지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Toxic effects of arsenic (As) and chromium (Cr) has been investigated using the sea urchin (Hemicentrotus pulcherrimus) germ cell and pluteus-larvae. The gametotoxic and embryotoxic effects of As and Cr on H. plucherrimus were each investigated at 6.25, 12.5, 25, 50, 100.
Spawning was induced by 0.5 M KCl solution and the normal fertilization and embryogenesis rates were performed for 10 min and 64 hrs after fertilization, respectively. The normal fertilization and embryogenesis rates in the control condition (not including As and Cr) were greater than 94% and 93%, respectively. The fertilization rate was not significantly changed compared with control but embryogenesis rate was significantly decreased with concentration-dependent manner.
As and Cr reduced normal embryogenesis rates and a significant reduction occurred at concentration greater than 6.25 ppb (P⁄0.01) and 25 ppb (P⁄0.05), respectively. The lowest-observedeffect-concentration (LOEC) of normal embryogenesis rate in As and Cr were each 6.25 and 25ppb, respectively. From these results, normal embryogenesis rate of H. pulcherrimus have toxic effect at greater than the 6.25 ppb concentration of As and 25 ppb concentration of Cr in marine ecosystems. These results suggest that the normal embryogenesis rates of H. pulcherrimus are very useful test method for the toxicity assessment of heavy metal as As and Cr in marine ecosystems.
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참고문헌 (21)
참고문헌 신청
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Atici T / 2008 / Ecological effect of some heavy metals (Cd, Pb, Hg, Cr) pollution of phytoplanktonic algae and zooplanktonic organisms in Sariyar Dam Reservoir in turkey / A
Beiras R / 2003 / Inttegrative assessment of marine pollution in Galician estuaries using sediment chemistry, mussel bioaccumulation, and embryo-larval toxicity bioassays / C
Beiras R / 2004 / Inhibition of embryo development of the commercial bivalves Ruditapes decussatus and Mytilus galloprovincialis by trace metals; Implication for the implemen
Bhattacharyya R / 2003 / High arsenic groundwater: mobilization, metabolism and mitigation-an overview in the Bengal Delta Plain / Mol. Cell Biochem 253 : 347 ~ 355
Atici T / 2008 / Ecological effect of some heavy metals (Cd, Pb, Hg, Cr) pollution of phytoplanktonic algae and zooplanktonic organisms in Sariyar Dam Reservoir in turkey / A
Beiras R / 2003 / Inttegrative assessment of marine pollution in Galician estuaries using sediment chemistry, mussel bioaccumulation, and embryo-larval toxicity bioassays / C
Beiras R / 2004 / Inhibition of embryo development of the commercial bivalves Ruditapes decussatus and Mytilus galloprovincialis by trace metals; Implication for the implemen
Bhattacharyya R / 2003 / High arsenic groundwater: mobilization, metabolism and mitigation-an overview in the Bengal Delta Plain / Mol. Cell Biochem 253 : 347 ~ 355
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