Myxozoa

Myxozoa are a group of parasitic microorganisms that are related to cnidarians. They are microscopic and have complex life cycles. They are known to infect fish, annelids, and bryozoans.

Taxonomy[edit | edit source]

Myxozoa was originally classified as a protozoan but later reclassified as a cnidarian due to its similar genetic and morphological characteristics. The group contains over 1300 species, divided into two orders: Myxosporea and Malacosporea.

Morphology[edit | edit source]

Myxozoa are microscopic and have a complex structure. They consist of a single cell surrounded by a protective shell, with two types of spores: myxospores and actinospores. Myxospores are produced in the host's tissues, while actinospores are produced in the alternate host.

Life Cycle[edit | edit source]

The life cycle of Myxozoa involves two hosts. The primary host is usually a fish, where the parasite forms myxospores. These spores are released into the water and ingested by the secondary host, usually an annelid or bryozoan. In the secondary host, the spores transform into actinospores, which are released back into the water to infect new fish hosts.

Pathology[edit | edit source]

Myxozoa can cause a variety of diseases in fish, including myxobolus cerebralis, which causes whirling disease in trout. They can also cause significant economic losses in aquaculture.

Treatment and Control[edit | edit source]

Treatment of Myxozoa infections is difficult due to the complex life cycle of the parasite. Control measures include good hygiene practices in aquaculture and the use of drugs such as praziquantel.

See Also[edit | edit source]

Myxozoa Resources
Need Help Finding a Doctor? Need help finding a doctor or specialist anywhere in the world? Explore our world directory. WikiMD's DocFinder can assist you in locating millions of physicians.	Medical Knowledge Access the latest research - Most recent articles Ongoing trials.