植物营养与肥料学报2011，Vol.17Issue(2)：513-516,4.
甜菜碱对干旱胁迫下棉花幼苗生理特性的影响
Effect of glycine betaine on physiological characteristics of cotton seedlings under drought stress
摘要
Abstract
The effects of drought stress on cotton seedlings were evaluated in terms of the activities of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT), and the content of malondialdehyde (MDA). Similarly, the effects of foliar application of glycine betaine ( GB ) in plants subjected to drought were examined. The contents of compatible solutes, proline, and soluble sugars were measured to assess the osmotic adjustments under different treatments. The levels of SOD, POD and compatible solutes are increased under drought stress and this effect is, in general, enhanced by the treatment with GB. In the presence of exogenous GB, there is a diminution in the drought-induced increase in the content of MDA. The activity of CAT is not affected by drought stress and GB. This shows that the low concentration of GB alleviates the damage of cotton seedlings caused by drought stress.关键词
棉花/外源甜菜碱/干旱胁迫/生理特性Key words
cotton/ exogenous glycine betaine/ drought stress/ physiological characteristics分类
农业科技引用本文复制引用
高雁,李春,娄恺..甜菜碱对干旱胁迫下棉花幼苗生理特性的影响[J].植物营养与肥料学报,2011,17(2):513-516,4.基金项目
新疆农科院2007青年科技创新基金项目(2007Q08)资助. （2007Q08）
