Progress on Molecular Mechanism of Heat Tolerance in Rice

doi:10.1016/j.rsci.2024.07.001

Abstract

Abstract:

Rice (Oryza sativa L.) is a major food crop in China, and its high and stable yield is crucial for ensuring food security in the country. However, over the past few years, extreme weather events induced by global climate change have impacted rice growth. For example, the effects of heat stress on rice quality and yield have been significant. Therefore, it is fundamental to conduct in-depth research on the heat-tolerance mechanisms of rice and to cultivate superior new thermotolerant rice varieties. This review summarizes the adverse effects of high temperatures on rice growth at various stages, the heat-tolerance mechanisms in rice, and the heat-tolerance genes and QTLs that have been identified in recent years. We also discuss strategies to enhance the heat tolerance of rice, offering new insights for rice breeding research.

Key words: gene, heat stress, thermotolerance, high temperature, rice yield

Fu Yiwei, Wu Jiayelu, Wu Mingming, Ye Shenghai, Zhai Rongrong, Ye Jing, Zhu Guofu, Yu Faming, Lu Yanting, Zhang Xiaoming. Progress on Molecular Mechanism of Heat Tolerance in Rice[J]. Rice Science, 2024, 31(6): 673-687.

Figures/Tables 3

References 118

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Gene	Gene characteristics	Regulation	Function period	Reference
OsGSK1	Glycogen synthase kinase	+	Flowering	Koh et al, 2007
OsMYB55	MYB transcription factor	+	Seedling	El-Kereamy et al, 2012
OsHSP1	Heat-stimulated protein	+	Seedling	Moon et al, 2014
SNAC3	NAC transcription factor	+	Seedling	Fang et al, 2015
TT1	α2 subunit of the 26s proteasome	+	Seedling, flowering, filling	Li et al, 2015
OsANN1	Rice membrane-binding protein	+	Seedling	Qiao et al, 2015
ER/ERECTA	Receptor kinase	+	Seedling, flowering	Shen et al, 2015
OsHTAS	Ubiquitin ligase	+	Seedling	Liu et al, 2016
OsTOGR1	DEAD-box RNA helicase	+	Seedling	Wang et al, 2016
OsMDHAR4	Monodehydroascorbate reductase	−	Seedling	Liu et al, 2018
OsRGB1	Heterotrimeric G protein β subunit	+	Germination, seedling	Biswas et al, 2019
OsRab7	Small G protein	+	Seedling	El-Esawi and Alayafi, 2019
OsHIRP1	E3 ligase	+	Seedling	Kim et al, 2019
OsFBN1	Ciliary protein	+	Seedling, flowering, fertilization	Li et al, 2019
OsUBP21	Ubiquitin-specific protease	−	Seedling	Zhou et al, 2019
OsCNGC14	Cyclic nucleotide-gated ion channel protein	+	Seedling	Cui et al, 2020
OsNSUN2	m5C methyltransferase	+	Seedling	Tang et al, 2020
SLG1	Cytosolic tRNA 2-thiolated protein 2	+	Seedling, flowering	Xu Y F et al, 2020
HTS1	β-Ketoacyl carrier protein reductase	+	Seedling	Chen F et al, 2021
HTH5	Pyridoxal phosphate-binding protein	+	Seedling	Cao et al, 2022
TT2	Heterotrimeric G protein γ subunit	−	Seedling, flowering	Kan et al, 2022
TT3.1	E3 ubiquitin ligase protein	+	Seedling	Zhang et al, 2022
TT3.2	Chloroplast precursor protein	−	Seedling	Zhang et al, 2022
OsNCED1	9-cis-Epoxycarotenoid dioxygenase	+	Flowering	Zhou et al, 2022
OsSGS3	Gene silencing repressor	+	Seedling	Gu et al, 2023
OsGRP3/OsGRP162	RNA-binding protein	+	Seedling, booting, fertilization	Yang et al, 2024

Gene	Gene characteristics	Regulation	Function period	Reference
OsGSK1	Glycogen synthase kinase	+	Flowering	Koh et al, 2007
OsMYB55	MYB transcription factor	+	Seedling	El-Kereamy et al, 2012
OsHSP1	Heat-stimulated protein	+	Seedling	Moon et al, 2014
SNAC3	NAC transcription factor	+	Seedling	Fang et al, 2015
TT1	α2 subunit of the 26s proteasome	+	Seedling, flowering, filling	Li et al, 2015
OsANN1	Rice membrane-binding protein	+	Seedling	Qiao et al, 2015
ER/ERECTA	Receptor kinase	+	Seedling, flowering	Shen et al, 2015
OsHTAS	Ubiquitin ligase	+	Seedling	Liu et al, 2016
OsTOGR1	DEAD-box RNA helicase	+	Seedling	Wang et al, 2016
OsMDHAR4	Monodehydroascorbate reductase	−	Seedling	Liu et al, 2018
OsRGB1	Heterotrimeric G protein β subunit	+	Germination, seedling	Biswas et al, 2019
OsRab7	Small G protein	+	Seedling	El-Esawi and Alayafi, 2019
OsHIRP1	E3 ligase	+	Seedling	Kim et al, 2019
OsFBN1	Ciliary protein	+	Seedling, flowering, fertilization	Li et al, 2019
OsUBP21	Ubiquitin-specific protease	−	Seedling	Zhou et al, 2019
OsCNGC14	Cyclic nucleotide-gated ion channel protein	+	Seedling	Cui et al, 2020
OsNSUN2	m5C methyltransferase	+	Seedling	Tang et al, 2020
SLG1	Cytosolic tRNA 2-thiolated protein 2	+	Seedling, flowering	Xu Y F et al, 2020
HTS1	β-Ketoacyl carrier protein reductase	+	Seedling	Chen F et al, 2021
HTH5	Pyridoxal phosphate-binding protein	+	Seedling	Cao et al, 2022
TT2	Heterotrimeric G protein γ subunit	−	Seedling, flowering	Kan et al, 2022
TT3.1	E3 ubiquitin ligase protein	+	Seedling	Zhang et al, 2022
TT3.2	Chloroplast precursor protein	−	Seedling	Zhang et al, 2022
OsNCED1	9-cis-Epoxycarotenoid dioxygenase	+	Flowering	Zhou et al, 2022
OsSGS3	Gene silencing repressor	+	Seedling	Gu et al, 2023
OsGRP3/OsGRP162	RNA-binding protein	+	Seedling, booting, fertilization	Yang et al, 2024