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Effect of glutathion on active oxygenn scavenging system in leaves of barley seedlings under salt stress

Qin Chen, Liu Youliang

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Abstract

Under 300 mmol L -1 NaCl stress, the content of Na + increased, the contents of K +, chlorophyll(chl) and K +/Na + ratio decreased in the leaves of two barley varieties differing in salt tolerance. The positive correlation between glutathion(GSH) content and K +/Na + ratio as chlorophyll content was significant. With GSH treatment, the activities of superoxide dismutase (SOD), catalase (CAT), glutathion reductase (GR), peroxidase (POD) as well as the contents of glutathion(GSH), carotenoid(Car), α tocpherd(V E) in the leaves all increased, while the level of lipid peroxidation decreased. The results showed that the alleviation of salt injury in barley seedlings by treating with GSH could be associated with the enhancement of protective ability of the cell.

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What this paper is about

Under 300 mmol L -1 NaCl stress, the content of Na + increased, the contents of K +, chlorophyll(chl) and K +/Na + ratio decreased in the leaves of two barley varieties differing in salt tolerance. The positive correlation between glutathion(GSH) content and K +/Na + ratio as chlorophyll content was significant. With GSH treatment, the activities of superoxide dismutase (SOD), catalase (CAT), glutathion reductase (GR), peroxidase (POD) as well as the contents of glutathion(GSH), carotenoid(Car), α tocpherd(V E) in the leaves all increased, while the level of lipid peroxidation decreased. The results showed that the alleviation of salt injury in barley seedlings by treating with GSH could be associated with the enhancement of protective ability of the cell.

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Available abstract

Under 300 mmol L -1 NaCl stress, the content of Na + increased, the contents of K +, chlorophyll(chl) and K +/Na + ratio decreased in the leaves of two barley varieties differing in salt tolerance. The positive correlation between glutathion(GSH) content and K +/Na + ratio as chlorophyll content was significant. With GSH treatment, the activities of superoxide dismutase (SOD), catalase (CAT), glutathion reductase (GR), peroxidase (POD) as well as the contents of glutathion(GSH), carotenoid(Car), α tocpherd(V E) in the leaves all increased, while the level of lipid peroxidation decreased. The results showed that the alleviation of salt injury in barley seedlings by treating with GSH could be associated with the enhancement of protective ability of the cell.

Key concepts: Catalase, Glutathione, Superoxide dismutase, Chemistry, Lipid peroxidation, Point of delivery, Chlorophyll, Glutathione reductase

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Effect of glutathion on active oxygenn scavenging system in leaves of barley seedlings under salt stress — Research Paper | ScholarLens