干旱区生态环境知识资源中心(Arid): Influence of Drought Stress and Rehydration on Moisture and Photosynthetic Physiological Changes in Three Epilithic Moss Species in Areas of Karst Rocky Desertification

Arid

DOI	10.1155/2021/4944012
	Influence of Drought Stress and Rehydration on Moisture and Photosynthetic Physiological Changes in Three Epilithic Moss Species in Areas of Karst Rocky Desertification
	Cong, Chunlei; Liu, Tianlei; Zhang, Xianqiang
通讯作者	Cong, CL (corresponding author)，Anshun Univ, Anshun 561000, Peoples R China. ; Zhang, XQ (corresponding author)，Guizhou Police Coll, Guiyang 550005, Peoples R China.
来源期刊	JOURNAL OF CHEMISTRY
ISSN	2090-9063
EISSN	2090-9071
出版年	2021
卷号	2021
英文摘要	The drought resistance mechanism of typical mosses in the karst area was studied, and the water and photosynthetic physiological adaptation of mosses to karst environmental change was analyzed in this paper, which provided the basis for the restoration and control of karst rocky desertification ecological environment. Three superior plants in the rocky desertification area of Guizhou province were selected; they are, respectively, Erythrodontium julaceum (Schwaegr.) Par., Barbula unguiculata Hedw., and Bryum argenteum Hedw. Results show that the three kinds of plant rock mosses of leaf water potential (psi s), free water content (Va), total water content, and relative water content (RWC) decreased; bound water (V-s), water saturation deficit (WSD), and V-s/V-a ratio increased; transpiration rate (Tr) fell slightly, under drought stress. The physiological indexes of water have different degrees of recovery after rehydration. The total chlorophyll content shows a trend of first increasing followed by falling and then rising. RWC was negatively related to qN and positively related to F-v/F-m, yield, ETR, and qP. After rewetting, the fluorescence parameters are returned to average level under mild-to-moderate stress. At the same time, it is hard to get back to the control level under severe pressure. The water use efficiency (WUE) decreased with stress and recovered to different degrees after rehydration.
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000739418600004
WOS关键词	CHLOROPHYLL-FLUORESCENCE ; WATER-CONTENT ; DESICCATION ; BRYOPHYTES ; TOLERANCE ; RECOVERY
WOS类目	Chemistry, Multidisciplinary
WOS研究方向	Chemistry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375685
作者单位	[Cong, Chunlei; Liu, Tianlei] Anshun Univ, Anshun 561000, Peoples R China; [Zhang, Xianqiang] Guizhou Police Coll, Guiyang 550005, Peoples R China
推荐引用方式 GB/T 7714	Cong, Chunlei,Liu, Tianlei,Zhang, Xianqiang. Influence of Drought Stress and Rehydration on Moisture and Photosynthetic Physiological Changes in Three Epilithic Moss Species in Areas of Karst Rocky Desertification[J],2021,2021.
APA	Cong, Chunlei,Liu, Tianlei,&Zhang, Xianqiang.(2021).Influence of Drought Stress and Rehydration on Moisture and Photosynthetic Physiological Changes in Three Epilithic Moss Species in Areas of Karst Rocky Desertification.JOURNAL OF CHEMISTRY,2021.
MLA	Cong, Chunlei,et al."Influence of Drought Stress and Rehydration on Moisture and Photosynthetic Physiological Changes in Three Epilithic Moss Species in Areas of Karst Rocky Desertification".JOURNAL OF CHEMISTRY 2021(2021).