干旱区生态环境知识资源中心(Arid): Morphological performance and seasonal pattern of water relations and gas exchange in Pistacia lentiscus plants subjected to salinity and water deficit

Arid

DOI	10.3389/fpls.2023.1237332
	Morphological performance and seasonal pattern of water relations and gas exchange in Pistacia lentiscus plants subjected to salinity and water deficit
	Alvarez, Sara; Acosta-Motos, Jose Ramon; Sanchez-Blanco, Maria Jesus
通讯作者	Alvarez, S
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2023
卷号	14
英文摘要	Soil water deficit and salinity represent a major factor impacting plant survival and agricultural production. The frequency and severity of both abiotic stresses are expected to increase in a context of climate change, especially in arid and semi-arid regions. This work studied the growth pattern, biomass and mineral distribution and the seasonal pattern of water status, photosynthetic rate and stomatal conductance in plant of Pistacia lentiscus grown under different levels of water deficit and salinity. P. lentiscus plants growing under greenhouse conditions were subjected to four irrigation treatments during 11 months: control (C, 1 dS m(-1)), moderate water deficit (MW, 1dS m(-1), 60% of the control), severe water deficit (SW, 1 dS m(-1), 40% of the control) and saline (S, 4dS m(-1)). The results show that Pistacia lentiscus plants were more affected by deficit irrigation than salinity. Deficit irrigation and salinity inhibited plant height, with reductions of 20%, 22% and 35% for S, MW and SW, respectively. Total leaf area was not modified by effect of the treatments, with the result that plant compactness increased in MW. The salt stressed plants only showed lower relative growth rate at the end of the experiment. Plants responded to saline or drought stress by increasing their osmotic adjustment, which was more pronounced under salinity. Saline plants had the highest values in Na+ and Cl- ions and the lowest values for K+/Na+ and Ca2+/Na+ ratios in leaves and stems, which is correlated with a decrease in growth, stomatal conductance, photosynthesis and stem water potential, and can be used as a diagnostic tool to assess plant tolerance to salinity stress. As a measure of plant hydration, relative water content was more sensitive to deficit irrigation than salinity, being a good indicator of water stress. P. lentiscus plants subjected to both deficit irrigation treatments exhibited an increase in their intrinsic water use efficiency, which is an important adaptation for plants growing in environments with water scarcity.
英文关键词	biomass accumulation gas exchange ion uptake irrigation mineral distribution osmotic adjustment principal component analysis water status
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:001069163500001
WOS关键词	MYRTUS-COMMUNIS PLANTS ; IRRIGATION ; GROWTH ; TOLERANCE ; DROUGHT ; RESPONSES ; STRESS ; ADAPTATION ; STRATEGIES ; PARAMETERS
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/2XILL650/396620
推荐引用方式 GB/T 7714	Alvarez, Sara,Acosta-Motos, Jose Ramon,Sanchez-Blanco, Maria Jesus. Morphological performance and seasonal pattern of water relations and gas exchange in Pistacia lentiscus plants subjected to salinity and water deficit[J],2023,14.
APA	Alvarez, Sara,Acosta-Motos, Jose Ramon,&Sanchez-Blanco, Maria Jesus.(2023).Morphological performance and seasonal pattern of water relations and gas exchange in Pistacia lentiscus plants subjected to salinity and water deficit.FRONTIERS IN PLANT SCIENCE,14.
MLA	Alvarez, Sara,et al."Morphological performance and seasonal pattern of water relations and gas exchange in Pistacia lentiscus plants subjected to salinity and water deficit".FRONTIERS IN PLANT SCIENCE 14(2023).