中国水土保持科学2012，Vol.10Issue(6)：77-81,5.
不同水分条件下沙漠豆生理指标的变化
Physiological changes of Swainsona formosa under different water conditions
摘要
Abstract
Under different water conditions some physiological indexes of Swainsona formosa, such as Malondialdehyde (MDA) ,soluble sugar, soluble protein, proline, protective enzymes ( SOD,POD and CAT) , were determined by using the conventional method of plant physiology in this paper. The results are as follows: 1 ) with increased drought stress the proline content increased gradually, soluble protein content decreased and the increased, there was a mutual compensation relationship between the two indexes. The tendency of content of soluble sugar increasing initially and then decreasing showed the regulation function of osmotic adjustment material to the drought stress. 2 ) The activities of defense enzymes changed differently under various water conditions, the CAT activities raised with the drought stress. The SOD activity increased at moderate drought stress and declined at severe drought stress. In contrast to SOD activity, but POD activity changes were opposite to SOD. The cooperative synergistic effect among protective enzymes maintained the integrity of cell membrane of leaves. 3 ) The MDA content increased with drought stress, which means that damage to. Swainsona formosa due to drought stress can be reduced by increasing soluble content, strengthening activity of protective enzymes and antioxygenic ability.关键词
沙漠豆/干旱胁迫/生理指标Key words
Swainsona formosa/ drought stress/ physiological indexes引用本文复制引用
卜楠,俞丽蓉,马万里,王铁娟,周鸿升,毕建瓴,孙克..不同水分条件下沙漠豆生理指标的变化[J].中国水土保持科学,2012,10(6):77-81,5.基金项目
国家林业局"948"项目"生态经济型观赏植物沙漠豆种质资源及繁殖栽培技术引进"(2009-4-14) （2009-4-14）
