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当前位置: 首页 > 文章 > SA对高温胁迫下葡萄幼苗AsA-GSH循环的影响 核农学报 2015,29 (4) 799-804
Position: Home > Articles > Effects of Exogenous Salicylic Acid( SA) on Ascorbate Glutathione Cycle( AsA-GSH) Circulation Metabolism in Grape Seedlings Under High Temperature Stress Journal of Nuclear Agricultural Sciences 2015,29 (4) 799-804

SA对高温胁迫下葡萄幼苗AsA-GSH循环的影响

作  者：
孙军利;赵宝龙;郁松林
单  位：
新疆石河子大学农学院
关键词：
外源水杨酸;高温胁迫;ASA-GSH循环;氧化伤害;葡萄幼苗
摘  要：
本试验以二年生克瑞森无核葡萄为材料,探讨了外源SA对高温胁迫下葡萄体内ASA-GSH循环代谢的影响及其在抗高温胁迫中的作用。试验结果表明,与对照相比,外源SA可以促进高温胁迫下葡萄叶片内ASA和GSH含量的积累量,降低GSSG的含量。长时间(>240min)的高温胁迫下,外源SA可以降低脱氢抗坏血酸(DHA)的含量;能够维持较高的As A-GSH循环系统中APX、DHAR、MDHAR、GR活性。外源SA促进了高温胁迫下葡萄ASA-GSH循环的快速而有效的运转,降低了高温胁迫对葡萄植株的氧化伤害,从而缓解了高温胁迫对葡萄幼苗的伤害作用。
译  名：
Effects of Exogenous Salicylic Acid( SA) on Ascorbate Glutathione Cycle( AsA-GSH) Circulation Metabolism in Grape Seedlings Under High Temperature Stress
作  者：
SUN Junli;ZHAO Baolong;YU Songlin;Agricultural College of Shi He Zi University;
关键词：
exogenous salicylic acid(SA),high temperature stress,As A-GSH circulation metabolism,oxidative damage,grape seedlings
摘  要：
The study took the biennial Vitis vinifera L. cv. Crinson seedless grape cuttings as experimental material to study the effects of exogenous Salicylic Acid( SA) on As A-GSH circulation metabolism and the function of resistance to high temperature stress in grape seedlings. Results showed that exogenous SA promoted accumulation of As A and GSH,reduced the contents of GSSG. when the seedlings were kept under high temperature stress for a long time( > 240min),the contents of DHA was reduced; exogenous SA could maintain high enzyme activities of APX,DHAR,MDHAR and GR in As A-GSH circulation metabolism. So exogenous SA promoted the As A-GSH circulation metabolism rapidly and effectively under high temperature stress,reduce the stress of high temperature oxidation damage to grape plants,and the injury on grape seedlings was alleviated under high temperature stress.

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