Effect of Soil Hg Stress on Ezpression of Heat Shock Protein Gene in Springtail Folsomia Candida
Transcriptional responses of hsp70 gene of the Folsomia candida were detected by relative real-time PCR assay when the springtail was exposed to a vegetable soil with different Hg concentrations or different exposure time. Results showed that the hsp70 gene expression level was significantly up-regulated when soil Hg was ≥0.25 mg·kg-1. The responses of this gene expression were strongly induced after 48 hours exposure under 1 mg·kg-1 of soil Hg, which was probably due to the fast and sensitive response of the gene transcription to the Hg stress. Thus, the results suggested that the gene could be used as a biomarker to monitor the Hg pollution in soil and help early and fast environmental diagnostics or ecological risk assessment of Hg contaminated soils.
Folsomia candida Hsp70 gene Soil Hg Risk assessment
Yurong Liu Yuanming Zheng Yu Da Jizheng He
State Key Laboratory of Urban and Regional Ecology,Research Centre for Eco- Environmental Sciences,C State Key Laboratory of Urban and Regional Ecology,Research Centre for Eco-Environmental Sciences,Ch
国际会议
杭州
英文
55-57
2009-10-10（万方平台首次上网日期，不代表论文的发表时间）