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《China Environmental Science》 2010-S1
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Relationships between metagenome of plankton community and heavy metals in Lake Donghu,Wuhan

YAN Qing-yun,YU Yu-he*,FENG Wei-song(Key Laboratory of Biodiversity and Conservation of Aquatic Organisms,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China)  
Metagenome of plankton community in Lake Donghu was investigated by PCR-DGGE fingerprinting of the 16S rRNA and 18S rRNA genes,respectively.Then the relationships between the DGGE fingerprints of the plankton community and heavy metals were explored.A total of 82 DGGE bands were detected,of which 82.9% were polymorphic bands and 31.7% were unique bands.The bands detected at station I~V were 36,34,44,50 and 56,respectively.The five investigated stations were classified into two groups using UPGMA clustering based on the DGGE fingerprints of plankton community.Station I and II were found to initially group together into one cluster,which was later joined by station Ⅲ.Station IV and V made up the second group.These group divisions were consistent with the UPGMA clustering based on the concentrations of the heavy metals(Pb,Cr,Hg,Cd,As,Cu).The correlation analysis indicated that the operational taxonomic units(OTUs,one band-one OTU in principle) were correlated with the heavy metals of Cd(R =-0.942,P 0.05) and Cr(R =-0.928,P 0.05).
【Fund】: 国家自然科学基金资助项目(30770298);; 淡水生态与生物技术国家重点实验室开放课题(2008FB016)
【CateGory Index】: X524
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