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《Plant Protection》 2014-01
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Detoxication mechanism of Rehmannia glutinosa to paraquat

Xu Feng;Yang Deliang;Yang Jie;Liu Xiu;Zhang Chuang;Wu Minggen;Agricultural College of Yanbian University;  
Rehmannia glutinosa showed tolerance to paraquat.The phytotoxicity of R.glutinosa was grade 0and grade 2 with paraquat at 300 g/hm2 or 600 g/hm2,respectively.The results showed that the DPPH free radical scavenging activity of ethanol extract from R.glutinosa root tubers and leaves increased with the extractive concentration adding;the DPPH scavenging effect in the leaves was better than that in the root tubers.The concentrations of R.glutinosa root tubers and leaves extracted with ethanol were 20.0g/L and 12.2 g/L,respectively, when the DPPH free radical scavenging activity was 50%.In general,the detoxication of R.glutinosato paraquat was caused by the antioxidant substance which could remove paraquat reactive oxygen toxicity.
【Fund】: 国家自然科学基金(31160370)
【CateGory Index】: S567.239
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