Abstract:Heavy Metal toxicities are assessed with Photobacteriumphosphoreum and the dose-response curvefor ZnSO4·7H2O, K2Cr2O7, HgCl2, CdCl2·2.5H2O and Pb(NO3)2 can be described by Weibull model while for CuSO4·5H2O can be described by Logistic model in which the values of Log2EC50 were easily predicted. The P.phosphoreum was most sensitive to Hg, followed by Zn, Pb, Cd, Cu, andthe least sensitive to Cr. The EC50 of the P. phosphoreum fell within the scope of the species sensitivity distribution model predicted with other marine organisms. Compare to fish, daphnia, decapods and bivalves, P. phosphoreum is at a low level of sensitivity to Cu2+, but at higher levels of sensitivities to Cd2+, Pb2+, Hg2+, Zn2+ and Cr6+. Most of the marine species have the same order of the response to the six different heavy metals, indicating that toxicity testusing P. phosphoreum is very important for predicting heavy metal effects in marine ecosystem.
LI Zhen,MIAO Jing-jing,PAN Lu-qing. Toxicity effectofheavy metals on Photobacteriumphosphoreum and the species sensitivity comparison with other marine organisms[J]. Marine Environmental Science, 2015, 34(2): 176-183.
KELLY C J, TUMSAROJ N, LAJOIE C A.Assessing wastewater metal toxicity with bacterial bioluminescence in a bench-scale wastewater treatment system[J].Water Research, 2004, 38(2):423-431.
[3]
张红霞.重金属离子对日本(虫寻)毒理学效应的研究[D].青岛:中国海洋大学, 2006.
[4]
贾广宁.重金属污染的危害与防治[J].有色矿冶, 2004, 20(1):39-42.
[5]
BULICH A A, ISENBERG D L.Use of the luminescent bacterial system for the rapid assessment of aquatic toxicity[J].ISA Transactions, 1981, 20(1):29-33.
SCHULER L J, RAND G M.Aquatic risk assessment of herbicides in freshwater ecosystems of south Florida[J].Archives of Environmental Contamination and Toxicology, 2008, 54(4):571-583.
ALONSO A, SANCHEZ P, MARTÍNEZ J L.Stenotrophomonas maltophilia D457R contains a cluster of genes from gram-positive bacteria involved in antibiotic and heavy metal resistance[J].Antimicrobial Agents and Chemotherapy, 2000, 44(7):1778-1782.
EISLER R, HENNEKEY R J.Acute toxicities of Cd2+, Cr6+, Hg2+, Ni2+ and Zn2+ to estuarine macrofauna[J].Archives of Environmental Contamination and Toxicology, 1977, 6(1):315-323.
THURSTON R V, GLIFOIL T A, MEYN E L, et al.Comparative toxicity of ten organic chemicals to ten common aquatic species[J].Water Research, 1985, 19(9):1145-1155.