Effect of PEG pretreatment on antioxidant enzymes activity under salt stress in root of rice seedling

Effect of PEG pretreatment on antioxidant enzymes activity under salt stress in root of rice seedling

（College of Life Science， Shenyang Normal University， Shengyang 110034， China）

Online:2016-08-25 Published:2016-08-04

Abstract

Abstract: Effects of PEG pretreatment on rice Liaoxing 1 seedling root antioxidative activities stressed by salt stress were studied. The experiment materials were dealt with 10% PEG6000 pretreatment for 3 d， next rewatered for 3 d， and then stressed for 3 d with 100 mmol·L-1 NaCl. Water content， root activity， MDA content and antioxidant enzymes （SOD， POD， CAT， APX） activity in rice seedling roots were determined. The results showed that MDA content of PEG pretreatment in roots of rice seedling was significantly lower than that of salt stressed （P<005）; However， water content， root activity and activities of antioxidant enzymes with PEG pretreatment were higher than those of salt stressed. This showed that PEG pretreatment could improve the resistance of rice seedlings and alleviate the damage of salt stress on rice seedlings.

Key words: PEG pretreatment, salt stress, rice, antioxidant enzyme activity

MEI Yingxue， WEI Wei， ZHANG Shiwan， ZHANG Yunlu， WANG Jinyuan， WANG Qian， SU Xin， MA Lianju*. Effect of PEG pretreatment on antioxidant enzymes activity under salt stress in root of rice seedling[J]. .

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Effect of PEG pretreatment on antioxidant enzymes activity under salt stress in root of rice seedling

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