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DOI	10.3390/antiox13040448
	Higher Intensity of Salt Stress Accompanied by Heat Inhibits Stomatal Conductance and Induces ROS Accumulation in Tomato Plants
	Li, Yankai; Jiang, Fangling; He, Zhenxiang; Liu, Yi; Chen, Zheng; Ottosen, Carl-Otto; Mittler, Ron; Wu, Zhen; Zhou, Rong
发表日期	2024
EISSN	2076-3921
起始页码	13
结束页码	4
卷号	13 期号:4
英文摘要	Under natural conditions, abiotic stresses that limit plant growth and development tend to occur simultaneously, rather than individually. Due to global warming and climate change, the frequency and intensity of heat and salt stresses are becoming more frequent. Our aim is to determine the response mechanisms of tomato to different intensities of combined heat and salt stresses. The physiological and morphological responses and photosynthesis/reactive oxygen species (ROS)-related genes of tomato plants were compared under a control, heat stress, salt stress (50/100/200/400 mM NaCl), and a combination of salt and heat stresses. The stomatal conductance (gs) of tomato leaves significantly increased at a heat + 50 mM NaCl treatment on day 4, but significantly decreased at heat + 100/200/400 mM NaCl treatments, compared with the control on days 4 and 8. The O2- production rate of tomato plants was significantly higher at heat + 100/200/400 mM NaCl than the control, which showed no significant difference between heat + 50 mM NaCl treatment and the control on days 4 and 8. Ascorbate peroxidase 2 was significantly upregulated by heat + 100/200/400 mM NaCl treatment as compared with heat + 50 mM NaCl treatment on days 4 and 8. This study demonstrated that the dominant effect ratio of combined heat and salt stress on tomato plants can shift from heat to salt, when the intensity of salt stress increased from 50 mM to 100 mM or above. This study provides important information for tomato tolerance improvement at combined heat and salt stresses.
英文关键词	tomato; combined heat and salt; stress intensity; stress duration; gas exchange; reactive oxygen species
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Pharmacology & Pharmacy ; Food Science & Technology
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Medicinal ; Food Science & Technology
WOS记录号	WOS:001210072300001
来源期刊	ANTIOXIDANTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299099
作者单位	Nanjing Agricultural University; Aarhus University; University of Missouri System; University of Missouri Columbia
推荐引用方式 GB/T 7714	Li, Yankai,Jiang, Fangling,He, Zhenxiang,et al. Higher Intensity of Salt Stress Accompanied by Heat Inhibits Stomatal Conductance and Induces ROS Accumulation in Tomato Plants[J],2024,13(4).
APA	Li, Yankai.,Jiang, Fangling.,He, Zhenxiang.,Liu, Yi.,Chen, Zheng.,...&Zhou, Rong.(2024).Higher Intensity of Salt Stress Accompanied by Heat Inhibits Stomatal Conductance and Induces ROS Accumulation in Tomato Plants.ANTIOXIDANTS,13(4).
MLA	Li, Yankai,et al."Higher Intensity of Salt Stress Accompanied by Heat Inhibits Stomatal Conductance and Induces ROS Accumulation in Tomato Plants".ANTIOXIDANTS 13.4(2024).