干旱区生态环境知识资源中心(Arid): Physiological Responses of Two Olive Cultivars to Salt Stress

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DOI	10.3390/plants12101926
	Physiological Responses of Two Olive Cultivars to Salt Stress
	Boussadia, Olfa; Zgallai, Hatem; Mzid, Nada; Zaabar, Rihem; Braham, Mohamed; Doupis, Georgios; Koubouris, Georgios
通讯作者	Boussadia, O
来源期刊	PLANTS-BASEL
ISSN	2223-7747
出版年	2023
卷号	12 期号:10
英文摘要	The olive tree (Olea europaea L.) is the main fruit tree in most of the arid and semi-arid regions of Tunisia, which is where the problem of salinity is more pronounced. Salinity is one of the main factors that affects the productivity of olive trees, so the objective of this experiment was to study the effects of salinity on the photosynthesis, water relations, mineral status, and enzymatic activity of two cultivars of Olea europaea L., 'Chemlali' and 'Koroneiki'. The trial was conducted under controlled conditions in a greenhouse for a period of 49 days and included two treatments: T0 control and T100 (irrigation with 100 mM of NaCl solution). Under salinity stress, the photosynthesis, stomatal conductance, and leaves of both cultivars were negatively affected. 'Chemlali' showed greater tolerance to NaCl salinity, based on a progressive decrease in osmotic potential (?p) followed by a progressive and synchronous decrease in gs, without a comparable decrease in photosynthesis. The water use efficiency (WUE) improved as a result. In addition, the K+/Na+ ratio in 'Chemlali' rose. This appears to be crucial for managing stress. Conversely, enzymatic activity showed an accumulation of glutathione peroxidase (GPX) in stressed plants. The catalase (CAT) and ascorbate peroxidase (APX) content decreased in both stressed varieties. It can be concluded that the cultivar 'Koroneiki' is more susceptible to salt stress than the cultivar 'Chemlali', because the accumulation of GPX and the decreases in CAT and APX were more pronounced in this cultivar.
英文关键词	antioxidant enzymes climate change K+/Na+ ratio Olea europaea L photosynthesis plant phenotyping
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000997492100001
WOS关键词	OLEA-EUROPAEA L. ; SALINITY STRESS ; GAS-EXCHANGE ; OXIDATIVE DAMAGE ; LEAF DEVELOPMENT ; ION CONTENT ; TOLERANCE ; PHOTOSYNTHESIS ; GROWTH ; LEAVES
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/2XILL650/398068
推荐引用方式 GB/T 7714	Boussadia, Olfa,Zgallai, Hatem,Mzid, Nada,et al. Physiological Responses of Two Olive Cultivars to Salt Stress[J],2023,12(10).
APA	Boussadia, Olfa.,Zgallai, Hatem.,Mzid, Nada.,Zaabar, Rihem.,Braham, Mohamed.,...&Koubouris, Georgios.(2023).Physiological Responses of Two Olive Cultivars to Salt Stress.PLANTS-BASEL,12(10).
MLA	Boussadia, Olfa,et al."Physiological Responses of Two Olive Cultivars to Salt Stress".PLANTS-BASEL 12.10(2023).