Journal
AQUATIC TOXICOLOGY
Volume 80, Issue 3, Pages 261-266Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aquatox.2006.09.003
Keywords
microcystin; glutathione S-transferases; real time PCR; common carp; Cyprinus carpio
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The glutathione S-transferases play important roles in the detoxification of microcystin. In this experiment, nine glutathione S-transferase genes including cytosolic GSTs (rho, mu, theta, alpha and pi), mitochondrial GST (kappa) and microsomal GSTs (mGST1, mGST2 and mGST3) were cloned from common carp Cyprinus carpio. The mRNA abundance of each carp GST isoform in liver was analyzed by real time PCR. The relative changes after stimulation with microcystin LR were also analyzed: increased levels of transcription of GST alpha, rho and mGST3 isoforms were detected at 6 h post stimulation; the transcription of mu, theta and mGST2 isoforms were relatively stable; and all the GST isoforms except GST kappa and rho recovered to original levels compared with controls at 72 h. It is suggested that MC-LR showed different effects on the transcription of nine carp GST isoforms. (c) 2006 Elsevier B.V. All rights reserved.
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