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DOI	10.1007/s10661-017-6257-z
	Physiological response to salinity stress and tolerance mechanics of Populus euphratica
	Zhao, Chun Yan; Si, Jian Hua; Feng, Qi; Deo, Ravinesh C.; Yu, Teng Fei; Li, Pei Du
发表日期	2017
ISSN	0167-6369
EISSN	1573-2959
卷号	189 期号:11
英文摘要	The salinity stress inhibits the growth of Populus euphratica (P. euphratica), and the extent of inhibition tends to increase with a rise of salt concentration while the net photosynthesis rate, stomatal conductance, transpiration rate, and internal CO2 concentration are seen to decline with increasing salt concentration. Compared with the control group, the percentage decline is found to be about 48.50, 15.72, 42.09, and 48.33%, respectively. Although all chlorophyll fluorescence of P. euphratica exhibits a typical O-J-I-P curve in differently concentrated salt solutions, salinity stress shows a significant influence on the value of J and I step (P < 0.05). However, salinity stress was seen to induce a decrease in variable fluorescence (Fv)/maximal fluorescence value by 2.32, 8.78, 12.80, 12.93, 16.46, and 19.63% treated by 50-, 100-, 150-, 200-, 250-, and 300-mM salt solution compared with the control group, respectively. Salinity stress appeared also to induce a decrease in Fv/minimal fluorescence values by a magnitude of 5.22, 16.02, 18.06, 22.95, 26.34, and 32.19% in P. euphratica treated by 50-, 100-, 150-, 200-, 250-, and 300-mM salt solution relative to the control group, respectively. An increase in the content of malondialdehyde amounted to 4.12, 25.59, 34.60, 68.11, 70.72, and 67.68% in P. euphratica treated by 50-, 100-, 150-, 200-, 250-, and 300-mM salt solution compared to the control group, respectively. In terms of the content of proline, the salinity stress induced an increase by 4.94, 29.49, 53.20, 77.65, 82.46, and 90.68% in P. euphratica treated by 50-, 100-, 150-, 200-, 250-, and 300-mM salt solution, respectively.
关键词	Salinity stress Photosynthetic Chlorophyll fluorescence Malondialdehyde Proline
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111914
作者单位	Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Chun Yan,Si, Jian Hua,Feng, Qi,et al. Physiological response to salinity stress and tolerance mechanics of Populus euphratica[J]. 中国科学院西北生态环境资源研究院,2017,189(11).
APA	Zhao, Chun Yan,Si, Jian Hua,Feng, Qi,Deo, Ravinesh C.,Yu, Teng Fei,&Li, Pei Du.(2017).Physiological response to salinity stress and tolerance mechanics of Populus euphratica.ENVIRONMENTAL MONITORING AND ASSESSMENT,189(11).
MLA	Zhao, Chun Yan,et al."Physiological response to salinity stress and tolerance mechanics of Populus euphratica".ENVIRONMENTAL MONITORING AND ASSESSMENT 189.11(2017).