Two phases of response to long-term moderate heat: Variation in thermotolerance between Arabidopsis thaliana and its relative Arabis paniculata

doi:10.1016/j.phytochem.2016.01.003

	Two phases of response to long-term moderate heat: Variation in thermotolerance between Arabidopsis thaliana and its relative Arabis paniculata
	Tang, Ting 1,3; Liu, Peile 2,3; Zheng, Guowei 1,2; Li, Weiqi1,2
	2016-02-01
发表期刊	PHYTOCHEMISTRY
卷号	122 页码:81-90
摘要	Long-term moderate heat is often experienced by plants and will become even more common in the future due to global warming. However, the responses of plants to this stress have not been characterised. In the present study, growth between Arabidopsis thaliana and its relative Arabis paniculata upon long-term exposure to moderate heat was compared. It was found that the latter was more tolerant than the former, and the patterns of physiological and biochemical responses of both plants presented two phases. The early phase involved no significant visible morphological and physiological changes. It occurred during the first third of the heat treatment and was extended when the stress was attenuated. During the later phase, the plants died or were damaged. Heat shock proteins were dramatically induced at the early phase and gradually decreased at the later phase in A. thaliana. By contrast, the levels were induced and maintained in A. paniculata. Profiling of membrane lipids found that the two plants exhibited opposite patterns of lipid remodelling at the early phase: A. paniculata synthesised phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine and phosphatidylinositol and showed a rapid decrease in the degree of lipid unsaturation, while A. thaliana degraded its lipids at the early phase and showed an accelerated degradation at the later phase. These biochemical adjustments during the early phase could favor the thermotolerance of A. paniculata. These results suggest that this species could thus be a model for the study of resistance to long-term moderate heat, through a strategy by which plants can adapt to long-term moderate heat. (C) 2016 Elsevier Ltd. All rights reserved.
关键词	Arabis Paniculata Arabidopsis Thaliana Cruciferae Long-term Moderate Heat Photosynthesis Heat Shock Protein Membrane Lipids
DOI	10.1016/j.phytochem.2016.01.003
收录类别	SCI
语种	英语
WOS记录号	WOS:000369460200008
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/25940
专题	中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Tang, Ting,Liu, Peile,Zheng, Guowei,et al. Two phases of response to long-term moderate heat: Variation in thermotolerance between Arabidopsis thaliana and its relative Arabis paniculata[J]. PHYTOCHEMISTRY,2016,122:81-90.
APA	Tang, Ting,Liu, Peile,Zheng, Guowei,&Li, Weiqi.(2016).Two phases of response to long-term moderate heat: Variation in thermotolerance between Arabidopsis thaliana and its relative Arabis paniculata.PHYTOCHEMISTRY,122,81-90.
MLA	Tang, Ting,et al."Two phases of response to long-term moderate heat: Variation in thermotolerance between Arabidopsis thaliana and its relative Arabis paniculata".PHYTOCHEMISTRY 122(2016):81-90.

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