Abstract
Rice production is facing substantial threats from global warming associated with extreme temperatures. Here we report that modifying a heat stress-induced negative regulator, a negative regulator of thermotolerance 1 (NAT1), increases wax deposition and enhances thermotolerance in rice. We demonstrated that the C2H2 family transcription factor NAT1 directly inhibits bHLH110 expression, and bHLH110 directly promotes the expression of wax biosynthetic genes CER1/CER1L under heat stress conditions. In situ hybridization revealed that both NAT1 and bHLH110 are predominantly expressed in epidermal layers. By using gene-editing technology, we successfully mutated NAT1 to eliminate its inhibitory effects on wax biosynthesis and improved thermotolerance without yield penalty under normal temperature conditions. Field trials further confirmed the potential of NAT1-edited rice to increase seed-setting rate and grain yield. Therefore, our findings shed light on the regulatory mechanisms governing wax biosynthesis under heat stress conditions in rice and provide a strategy to enhance heat resilience through the modification of NAT1.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 / 30 days
cancel any time
Subscribe to this journal
Receive 12 print issues and online access
$209.00 per year
only $17.42 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
Data availability
The RNA-seq data are deposited in the NCBI-SRA database (PRJNA1171028) and the Genome Sequence Archive database (CRA013469). All data supporting the findings of this study are available within the paper and its Supplementary Information. Source data are provided with this paper.
Code availability
All software used in the study are publicly available from the Internet as described in the Methods and Reporting Summary.
Change history
31 January 2025
A Correction to this paper has been published: https://doi.org/10.1038/s41588-025-02106-4
References
Tilman, D., Balzer, C., Hill, J. & Befort, B. L. Global food demand and the sustainable intensification of agriculture. Proc. Natl Acad. Sci. USA 108, 20260–20264 (2011).
Lobell, D. B., Schlenker, W. & Costa-Roberts, J. Climate trends and global crop production since 1980. Science 333, 616–620 (2011).
Lesk, C., Rowhani, P. & Ramankutty, N. Influence of extreme weather disasters on global crop production. Nature 529, 84–87 (2016).
Li, J. Y., Yang, C., Xu, J., Lu, H. P. & Liu, J. X. The hot science in rice research: how rice plants cope with heat stress. Plant Cell Environ. 46, 1087–1103 (2023).
Sun, J. L., Li, J. Y., Wang, M. J., Song, Z. T. & Liu, J. X. Protein quality control in plant organelles: current progress and future perspectives. Mol. Plant 14, 95–114 (2021).
Zhang, J. Y., Li, X. M., Lin, H. X. & Chong, K. Crop improvement through temperature resilience. Annu. Rev. Plant Biol. 70, 753–780 (2019).
Kan, Y., Mu, X. R., Gao, J., Lin, H. X. & Lin, Y. The molecular basis of heat stress responses in plants. Mol. Plant 16, 1612–1634 (2023).
Zhang, H. et al. A genetic module at one locus in rice protects chloroplasts to enhance thermotolerance. Science 376, 1293–1300 (2022).
Li, J. & Liu, J. TT3.1: a journey to protect chloroplasts upon heat stress. Stress Biol. 2, 27 (2022).
Liu, X. H. et al. A membrane-associated NAC transcription factor OsNTL3 is involved in thermotolerance in rice. Plant Biotechnol. J. 18, 1317–1329 (2020).
Kan, Y. et al. TT2 controls rice thermotolerance through SCT1-dependent alteration of wax biosynthesis. Nat. Plants 8, 53–67 (2022).
Li, X. M. et al. Natural alleles of a proteasome α2 subunit gene contribute to thermotolerance and adaptation of African rice. Nat. Genet. 47, 827–833 (2015).
Islam, M. A., Du, H., Ning, J., Ye, H. & Xiong, L. Characterization of Glossy1-homologous genes in rice involved in leaf wax accumulation and drought resistance. Plant Mol. Biol. 70, 443–456 (2009).
Sugio, A., Dreos, R., Aparicio, F. & Maule, A. J. The cytosolic protein response as a subcomponent of the wider heat shock response in Arabidopsis. Plant Cell 21, 642–654 (2009).
Guo, M. et al. The plant heat stress transcription factors (HSFs): structure, regulation, and function in response to abiotic stresses. Front. Plant Sci. 7, 114 (2016).
Zhang, S. S. et al. Tissue-specific transcriptomics reveals an important role of the unfolded protein response in maintaining fertility upon heat stress in Arabidopsis. Plant Cell 29, 1007–1023 (2017).
He, Y. B. et al. Programmed self-elimination of the CRISPR/Cas9 construct greatly accelerates the isolation of edited and transgene-free rice plants. Mol. Plant 11, 1210–1213 (2018).
Arshad, M. S. et al. Thermal stress impacts reproductive development and grain yield in rice. Plant Physiol. Biochem. 115, 57–72 (2017).
Kagale, S. & Rozwadowski, K. EAR motif-mediated transcriptional repression in plants: an underlying mechanism for epigenetic regulation of gene expression. Epigenetics 6, 141–146 (2011).
Aarts, M. G. M., Keijzer, C. J., Stiekema, W. J. & Pereira, A. Molecular characterization of the CER1 gene of Arabidopsis involved in epicuticular wax biosynthesis and pollen fertility. Plant Cell 7, 2115–2127 (1995).
Ni, E. et al. OsCER1 plays a pivotal role in very-long-chain alkane biosynthesis and affects plastid development and programmed cell death of tapetum in rice (Oryza sativa L.). Front. Plant Sci. 9, 1217 (2018).
