mycopathologia 154 21-24.
  5. ^ Humaydan, H. and P. H. Williams. (1978). Factors affecting in vitro growth and zoospore production by Aphanomyces raphani. Phytopathology 68 377-81.
  6. ^ Takuma, D., et al. (2010). A new species, Aphanomyces salsuginosus sp. nov., isolated from ice fish Salangichthys microdon. Mycoscience 51(6) 432–42.