Aphanomyces

---

title: "Aphanomyces" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["oomycete-genera", "saprolegniales"] description: "Genus of single-celled organisms" topic_path: "general/oomycete-genera" source: "https://en.wikipedia.org/wiki/Aphanomyces" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Genus of single-celled organisms ::

|image = |image_alt = mycelial filaments from Aphanomyces astaci on membranes of Pacifastacus leniusculus |image_caption = mycelial filaments from Aphanomyces astaci on membranes of Pacifastacus leniusculus |taxon = Aphanomyces |authority = |subdivision_ranks = Species |subdivision = about 45

Aphanomyces is a genus of water moulds. As of 2003 there were about 45 described species. Many of these water moulds are known as ecologically 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."

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. The disease that manifests in plants infected with these water moulds is sometimes known simply as Aphanomyces root rot or common root rot.

Species include:

• 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, epizootic ulcerative syndrome, mycotic granulomatosis
• Aphanomyces iridis
• Aphanomyces irregularis
• Aphanomyces keratinophilus
• Aphanomyces laevis – cotton-wool disease of fish
• 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
• Aphanomyces salsuginosus
• Aphanomyces scaber
• Aphanomyces sparrowii
• Aphanomyces stellatus
• Aphanomyces volgensis

References

References

1. Grünwald, N. J. and C. J. Coyne, eds.[http://www.science.oregonstate.edu/bpp/labs/grunwald/publications/ProceedingsAphanomycesWorkshop.pdf Proceedings of the Second International ''Aphanomyces'' Workshop.] Pasco, Washington, June 17–18, 2003. USDA ARS.
2. Vandersea, M. W., et al. (2006). [http://aem.asm.org/content/72/2/1551.long 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). [https://www.ncbi.nlm.nih.gov/pubmed/12962235 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). [https://link.springer.com/article/10.1023%2FA%3A1015252717966#page-1 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). [https://www.apsnet.org/publications/phytopathology/backissues/Documents/1978Articles/Phyto68n03_377.pdf Factors affecting ''in vitro'' growth and zoospore production by ''Aphanomyces raphani''.] ''Phytopathology'' 68 377-81.
6. Takuma, D., et al. (2010). [http://www.sciencedirect.com/science/article/pii/S1340354010701388 A new species, ''Aphanomyces salsuginosus'' sp. nov., isolated from ice fish ''Salangichthys microdon''.] ''Mycoscience'' 51(6) 432–42.

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::