Persikov, A. V. & Singh, M. De novo prediction of DNA-binding specificities for Cys2His2 zinc finger proteins. Nucleic Acids Res. 42, 97–108 (2014).
Kovach, M. J., Sweeney, M. T. & McCouch, S. R. New insights into the history of rice domestication. Trends Genet. 23, 578–587 (2007).
Huang, X. et al. A map of rice genome variation reveals the origin of cultivated rice. Nature 490, 497–501 (2012).
Yeats, T. H. & Rose, J. K. C. The formation and function of plant cuticles. Plant Physiol. 163, 5–20 (2013).
Lewandowska, M., Keyl, A. & Feussner, I. Wax biosynthesis in response to danger: its regulation upon abiotic and biotic stress. New Phytol. 227, 698–713 (2020).
Lee, S. B. & Suh, M. C. Regulatory mechanisms underlying cuticular wax biosynthesis. J. Exp. Bot. 73, 2799–2816 (2022).
Ni, E. et al. OsCER1 regulates humidity-sensitive genic male sterility through very-long-chain (VLC) alkane metabolism of tryphine in rice. Funct. Plant Biol. 48, 461–468 (2021).
Wang, Z. et al. The E3 ligase drought hypersensitive negatively regulates cuticular wax biosynthesis by promoting the degradation of transcription factor ROC4 in rice. Plant Cell 30, 228–244 (2018).
Jian, L., Kang, K., Choi, Y., Suh, M. C. & Paek, N. C. Mutation of OsMYB60 reduces rice resilience to drought stress by attenuating cuticular wax biosynthesis. Plant J. 112, 339–351 (2022).
Sadok, W., Lopez, J. R. & Smith, K. P. Transpiration increases under high-temperature stress: potential mechanisms, trade-offs and prospects for crop resilience in a warming world. Plant Cell Environ. 44, 2102–2116 (2021).
Masle, J., Gilmore, S. R. & Farquhar, G. D. The ERECTA gene regulates plant transpiration efficiency in Arabidopsis. Nature 436, 866–870 (2005).
Shen, H. et al. Overexpression of receptor-like kinase ERECTA improves thermotolerance in rice and tomato. Nat. Biotechnol. 33, 996–1003 (2015).
Huang, X. Y. et al. A previously unknown zinc finger protein, DST, regulates drought and salt tolerance in rice via stomatal aperture control. Genes Dev. 23, 1805–1817 (2009).
Ding, Y. F. et al. Rice DST transcription factor negatively regulates heat tolerance through ROS-mediated stomatal movement and heat-responsive gene expression. Front. Plant Sci. 14, 1068296 (2023).
Liu, J. et al. The RING finger ubiquitin E3 ligase OsHTAS enhances heat tolerance by promoting H2O2-induced stomatal closure in rice. Plant Physiol. 170, 429–443 (2016).
Prasad, P. V. V., Bheemanahalli, R. & Jagadish, S. V. K. Field crops and the fear of heat stress—opportunities, challenges and future directions. Field Crops Res. 200, 114–121 (2017).
Yang, C., Luo, A., Lu, H. P., Davis, S. J. & Liu, J. X. Diurnal regulation of alternative splicing associated with thermotolerance in rice by two glycine-rich RNA-binding proteins. Sci. Bull. 69, 59–71 (2024).
Yang, J. et al. Brassinosteroids modulate meristem fate and differentiation of unique inflorescence morphology in Setaria viridis. Plant Cell 30, 48–66 (2018).
Xie, L. et al. Population genomic analysis unravels the evolutionary roadmap of pericarp color in rice. Plant Commun. 5, 100778 (2024).
Acknowledgements
This project was financially supported by grants from the State Key Project of Research and Development Plan (2022YFF1001603 to J.-X.L.) and the Zhejiang Provincial Natural Science Foundation of China (LD21C020001 to J.-X.L.). We would like to thank S.-J. Lu for initiating the project, Z. Ma for technical assistance, X. Huang and L. Fan for advice on domestication analysis, and L.-M. Cao and J.-L. Huang for providing the SZX and YZX recipient seeds, respectively.
Author information
Authors and Affiliations
Contributions
J.-X.L., H.-P.L., X.-H.L. and M.-J.W. designed the experiments. H.P.L., X.-H.L., M.-J.W., Q.-Y.Z., Y.-S.L. and J.-H.X. performed the experiments. J.-X.L. and H.-P.L. analyzed the data. J.-X.L. and H.-P.L. wrote the paper.
Corresponding author
Ethics declarations
Competing interests
The authors declare no competing interests.
Peer review
Peer review information
Nature Genetics thanks Weiqiang Qian and the other, anonymous, reviewer(s) for their contribution to the peer review of this work.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Supplementary information
Supplementary Information
Supplementary Table 1, Supplementary Figs. 1–32 and Supporting data for Supplementary Figs. 2c and 9c (uncropped blots).
Supplementary Data
Supplementary Data 1: NAT1-regulated downstream genes. Supplementary Data 2: Natural variations in the promoter and UTR regions of NAT1 and bHLH110.
Source data
Source Data Fig. 3
Uncropped blot for Fig. 3e,i.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Lu, HP., Liu, XH., Wang, MJ. et al. The NAT1–bHLH110–CER1/CER1L module regulates heat stress tolerance in rice. Nat Genet 57, 427–440 (2025). https://doi.org/10.1038/s41588-024-02065-2
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/s41588-024-02065-2