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Psorosperm



Psorosperm is a name formerly given to a number of parasitic protozoa which produce cystlike or sporelike structures in the tissue of hosts, but now essentially obsolete. Some which affect vertebrate hosts are now identified as coccidia. Others, such as the cause of pébrine in silkworms, are now recognized as microsporidians, and some are regarded as myxosporidians. The genus Psorospermium itself is a parasite of crayfishes, and belongs to an enigmatic group of unicellular organisms which some biologists think may be related to the common ancestors of animals and fungi.

Origin

The term was introduced in German (as Psorospermien) by J. Müller in 1841. It comes from the Greek ψωρα itch and σπερμα seed.

References

On Psorospermium: M. A. Ragan et al. (1996) in Proceedings of the National Academy of Sciences of the U.S.A. 93:11907-11912

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Psorosperm". A list of authors is available in Wikipedia.
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