气候变化领域集成服务门户(CCPortal): Physiological responses of Agriophyllum squarrosum and Setaria viridis to drought and re-watering

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DOI	10.1038/s41598-021-98246-8
	Physiological responses of Agriophyllum squarrosum and Setaria viridis to drought and re-watering
	Chen, Juanli; Zhao, Xueyong; Li, Yuqiang; Luo, Yongqing; Zhang, Yaqiu; Liu, Mei; Li, Yan
通讯作者	Chen, JL (通讯作者)，Mianyang Normal Univ, Ecol Secur & Protect Key Lab Sichuan Prov, Mianyang 621000, Sichuan, Peoples R China. ; Chen, JL (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	2045-2322
卷号	11 期号:1
英文摘要	Drought resistance of psammophyte determines survival and growth, but their responses to drought are not well understood. We conducted a pot experiment to study how physiological characteristics respond to drought and rehydration. We found that watering to 60-65% of field capacity (the control) provided more water than was required by Agriophyllum squarrosum and its leaves became yellow and slightly wilted. The total chlorophyll content and Fm (maximum fluorescence after dark adaptation) in control were lower than in the drought treatment, and both decreased after rehydration. With increasing drought duration and intensity, the relative water content (RWC), chlorophyll content, Fm, and the quantum efficiency of photosystem II (Fv/Fm) of Setaria viridis decreased, but malondialdehyde and membrane permeability increased. During the late drought, the activities of three antioxidant enzymes in A. squarrosum increased to prevent membrane lipid peroxidation; for S. viridis, only peroxidase and superoxide dismutase activities increased. After rehydration, RWC of both species increased, but Fv/Fm of A. squarrosum and Fm of S. viridis did not recover under severe drought. Our research illustrated that A. squarrosum is better adapted to arid environment than S. viridis, but the high soil moisture content is not conducive to normal growth of A. squarrosum.
关键词	CHLOROPHYLL FLUORESCENCE PARAMETERS STOMATAL CONDUCTANCE STRESS PHOTOSYNTHESIS SOIL SEEDLINGS FOLIAGE GROWTH YIELD SALT
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000700289800035
来源期刊	SCIENTIFIC REPORTS
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/253852
作者单位	[Chen, Juanli; Liu, Mei; Li, Yan] Mianyang Normal Univ, Ecol Secur & Protect Key Lab Sichuan Prov, Mianyang 621000, Sichuan, Peoples R China; [Chen, Juanli; Zhao, Xueyong; Li, Yuqiang; Luo, Yongqing] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China; [Zhang, Yaqiu] Hanzhong Agr Technol Extens Ctr, Hanzhong 723000, Peoples R China
推荐引用方式 GB/T 7714	Chen, Juanli,Zhao, Xueyong,Li, Yuqiang,et al. Physiological responses of Agriophyllum squarrosum and Setaria viridis to drought and re-watering[J]. 中国科学院西北生态环境资源研究院,2021,11(1).
APA	Chen, Juanli.,Zhao, Xueyong.,Li, Yuqiang.,Luo, Yongqing.,Zhang, Yaqiu.,...&Li, Yan.(2021).Physiological responses of Agriophyllum squarrosum and Setaria viridis to drought and re-watering.SCIENTIFIC REPORTS,11(1).
MLA	Chen, Juanli,et al."Physiological responses of Agriophyllum squarrosum and Setaria viridis to drought and re-watering".SCIENTIFIC REPORTS 11.1(2021).