I came from Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China. My current working is toward the Ph.D. degree in genetics. My work is to study the mechanism of heavy metal enrichment in duckweeds. We hope to improve water quality by using duckweed with strong enrichment capability to absorb heavy metals. In order to achieve this goal, I have cloned some genes of S. polyrhiza which are associated with heavy metal enrichment, as revealed by bioinformatics analysis, including SpNramps (NATURAL RESISTANCE-ASSOCIATED MACROPHAGE PROTEIN), SpGSH (GLUTAMATE-CYSTEINE LIGASE) and SpPCS (PHYTOCHELATIN SYNTHASE).