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Ultrastructure of Gametocyst of Parasitic Protozoan, Nematopsis sp. in Black Tiger Shrimp Penaeusmonodon from the Gulf of Thailand

Publication date: 17.02.2015

Acta Protozoologica, 2015, Volume 54, Issue 2, pp. 137 - 142

https://doi.org/10.4467/16890027AP.15.011.2736

Authors

,
Chanawat Tuntiwaranuruk
Department of Biology, Faculty of Science, Burapha University, Chonburi, Thailand
All publications →
,
Jantanee Noppharatarphakul
Microscopic Center, Faculty of Science, Burapha University, Chonburi, Thailand
All publications →
,
Jirat Boonmameepool
Faculty of Allied Health Sciences, Burapha University, Chonburi, Thailand
All publications →
E. Suchart Upatham
Faculty of Allied Health Sciences, Burapha University, Chonburi, Thailand
All publications →

Titles

Ultrastructure of Gametocyst of Parasitic Protozoan, Nematopsis sp. in Black Tiger Shrimp Penaeusmonodon from the Gulf of Thailand

Abstract

Ultrastructure of gametocyst of Nematopsis sp., a protozoa parasite of black tiger shrimp Penaeusmonodon from the Gulf of Thailand is described. Ball-shaped gametocysts of about 110–160 µm diameter were found in close contact with the intestinal wall of shrimps. Surface of the gametocyst cyst wall or capsule is wrinkled with a circular bare area at one pole that contains a central pore 4–5 µm in diameter. The interior of the gametocyst is composed of numerous gymnospores and membranous sacs. Gymnospores varied in size with an average diameter of 6–8 µm. Ball-shaped gymnospores were composed of numerous, radially arranged, cone shaped sporozoites. Average width and length of sporozoites were 0.8–1.2 µm and 3–5 µm, respectively, with their rostral part pointing outward and caudal part, inward connecting to the residual cytoplasm in the centre of a gymospore. The rostral part of the sporozoite contains an oval nucleus, rough endoplasmic reticulum, mitochondria and a group of secretory granules. Membranous sacs were composed of two types of globular granules; large electron lucid granules and small dense granules.

References

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Information

Information: Acta Protozoologica, 2015, Volume 54, Issue 2, pp. 137 - 142

Article type: Original article

Authors

Department of Biology, Faculty of Science, Burapha University, Chonburi, Thailand

Microscopic Center, Faculty of Science, Burapha University, Chonburi, Thailand

Faculty of Allied Health Sciences, Burapha University, Chonburi, Thailand

Faculty of Allied Health Sciences, Burapha University, Chonburi, Thailand

Published at: 17.02.2015

Article status: Open

Licence: None

Percentage share of authors:

Chanawat Tuntiwaranuruk (Author) - 25%
Jantanee Noppharatarphakul (Author) - 25%
Jirat Boonmameepool (Author) - 25%
E. Suchart Upatham (Author) - 25%

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English