Aphanomyces

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]

Aphanomyces
mycelial filaments from Aphanomyces astaci on membranes of Pacifastacus leniusculus
Scientific classification
Kingdom: Chromista
Phylum: Oomycota
Order: Saprolegniales
Family: Leptolegniaceae
Genus: Aphanomyces
Species

about 45

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]

  • Aphanomyces acinetophagus
  • Aphanomyces americanus
  • Aphanomyces amphigynus
  • Aphanomyces apophysii
  • Aphanomyces astaci – crayfish plague
  • Aphanomyces balboensis
  • Aphanomyces bosminae
  • Aphanomyces brassicae
  • Aphanomyces camptostylus
  • Aphanomyces cladogamus
  • Aphanomyces cochlioides
  • Aphanomyces coniger
  • Aphanomyces daphniae
  • Aphanomyces euteiches
  • Aphanomyces exoparasiticus
  • Aphanomyces frigidophilus
  • Aphanomyces gordejevi
  • Aphanomyces helicoides
  • Aphanomyces hydatinae
  • Aphanomyces invadans – ulcerative mycosis of fish,[2] epizootic ulcerative syndrome, mycotic granulomatosis[3]
  • Aphanomyces iridis
  • Aphanomyces irregularis
  • Aphanomyces keratinophilus
  • Aphanomyces laevis – cotton-wool disease of fish[4]
  • Aphanomyces magnusii
  • Aphanomyces norvegicus
  • Aphanomyces ovidestruens
  • Aphanomyces parasiticus
  • Aphanomyces patersonii
  • Aphanomyces phycophilus
  • Aphanomyces pisci
  • Aphanomyces piscicida
  • Aphanomyces polysporis
  • Aphanomyces raphani – black root disease of radish[5]
  • Aphanomyces salsuginosus[6]
  • Aphanomyces scaber
  • Aphanomyces sparrowii
  • Aphanomyces stellatus
  • Aphanomyces volgensis

References
  1. 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.
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