Abstract
The developmental stages of a recently described microsporidian from the nucleus of hematopoietic cells of salmonid fish were found to be unique among the Microsporida. All observed stages, including meronts, sporonts, and spores were in direct contact with the host cell nucleus (principally hematopoietic cells) of chinook salmon (Oncorhynchus tshawytscha). There is no par‐asitophorous vacuole and sporogony does not involve formation of a pansporoblastic membrane as with other members of the suborder Apansporoblastina. The extrusion apparatus differentiates prior to division of sporogonial plasmodia. The spores are ovoid (1 times 2 μm) and uninucleate, and possess a coiled polar tube with 8‐12 turns. Developmental stages of the salmonid microsporidian are similar to those described for Enterocytozoon bieneusi as found in the intestinal mucosa of human AIDS patients. However, the intranuclear development, different cell types, and host infected clearly separate the salmonid and human parasites. Accordingly, the intranuclear parasite of salmonids is given the name Enterocytozoon salmonis n. sp. within the suborder Apansporoblastina.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 264-269 |
| Number of pages | 6 |
| Journal | The Journal of Protozoology |
| Volume | 38 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 1 1991 |
Fingerprint
Keywords
- Enterocytozoon salmonis
- Microspora
- salmonid anemia
- salmonid microsporidium
- taxonomy
- ultrastructure
ASJC Scopus subject areas
- Parasitology
Cite this
Enterocytozoon salmonis N. Sp. An Intranuclear Microsporidium from Salmonid Fish. / CHILMONCZYK, STEFAN; COX, WILLIAM T.; Hedrick, Ronald.
In: The Journal of Protozoology, Vol. 38, No. 3, 01.01.1991, p. 264-269.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enterocytozoon salmonis N. Sp.
T2 - An Intranuclear Microsporidium from Salmonid Fish
AU - CHILMONCZYK, STEFAN
AU - COX, WILLIAM T.
AU - Hedrick, Ronald
PY - 1991/1/1
Y1 - 1991/1/1
N2 - The developmental stages of a recently described microsporidian from the nucleus of hematopoietic cells of salmonid fish were found to be unique among the Microsporida. All observed stages, including meronts, sporonts, and spores were in direct contact with the host cell nucleus (principally hematopoietic cells) of chinook salmon (Oncorhynchus tshawytscha). There is no par‐asitophorous vacuole and sporogony does not involve formation of a pansporoblastic membrane as with other members of the suborder Apansporoblastina. The extrusion apparatus differentiates prior to division of sporogonial plasmodia. The spores are ovoid (1 times 2 μm) and uninucleate, and possess a coiled polar tube with 8‐12 turns. Developmental stages of the salmonid microsporidian are similar to those described for Enterocytozoon bieneusi as found in the intestinal mucosa of human AIDS patients. However, the intranuclear development, different cell types, and host infected clearly separate the salmonid and human parasites. Accordingly, the intranuclear parasite of salmonids is given the name Enterocytozoon salmonis n. sp. within the suborder Apansporoblastina.
AB - The developmental stages of a recently described microsporidian from the nucleus of hematopoietic cells of salmonid fish were found to be unique among the Microsporida. All observed stages, including meronts, sporonts, and spores were in direct contact with the host cell nucleus (principally hematopoietic cells) of chinook salmon (Oncorhynchus tshawytscha). There is no par‐asitophorous vacuole and sporogony does not involve formation of a pansporoblastic membrane as with other members of the suborder Apansporoblastina. The extrusion apparatus differentiates prior to division of sporogonial plasmodia. The spores are ovoid (1 times 2 μm) and uninucleate, and possess a coiled polar tube with 8‐12 turns. Developmental stages of the salmonid microsporidian are similar to those described for Enterocytozoon bieneusi as found in the intestinal mucosa of human AIDS patients. However, the intranuclear development, different cell types, and host infected clearly separate the salmonid and human parasites. Accordingly, the intranuclear parasite of salmonids is given the name Enterocytozoon salmonis n. sp. within the suborder Apansporoblastina.
KW - Enterocytozoon salmonis
KW - Microspora
KW - salmonid anemia
KW - salmonid microsporidium
KW - taxonomy
KW - ultrastructure
UR - http://www.scopus.com/inward/record.url?scp=0026162781&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026162781&partnerID=8YFLogxK
U2 - 10.1111/j.1550-7408.1991.tb04440.x
DO - 10.1111/j.1550-7408.1991.tb04440.x
M3 - Article
C2 - 1880764
AN - SCOPUS:0026162781
VL - 38
SP - 264
EP - 269
JO - Journal of Eukaryotic Microbiology
JF - Journal of Eukaryotic Microbiology
SN - 1066-5234
IS - 3
ER -