青藏高原几种高寒植物的抗寒生理特性
Physiological Characteristics in Cold Resistance of Several Alpine Plants in Qinghai-Tibet Plateau
查看参考文献24篇
|
文摘
|
研究了青藏高原高寒地区3种多年生植物在生长过程中植物叶组织的可溶性糖、脯氨酸和丙二醛（MDA）含量、超氧化物歧化酶（SOD）和过氧化物酶（POD）活性的变化及其生理特性。结果表明；矮嵩草（Kobresia humilis）、垂穗披碱草（Elymus nutans）和黑褐苔草（Carex atro-fusca）叶中的可溶性糖含量随着生长期的进程而增加；脯氨酸含量的变化因植物种类的不同而表现各异，其中在各生长期．垂穗披碱草的脯氨酸含量均高于矮嵩草和黑褐苔草，并在草盛中期表现出明显的差异；3种高寒植物叶片中的丙二醛（MDA）含量随着生长季和气温的变化而呈现不断增加的趋势；3种植物中的超氧化物歧化酶（SOD）和过氧化物酶（POD）活性表现出随生长期和气温变化而改变的趋势，但黑褐苔草的2种膜保护酶活性最高，垂穗披碱草的次之．矮嵩草最低。可见，在不同生长季，这3种高寒植物的抗寒生理反应或低温适应方式可能是多途径的．其中在抗寒物质代谢、膜脂过氧化能力和抗氧化酶系统等方面，有生理反应的共同规律和各自特有的生理抗寒特性．其适应性与抗逆性有所不同，这种差异和生理特性可能与高寒植物的遗传特性和极端高寒低温环境胁迫有关。 |
|
其他语种文摘
|
The soluble sugar and proline contents,and the MDA ,SOD,POD activities in the leaves of several perennial alpine plants ,and the physiological characteristics of the plants during their growth were studied. The results showed that Kobresia humilis,Elymus nutans and Carex atro-fusca presented an increased soluble sugar content as they grew;their proline contents differed depending on the kinds of the plants and the proline content of Elymus nutans was highter than those of Kobresia humilis and Kobresia humilis at various growth stages, which appeared remarkable at the middle stage of quick and vigorous growth;the three plants presented a gradually increasing tendency in MDA content with the seasons and air temperature for their growth;the three plants presented a varying tendency in SOD and POD activity with the sea- sons and temperature for their growth,Carex atro-fusca appearing to have the highest SOD and POD activities ,Elymus nutans taking the second position in the activities of the two enzyme and Kobresia humilis appearing to have the lowest SOD and POD activities. It is obvious that in different growing seasons, the three plants probably have many ways in physiological reactions of their cold resistances or their adaptation to low temperature ,sharing common physiological reaction patterns and possessing their own physiological cold-resisting characteristics in the metabolisms of cold-resisting substances, the capacities of membrane lipid peroxidation and the system of anti-oxidative enzymes which result in their differences in adaptability and resistance ;the differences probably relate to their genetic characteristics and extremely high and cold environments of alpine plants. |
|
来源
|
西北植物学报
,2005,25(12):2502-2509 【核心库】
|
|
关键词
|
青藏高原
;
高寒植物
;
抗寒性
;
生理特性
|
|
地址
|
中国科学院西北高原生物研究所, 青海, 西宁, 810008
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-4025 |
|
学科
|
植物学 |
|
基金
|
国家自然科学基金资助项目
;
中国科学院西北高原生物研究所知识创新工程领域前沿项目
;
国家科技攻关计划项目
|
|
文献收藏号
|
CSCD:2193932
|
参考文献 共
24
共2页
|
|
1.
陈少裕. Lipid peroxidation and stress in plant[J].
植物学通报,1989,6(4):211-217
|
CSCD被引
182
次
|
|
|
|
|
2.
OLIEN C R. Freeze-induced changes in soluble carbohydrate of rye[J].
Crop Science,1985,25:288-290
|
CSCD被引
4
次
|
|
|
|
|
3.
周瑞莲. 高寒山区草本植物的保护酶系统及其在低温生长中的作用.
西北植物学报,2002,22(3):566-573
|
CSCD被引
22
次
|
|
|
|
|
4.
周党卫. 不同海拔珠芽蓼抗氧化系统的研究.
应用与环境生物学报,2003,9(5):489-492
|
CSCD被引
31
次
|
|
|
|
|
5.
赵福庚. Plant resistence physioecology[M].
Plant resistence physioecology,2004:1-216
|
CSCD被引
1
次
|
|
|
|
|
6.
中国科学院西北高原生物研究所. 中国科学院西北高原生物研究所.
The proceedings of the intermational symposium of alpine meadow ecosystem,1989:1-179
|
CSCD被引
1
次
|
|
|
|
|
7.
周兴民. The Kobresia meadow in China[M].
The Kobresia meadow in China,2001:1-125
|
CSCD被引
1
次
|
|
|
|
|
8.
周兴民. The major vegetation and its geographicaldistuibution principles in Haibei Rearch Station of Alpine Meadow Ecosystem[A].
The ecosystem in alpine meadow,1982:9-18
|
CSCD被引
1
次
|
|
|
|
|
9.
杨福囤. A general view of the natural geography in the region of the research station of alpine meadow ecosystem[J].
高寒草甸生态系统,1982:1-8
|
CSCD被引
25
次
|
|
|
|
|
10.
师生波. Analysis of the solar UV-B radiation and plant UV-B absorbing compounds in different regions[J].
生态学报,1999,23(6):529-535
|
CSCD被引
1
次
|
|
|
|
|
11.
章骏德. 植物生理实验法[M].
植物生理实验法,1982:179-182
|
CSCD被引
2
次
|
|
|
|
|
12.
刘祖祺. 中国农业出版社.
Plant resistence physiology,1994:369-382
|
CSCD被引
1
次
|
|
|
|
|
13.
BRADFORD M M. A rapid and sensitive method for the quantification of microgram quantities of protein utilizing the principle of protein-dye binding[J].
Analytical Biochemistry,1976,72(5):248-254
|
CSCD被引
7667
次
|
|
|
|
|
14.
赵世杰. Improvement of the malondialdehyde measurement in plant tissue[J].
植物生理学通讯,1994,30(3):207-210
|
CSCD被引
695
次
|
|
|
|
|
15.
滕中华. 青藏高原三种高寒植物的质膜透性变化与抗寒性的关系.
中国草地,2001,23(4):37-47
|
CSCD被引
12
次
|
|
|
|
|
16.
韩发. 青藏高原不同海拔矮嵩草抗逆性的比较研究.
生态学报,1998,18(6):654-659
|
CSCD被引
38
次
|
|
|
|
|
17.
张树源. A comparison of basic cold-tolerant physiology between three cushion plants[J].
高原生物学集刊,1987(6):165-169
|
CSCD被引
12
次
|
|
|
|
|
18.
HENDERSHOT K L. Nitrogen pools in roots of Medicago sativa L.
Journal of Plant Physiology,1993,141(2):129-135
|
CSCD被引
7
次
|
|
|
|
|
19.
RAJASHEKEVAR C. Frost damage in hardy herbaceous species[A].
Low temperature stress in crop plants-the role of membrane,1979:255-274
|
CSCD被引
3
次
|
|
|
|
|
20.
ANCHORODOGUY T J. Modes of interaction of cryopretectants with membrane phospholids during freezing[J].
Cryobiology,1987,24:324-331
|
CSCD被引
13
次
|
|
|
|
|
了解气象卫星更多信息，请访问