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Review
. 2023 Dec 26;25(1):324.
doi: 10.3390/ijms25010324.

Calcium Signaling and the Response to Heat Shock in Crop Plants

Xinmiao Kang  1 , Liqun Zhao  1 , Xiaotong Liu  1
Affiliations
Review

Calcium Signaling and the Response to Heat Shock in Crop Plants

Xinmiao Kang et al. Int J Mol Sci. .

Abstract

Climate change and the increasing frequency of high temperature (HT) events are significant threats to global crop yields. To address this, a comprehensive understanding of how plants respond to heat shock (HS) is essential. Signaling pathways involving calcium (Ca2+), a versatile second messenger in plants, encode information through temporal and spatial variations in ion concentration. Ca2+ is detected by Ca2+-sensing effectors, including channels and binding proteins, which trigger specific cellular responses. At elevated temperatures, the cytosolic concentration of Ca2+ in plant cells increases rapidly, making Ca2+ signals the earliest response to HS. In this review, we discuss the crucial role of Ca2+ signaling in raising plant thermotolerance, and we explore its multifaceted contributions to various aspects of the plant HS response (HSR).

Keywords: Ca2+ signaling; crop yield; thermotolerance.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Calcium (Ca2+) channels involved in sensing heat. (By Figdraw).
Figure 2
Figure 2
Ca2+ signaling pathway under heat shock (HS) (By Figdraw).
See this image and copyright information in PMC

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