摘要
采用不同浓度乙烯利处理烟草K326品种幼苗叶片,探索外源乙烯对其叶片中酶促和非酶促活性氧(ROS)清除系统的影响.结果表明,适当浓度的乙烯利处理可提高烟草K326品种幼苗叶片内抗坏血酸(AsA)和谷胱甘肽(GSH)含量以及超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)活性.试验证实外源乙烯能够明显增强烟草K326的抗氧化能力,为进一步研究乙烯在胁迫应答以及提高植物抗逆性过程中的作用奠定了一定的基础.
The effects of exogenous ethylene on enzymatic and non-enzymatic active oxygen scavenging systems in tobacco K 326 seedling leaves were investigated by different concentrations of ethephon.The results showed that the content of AsA and GSH and the activities of SOD,POD and CAT in tobaccoK326 seedling leaves increased with the rise of the sprayed ethephon concentrations.Exogenous ethylene significantly enhanced the antioxidant capacity of K326.Moreover,it provided an effective way to improve the resistance of plants.
出处
《河南师范大学学报（自然科学版）》
CAS
北大核心
2015年第2期132-135,共4页
Journal of Henan Normal University(Natural Science Edition)
基金
贵州大学引进人才基金[贵大人基合字(2010)023号]
贵州省烟草专卖局项目[中烟黔科(2011)02号]
