干旱区生态环境知识资源中心(Arid): 干旱胁迫下五种荒漠灌木苗期的生理响应和抗旱评价

Arid

	干旱胁迫下五种荒漠灌木苗期的生理响应和抗旱评价
其他题名	Physiological response and evaluation of drought resistance about five desert shrubs under drought stress
	霍红 1; 张勇 2; 陈年来 1; 李彩霞 2; 高海宁 2
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2011
卷号	25 期号:1 页码:185-189
中文摘要	采用盆栽断水法模拟土壤干旱胁迫,研究了五种典型荒漠灌木-小叶锦鸡儿,荒漠锦鸡儿,沙冬青,花棒和霸王的生理适应特性.结果表明:干旱胁迫下,五种灌木苗期叶片保水能力和叶绿素a/b降低,可溶性糖,脯氨酸和MDA含量增加.各灌木SOD,POD和CAT活性变化不尽相同,但都相互协调作用维持在一个平衡态进行,且与MDA含量成正相关.多重比较发现,五种荒漠灌木中,霸王丙二醛,脯氨酸,可溶性糖含量及抗氧化酶活性最低.基于隶属函数值法评价五种灌木的抗旱性,结果为:荒漠锦鸡儿>小叶锦鸡儿>花棒>沙冬青>霸王
英文摘要	Shrub is the main component of drought desert vegetation,it plays an important role in the biological diversity, ecological services and stability of ecosystems. Characteristics of physiological adaptation of Ammopiptanthus mongolicus, Caragana microphylla, Hedysarum scoparium, Caragana roborovskyi and Zygophyllum xanthoxylum under continuing drought stress were studied. The results were as followed: Leave water-retention capacity, Chlorophyll a/b decreased and soluble sugar, proline,MDA content increased under drought stress. SOD,POD and CAT activity of each shrubs were different, there was a coordinating role between them and maintained the equilibrium state, and was positively correlated with MDA content. The contents of proline, soluble sugar,MDA and antioxidant enzymes activity of Zygophyllum xanthoxylum were in the lowest. The comprehensive evaluation results indicated that drought resistance strength is Caragana roborovskyi > Caragana microphylla > Hedysarum scoparium > Ammopiptanthus mongolicus > Zygophyllum xanthoxylum, which based on the membership function method
中文关键词	荒漠灌木 ; 干旱胁迫 ; 生理响应 ; 隶属函数法 ; 抗旱评价
英文关键词	desert shrubs drought stress physiological response membership function method
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:4123282
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226559
作者单位	1.甘肃农业大学资源与环境学院, 兰州, 甘肃 730070, 中国; 2.河西学院生命科学与工程系, 张掖, 甘肃 734000, 中国
推荐引用方式 GB/T 7714	霍红,张勇,陈年来,等. 干旱胁迫下五种荒漠灌木苗期的生理响应和抗旱评价[J]. 甘肃农业大学,2011,25(1):185-189.
APA	霍红,张勇,陈年来,李彩霞,&高海宁.(2011).干旱胁迫下五种荒漠灌木苗期的生理响应和抗旱评价.干旱区资源与环境,25(1),185-189.
MLA	霍红,et al."干旱胁迫下五种荒漠灌木苗期的生理响应和抗旱评价".干旱区资源与环境 25.1(2011):185-189.