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词条 Psorosperm
释义

  1. References

Psorosperm (from the Greek ψωρα itch and σπερμα seed) 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 (which includes the species Psorospermium haeckeli) 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.[1]

The term was introduced in German (as Psorospermien) by J. Müller in 1841.[2][3]

Psorosperm was at one point believed to be the cause of Darier's disease.[4][5]

"Psorospermiasis" is classified under 136.4 in ICD-9.[6]

References

1. ^{{cite journal |vauthors=Ragan MA, Goggin CL, Cawthorn RJ, etal |title=A novel clade of protistan parasites near the animal-fungal divergence |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=93 |issue=21 |pages=11907–12 |date=October 1996 |pmid=8876236 |pmc=38157 |doi= 10.1073/pnas.93.21.11907|url=}}
2. ^Müller J. 1841: Über Psorospermien. Arch. Anat. Physiol. Wissensch. Med. 5: 477–496
3. ^{{cite book|author=Revere Randolph Gurley|title=The Myxosporidia, or Psorosperms of fishes: and the epidemics produced by them|url=https://books.google.com/books?id=g9wqAAAAYAAJ&pg=PA72|accessdate=10 April 2010|year=1894|publisher=Govt. print. off.|pages=72}}
4. ^{{cite web |url=http://archderm.highwire.org/cgi/content/summary/43/2/223 |title=Arch Derm Syphilol -- Excerpt: KERATOSIS FOLLICULARIS (DARIER'S DISEASE) A VITAMIN A DEFICIENCY DISEASE, February 1941, PECK et al. 43 (2): 223 |format= |work= |accessdate=}}
5. ^F. J. Darier. De la psorospermose folliculaire végétante. Étude anatomo-pathologique d'une affection cutanée non décrite ou comprise dans le groupe des acnés sebacées, cornées, hypertrophiantes, des kératoses (ichtyoses) folliculaires, etc. Annales de dermatologie et de syphilographie, Paris, 1889, 10: 597-612.
6. ^{{cite web |url=http://www.icd9data.com/2009/Volume1/001-139/130-136/136/136.4.htm |title=2009 ICD-9-CM Diagnosis Code 136.4 : Psorospermiasis |work= |accessdate=}}
{{Eukaryota classification}}{{parasite-stub}}

1 : Parasitic eukaryotes

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