Cite this paper:
CHEN Shihua, CHEN Xin, DOU Weihong, WANG Liang, YIN Haibo, GUO Shanli. GST(phi) gene from Macrophyte Lemna minor is involved in cadmium exposure responses[J]. Journal of Oceanology and Limnology, 2016, 34(2): 342-353

GST(phi) gene from Macrophyte Lemna minor is involved in cadmium exposure responses

CHEN Shihua, CHEN Xin, DOU Weihong, WANG Liang, YIN Haibo, GUO Shanli
Key Laboratory of Plant Molecular & Developmental Biology, College of Life Sciences, Yantai University, Yantai 264005, China
Reactive oxygen species(ROS) scavengers, including ascorbate peroxidase, superoxide dismutase, catalase and peroxidase, are the most commonly used biomarkers in assessing an organisms' response to many biotic and abiotic stresses. In this study, we cloned an 866 bp GST(phi) gene in Lemna minor and investigated its characteristics, expression and enzymatic activities under 75μmol/L cadmium concentrations in comparison with other ROS scavengers. GST(phi) gene expression patterns were similar to those of other scavengers of ROS. This suggests that GST(phi) might be involved in responding to heavy metal(cadmium) stress and that its expression level could be used as a bio-indicator in monitoring cadmium pollution.
Key words:    Lemna minor|GST(phi) gene|heavy metal|gene expression|bio-indicator   
Received: 2014-12-12   Revised: 2015-02-16
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