干旱区生态环境知识资源中心(Arid): The effect of drought and saline water on the nutritional behaviour of the olive tree (Olea europaea L.) in an arid climate

Arid

DOI	10.1016/j.sajb.2023.11.047
	The effect of drought and saline water on the nutritional behaviour of the olive tree (Olea europaea L.) in an arid climate
	Trabelsi, Lina; Gargouri, Kamel; Ghrab, Mohamed; Mbadra, Chaker; Ben Hassena, Ameni; Ncube, Bhekumthetho; Soua, Nabil; Maktouf, Sameh; Khli, Mouna; Van Staden, Johannes; Gargouri, Radhia
通讯作者	Van Staden, J
来源期刊	SOUTH AFRICAN JOURNAL OF BOTANY
ISSN	0254-6299
EISSN	1727-9321
出版年	2024
卷号	165 页码:126-135
英文摘要	Irrigation with saline water is becoming a frequent practice in arid areas. This alternative may substitute for water scarcity. The role of nutrient uptake in olive trees is reflected in their metabolic functions to mitigate against drought and saline conditions. This study investigated the adaptive strategies of olive trees, with regard to their nutrient and water uptake under combined salt and water stress. The stress factors were man-aged by irrigation with tap water (EC=2.46 mS/cm) and saline water (EC=7.5 mS/cm) in an arid climate. Potassium (K+) and calcium (Ca2+) play an important role in the physiological performance of olive trees and improves their adaptation under drought and saline conditions. The highest levels of K+ were observed at 1 and 3.22% (% leaf dry matter) with both saline water and DRY treatments after re-watering, with a recovery of 56%. The Ca2+ content reached 1.57% (% leaf dry matter) in plants subjected to saline water which was higher than in the DRY regime (2.2%). During severe drought, olive trees maintained their mineral status by increasing nitrogen (N) content, leaf starch and soluble carbohydrate profiles. In trees irrigated with saline water and under DRY conditions, a high level of proline as a stress indicator was accompanied by an increase in total phenol content, malondialdehyde (MDA), and hydrogen peroxide (H2O2) concentrations. The physio-logical performance improved moderately under the saline conditions as compared to DRY conditions. Toler-ance to water shortage and salt stresses were linked to the accumulation of organic molecules and mineral elements in leaves.(c) 2023 SAAB. Published by Elsevier B.V. All rights reserved.
英文关键词	Olea europaea Salinity Drought Physiological performance Carbohydrates and mineral nutrients Antioxidant defence systems
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001147365500001
WOS关键词	SALT TOLERANCE ; NACL SALINITY ; NITROGEN ; STRESS ; PROLINE ; GROWTH ; PHOTOSYNTHESIS ; ANTIOXIDANTS ; ASSIMILATION ; PHOSPHORUS
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/2XILL650/405675
推荐引用方式 GB/T 7714	Trabelsi, Lina,Gargouri, Kamel,Ghrab, Mohamed,et al. The effect of drought and saline water on the nutritional behaviour of the olive tree (Olea europaea L.) in an arid climate[J],2024,165:126-135.
APA	Trabelsi, Lina.,Gargouri, Kamel.,Ghrab, Mohamed.,Mbadra, Chaker.,Ben Hassena, Ameni.,...&Gargouri, Radhia.(2024).The effect of drought and saline water on the nutritional behaviour of the olive tree (Olea europaea L.) in an arid climate.SOUTH AFRICAN JOURNAL OF BOTANY,165,126-135.
MLA	Trabelsi, Lina,et al."The effect of drought and saline water on the nutritional behaviour of the olive tree (Olea europaea L.) in an arid climate".SOUTH AFRICAN JOURNAL OF BOTANY 165(2024):126-135.