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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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초록· 키워드
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This study was conducted to find out biological response of bivalves exposed to tributyltin chloride(TBTCl). The results of the study confirmed that TBTCl induce the reduction of oxygen consumption rateand histopathological feature in the gill structure of equilateral venus, Gomphina veneriformis. The experi-mental groups consisted of a control and 3 TBTCl exposure groups (0.4, 0.6 and 0.8 yg TBTCl L') and theexperimental period was 36 weeks. For histological analysis, gill tissues were fixed in Bouin's fluid andthen stained H-E stain, AB-PAS (PH 2.5) reaction and Masson's trichrome stain after having serially sec-tioned the tissue by paraffin method at thickness of 4-6 (an. The oxygen consumption rate was not signifi-cantly different between the control and exposure groups at 4 weeks, but in all exposure groups at 28 weeks,it was significantly different to the control. Gill of G. veneriformis had demibranch that attached two sheetsof lamellae and a lamella was composed of numerous filaments, numbering 25 on average. The frontal fila-ment zone had three types of cilia; frontal, latero-frontal and lateral depending on locations while the lateralcilia were the longest and largest in number. The mucous cells observed in filaments were more abundant in(542c) in AB-PAS (PH 2.5) reaction. Gill exposed to TBTCl was extended hemolymph sinus and increased hemocytes at 4 weeks, and then it showed increases of mucous cells and partially disappearance of frontalcilia. In the group of 0.8 yg TBTCl L' at 12 weeks, hypertrophy of frontal and latero-frontal epithelia wasobserved. Also it observed m decrease of mucous cell containing weekly acid mucosubstance and appearedpartially destruction muscle fiber bundle, In the groups of 0.4 and 0.6 ug TBTCl L' at 36 weeks, it appearedpartially modification of epithelia and in 0.8 us TBTCl L' group, observed filaments that come out chiti-nous rod from disappearance of frontal and latero-frontal epithelia.
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참고문헌 (49)
참고문헌 신청
Abel, P.D. / 1976 / Effects of some pollutants on the filtration rate of Mytilus edulis / Mar. Poll. Bull 7:228~231
Allen, J.A. / 1962 / Preliminary experiments on the feeding and excretion of bivalves using Phaeodactylum labelled with 32P / J. Mar. Biol. Ass. U.K 42:609~623
Asmus, R.M. / 1993 / Phytoplankton-mussel bed interactions in intertidal ecosystems, In: Bivalve filter feeders in estuarine and coastal ecosystem processes NATO, A.S.I. Series / Springer-Verlag :57~84
Beninger, P.G. / 1998 / New observations of the gills of Placopecten magellanicus (Mollusca: Bivalvia), and implications for nutrition / Mar. Biol 98:61~70
Bigas, M. / 2001 / Cytological effects of experimental exposure to Hg on the chilled epithelium of the European flat oyster Ostrea edulis: ultrastructural and quantitative changes related to bioaccumulation / Tissue Cell 33:178~188
Allen, J.A. / 1962 / Preliminary experiments on the feeding and excretion of bivalves using Phaeodactylum labelled with 32P / J. Mar. Biol. Ass. U.K 42:609~623
Asmus, R.M. / 1993 / Phytoplankton-mussel bed interactions in intertidal ecosystems, In: Bivalve filter feeders in estuarine and coastal ecosystem processes NATO, A.S.I. Series / Springer-Verlag :57~84
Beninger, P.G. / 1998 / New observations of the gills of Placopecten magellanicus (Mollusca: Bivalvia), and implications for nutrition / Mar. Biol 98:61~70
Bigas, M. / 2001 / Cytological effects of experimental exposure to Hg on the chilled epithelium of the European flat oyster Ostrea edulis: ultrastructural and quantitative changes related to bioaccumulation / Tissue Cell 33:178~188
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