gregarines


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Related to gregarines: Gregarinia, Gregarinasina

gregarines

low pathogenicity protozoans commonly infecting the gut of shrimps.
References in periodicals archive ?
The white masses investigated in the present study do not display any of the gregarine structures (i.
a new neogamus gregarine, parasite of the gonads of Cucumaria frondosa (Gunn.
In contrast, the multicellular eukaryotes and the gregarines often showed significant year-to-year changes, but trends of any kind were observed to be much rarer.
This tendency for year-to-year variations to exist without trend was also typical for the most common parasite, the gregarine Nematopsis: examples include Nematopsis in the gill tissue of Eastern Gulf oysters and Pacific Central mytilids, Nematopsis in the mantle tissue of Pacific Central and Southern California mussels and in Southern Gulf and Western Gulf oysters, and Nematopsis in the body tissue of Southeast Coast and Western Gulf oysters and Pacific Central mytilids.
whereas absence of host reaction by gregarines of the genus Nematopsis in the gut epithelial cells was reported by Winstead et al.
Histological examination showed gregarine protozoan Nematopsis sp.
The oocysts of this gregarine protozoan were pyriform in shape and measured 20 [micro]m (range, 18-22 [micro]m) in length and 15[micro]m (range, 11-16 [micro]m) m in width (n = 30).
Gregarine parasites alternate hosts, having the reproductive and vegetative phase in the intestines of xanthid crabs, and sporogony in oysters.
gill and digestive tract), as were the gregarines (viz.
Gregarines are widely distributed in oysters along the East and Gulf coasts (Landau & Galtsoff 1951, Otto et al.
Mytilids and oysters were not significantly different from each other, however; thus, the gregarines were primarily responsible for the higher prevalence of parasitism in oysters.
Seasonality, prevalence and pathogenicity of the gregarine Ascogregarina taiwanensis (Apicomplexa: Lecudinidae) in mosquitoes from Florida.