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

Phytochemistry
Ting TangWeiqi Li

Abstract

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 li...Continue Reading

References

Jan 12, 2001·Plant Physiology·M F Thomashow
Sep 24, 2004·Proceedings of the National Academy of Sciences of the United States of America·Daniel CookMichael F Thomashow
Jul 19, 2005·Trends in Plant Science·Christa Testerink, Teun Munnik
Apr 4, 2009·Photosynthesis Research·Ru Zhang, Thomas D Sharkey

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Citations

Jul 19, 2018·Frontiers in Plant Science·Yue Niu, Yun Xiang
Feb 13, 2018·Temperature : Multidisciplinary Biomedical Journal·Catarina C NievolaEdson Rodrigues
May 18, 2021·Plant Diversity·Ting TangWeiqi Li
Nov 22, 2021·Physiologia Plantarum·Charlotte SeydelThomas Nägele

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