干旱区生态环境知识资源中心(Arid): 生长素和氯化钙对盐胁迫下沙冬青幼苗的缓解作用

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	生长素和氯化钙对盐胁迫下沙冬青幼苗的缓解作用
其他题名	Mitigative Effect of IBA and CaCl_2 on Under Salt Stress Ammopiptanthus mongolicus Seedlings
	李婧男; 刘强; 李升
来源期刊	植物研究
ISSN	1673-5102
出版年	2010
卷号	30 期号:1 页码:27-31
中文摘要	沙冬青(Ammopiptanthus mongolicus)是亚洲中部荒漠地区唯一的常绿阔叶灌木,本课题组已将其在天津引种栽培成功.为进一步了解生长素和氯化钙对沙冬青在盐胁迫下的缓解作用,用水培方法培养沙冬青幼苗,测定其在1.3%NaCl胁迫下经不同浓度的生长素和氯化钙处理后抗氧化酶活性、PSII光化学效率以及其它与植物抗性有关的生理指标的变化.结果表明,一定浓度的IBA和CaCl_2:处理可以促进盐胁迫下沙冬青幼苗的生长、提高叶绿素的含量、增强保护酶的活性、降低丙二醛含量,缓解了盐胁迫.但是当IBA、CaCl_2浓度分别达到5和20mmol·L~(-1)时则对沙冬青幼苗产生伤害.综合各项生理指标说明,CaCl_2对沙冬青盐胁迫的缓减作用要优于IBA.
英文摘要	Ammopiptanthus mongolicus,an endangered evergreen leguminous shrub,which is endemic to the semi-arid desert region of central Asia was successfully introduced in Tianjin by our team.In orderto understand the mitigative effect of IBA and CaCl_2 of A.mongolicus seedlings under salt stress,the seedlings were treated with 1.3%NaCl and different concentrations of IBA and CaCl_2 under water culture.Antioxidant enzyme activities,photochemical efficiency of PSII and other related physiological index are measured and analyzed.The results showed that several treatments improved the growth of A.mongolicus seedlings;they were also helpful to increase the content of chlorophyll.the activity of antioxidant enzyme.It wag also found that the application of IBA and CaCl_2 could decrease the accumulation of malondialdehyde(MDA).Therefore,the injuries induced by the salt stress were mitigated and salt resistance of A.mongolicus was raised by the low concentration of IBA and CaCl_2.When the concentration of IBA and CaCl_2 reached 5 and 20 mmol·L~(-1),respectively,the seedlings growth were inhibited.The application effect of CaCl_2 is better than IBA.
中文关键词	盐胁迫 ; 沙冬青幼苗 ; 生长素 ; 氯化钙
英文关键词	salt stress Ammopiptanthus mongolicus IBA CaCl_2
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3837099
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225908
作者单位	天津师范大学化学与生命科学学院, 天津 300387, 中国
推荐引用方式 GB/T 7714	李婧男,刘强,李升. 生长素和氯化钙对盐胁迫下沙冬青幼苗的缓解作用[J],2010,30(1):27-31.
APA	李婧男,刘强,&李升.(2010).生长素和氯化钙对盐胁迫下沙冬青幼苗的缓解作用.植物研究,30(1),27-31.
MLA	李婧男,et al."生长素和氯化钙对盐胁迫下沙冬青幼苗的缓解作用".植物研究 30.1(2010):27-31.