干旱区生态环境知识资源中心(Arid): Adaptive Responses of Aerva javanica to Severe Aridity in the Egyptian Deserts

Arid

DOI	10.21608/ejbo.2018.2557.1144
	Adaptive Responses of Aerva javanica to Severe Aridity in the Egyptian Deserts
	Salama, Fawzy; Abd El-Ghani, Monier; El-Tayeh, Noha; Amro, Ahmed; El-Naggar, Sara
通讯作者	Salama, F
来源期刊	EGYPTIAN JOURNAL OF BOTANY
ISSN	0375-9237
出版年	2018
卷号	58 期号:2 页码:171-184
英文摘要	TWELVE stands of Aerva javanica shrubs were visited during the winter and summer seasons of 2015 in two tributaries of WadiQena (Wadi El-Atrash and Wadi El-Ghuza) in the Egyptian Eastern Desert. Soil analysis showed low contents of soil moisture (SMC) and organic matter and slight alkalinity. Chlorophyll contents (Chl. a & b) and their ratio increased significantly during summer season, while their stability index increased during winter. The contents of Ca and K were high during summer, while PO4 and Na were higher during winter. Soluble sugars and soluble proteins increased during summer while total free amino acids were higher during winter. It can be concluded that there are close relationships between the high K, Ca and Cl contents and the hot-dry conditions prevailed in the summer season, and the accumulation of soluble sugars (SS) and soluble proteins (SP) on the relatively humid-cold season. Statistical correlations showed important positive relations between soil Na and plant water content (PWC), chlorophyll parameters, SS and SP. Fortunately, there was negative relation between soil PO4 and the contents of Na and Cl in the shoots. Spatial variations were the most important factor that controls A. javanica PWC, Na, K, Ca, Cl, PO4, Chl. a and b, SS and SP. While, Mg, chlorophyll a stability index (CSI a), CSI b and total amino acids (TFAA) were affected by the variation in both spatial and temporal gradients.
英文关键词	Drought resistance Plant-environment relations Chlorophyll Carbon and Nitrogen metabolism
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000449414500003
WOS关键词	WATER RELATIONS ; DROUGHT ; STRESS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333050
作者单位	[Salama, Fawzy; Amro, Ahmed] Assiut Univ, Dept Bot & Microbiol, Fac Sci, Assiut, Egypt; [Abd El-Ghani, Monier] Cairo Univ, Bot Dept, Fac Sci, Cairo, Egypt; [El-Tayeh, Noha; El-Naggar, Sara] South Valley Univ, Bot Dept, Fac Sci, Qena, Egypt
推荐引用方式 GB/T 7714	Salama, Fawzy,Abd El-Ghani, Monier,El-Tayeh, Noha,et al. Adaptive Responses of Aerva javanica to Severe Aridity in the Egyptian Deserts[J],2018,58(2):171-184.
APA	Salama, Fawzy,Abd El-Ghani, Monier,El-Tayeh, Noha,Amro, Ahmed,&El-Naggar, Sara.(2018).Adaptive Responses of Aerva javanica to Severe Aridity in the Egyptian Deserts.EGYPTIAN JOURNAL OF BOTANY,58(2),171-184.
MLA	Salama, Fawzy,et al."Adaptive Responses of Aerva javanica to Severe Aridity in the Egyptian Deserts".EGYPTIAN JOURNAL OF BOTANY 58.2(2018):171-184.