辽宁农业科学Issue(2)：1-8,8.DOI:10.3969/j.issn.1002-1728.2017.02.001
开花期干旱胁迫对向日葵叶片活性氧代谢的影响
Effects of Drought Stress on Active Oxygen Metabolism of Sunflower Leaves at Flowering Stage
摘要
Abstract
Use drought resistant sunflower restorer line (TR5) and drought sensitive sunflower restorer line (SR2) to study on T-AOC、ASAR、HRS、H2 O2 content、MDAcontent、POD activties、CAT activties and SOD activties.To investigate the active oxygen metabolism in leaves of different drought-resistant sunflower under drought stress.The results showed that with the persistence of drought at flowering stage,ASAR in TR5 and SR2 leaves decreased compared with the control,and ASAR of TR5 leaves was significantly higher than that of SR2 during drought stress for 12 days.There was no significant difference in HRS between TR5 and SR2 before the 9th day after drought stress.HRS of the two restorers on the 12th day of drought was lower than that of the control.The quantity of H2O2 and MDA in the leaves of TR5 and SR2 increased with the drought at the flowering stage.As the drought continued H2O2 and MDA contents of two restorers have different enhanced,SR2 is more affected by drought stress than TR5.The activities of POD,CAT and SOD in TR5 and SR2 leaves were significantly different under drought stress,but the activity of POD,CAT and SOD in TR5 leaves was higher than that in SR2,and to maintain a high enzyme activity.关键词
向日葵/干旱胁迫/活性氧/抗氧化酶活性Key words
Sunflower/Drought stress/Reactive oxygen species/Anti-oxidative enzyme activities分类
农业科技引用本文复制引用
曹倩,杨恒山,依兵,刘金刚,崔良基..开花期干旱胁迫对向日葵叶片活性氧代谢的影响[J].辽宁农业科学,2017,(2):1-8,8.基金项目
辽宁省科学事业公益研究人才培养项目(GY2015-B-013) （GY2015-B-013）
国家向日葵产业技术体系建设项目(CARS-16) （CARS-16）
