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ISSN : 1225-3480

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27권 3호

Prismatic shell repairs by hemoctyes in the extrapallial fluid of the Pacific Oyster, Crassostrea gigas

Prismatic shell repairs by hemoctyes in the extrapallial fluid of the Pacific Oyster, Crassostrea gigas

Cho, Sang-Man (Department of Aquaculture and Aquatic Sciences, Kunsan National University)
Jeong, Woo-Geon (Department of Marine biology and Aquaculture & Institute of Marine Industrial Science, Gyeongsang National University)
한국패류학회지 / The Korean Journal of Malacology, (P)1225-3480;
2011, v.27 no.3, pp.223-228
https://doi.org/10.9710/kjm.2011.27.3.223
Cho, Sang-Man, & Jeong, Woo-Geon. (2011). Prismatic shell repairs by hemoctyes in the extrapallial fluid of the Pacific Oyster, Crassostrea gigas. , 27(3), 223-228, https://doi.org/10.9710/kjm.2011.27.3.223

Abstract

To understand the role of hemocytes in the shell repair process, a hole was drilled in the right valves of the Pacific oyster, Crassostrea gigas, and the repair process was observed. Histological observations suggested that the exterior surface of the shell was repaired by aggregated hemocytes. The nuclei of the hemocytes were cleary stained in the regenerated shell while appearing fragmented after calcification at the $7^{th}$ day. Globular calcium granules were genegenerated from the hemocytic monolyer after 6 days of incubation which were morphologically and chemically identical with those from prismatic shell. Our finding suggested that the repaired prismatic shell was composed by aggregated hemocytes and that their endogenous calcium component might support the nucleation of calcium biomineralization during shell repair.

keywords
Pacific oyster, Crassostrea gigas Shell repair, Hemocyte, Biomineralization

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