杭州师范大学学报（自然科学版）2017，Vol.16Issue(3)：255-259,5.DOI:10.3969/j.issn.1674-232X.2017.03.006
NaCl胁迫下西藏野生大麦苗期耐盐生理生化机制分析
On the Salt-tolerance Physiological and Biochemical Mechanism ofTibetan Wild Barley Seedlings under NaCl Stress
摘要
Abstract
In order to explore the salt-tolerance mechanism of Tibetan wild barley X41 seedlings,the growth,physiological and biochemical indexes,Na+ and K+ content in different tissues were investigated under NaCl stress with hydroponic culture using three barley varieties,wild barley X41,cultivated barley CM72 and Gairdner.The results showed that the fresh weight,dry weight per plant and SPAD value of the three genotypes decreased under the salt stress,and the content of MDA and the activity of POD increased.The content of Na+ increased in the shoots,while the content of K+ decreased.The content of Na+ and K+ also decreased in roots.The reduction of fresh and dry weight of each plant and the SPAD value as well as the increasing amplitude of the content of MDA and POD were the minimum in the Tibetan wild barley X41,and the content of shoot Na+ was lower,these results suggested that X41 was more tolerant to salt stress.关键词
西藏野生大麦/NaCl胁迫/耐盐/生理生化指标Key words
barley/NaCl stress/salt-tolerance/physiological and biochemical indexes分类
农业科技引用本文复制引用
崔君,金越,张晓勤,王嘉慧,路雪丽,吴玉环,薛大伟..NaCl胁迫下西藏野生大麦苗期耐盐生理生化机制分析[J].杭州师范大学学报（自然科学版）,2017,16(3):255-259,5.基金项目
国家自然科学基金项目(31401316) （31401316）
浙江省自然科学基金项目(LY14C130007) （LY14C130007）
杭州市科委项目(20140432B03). （20140432B03）
