安徽农业大学学报2016，Vol.43Issue(3)：405-409,5.DOI:10.13610/j.cnki.1672-352x.20160512.019
茶氨酸诱导烟草幼苗抵御干旱胁迫的研究
The protective role of theanine in drought tolerance of tobacco seedlings
摘要
Abstract
To study the role of theanine in protecting tobacco against drought stress,non-enzymic antioxidants and antioxidases in tobacco seedlings were investigated.The results showed that 0.25 mmol/L theanine could effectively improve plant growth and the survival rate of tobacco seedlings under drought stress.Meanwhile,analyses of physiological-biochemical indices indicated that theanine could increase the content of glutathione (GSH),adjust the activities of antioxidant enzymes,such as superoxide dismutase (SOD),acerbate peroxidase (APX),peroxidase (POD) and catalase (CAT),but it lowered the relative conductivity content,the proline content,the hydrogen peroxide (H2O2) level as well as the content of malondialdehyde (MDA).In conclusion,theanine is beneficial to relieving drought stress on tobacco seedlings through stimulating non-enzymic antioxidants and antioxidases in plants.关键词
茶氨酸/干旱胁迫/烟草Key words
theanine/drought stress/tobacco分类
农业科技引用本文复制引用
刘炎红,单丹丹,刘松,尤本武,郭家明,陈学平..茶氨酸诱导烟草幼苗抵御干旱胁迫的研究[J].安徽农业大学学报,2016,43(3):405-409,5.基金项目
安徽省烟草公司“提升特色烟风格、增强抗逆性的高效绿色生长调节物质的研制与应用”项目(0920140421003)资助. （0920140421003）
