The hot science in rice research: How rice plants cope with heat stress

Li, Jinyu; Yang, Chuang; Xu, Jiming; Lu, Haiping

doi:10.1111/pce.14509

Cited by 38 publications

(31 citation statements)

References 170 publications

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“…Enhancing heat stress tolerance in plants is crucial due to the detrimental effects of extreme temperatures on plant growth, development, and productivity (Lobell et al, 2011). Heat stress negatively impacts crop yield and quality, reducing photosynthesis, carbon assimilation, energy metabolism, and disrupting reproductive processes like flower formation and pollen viability (Li et al, 2023). Understanding the mechanisms underlying heat stress tolerance in plants is vital for developing strategies to improve thermotolerance.…”

Section: Discussionmentioning

confidence: 99%

“…As stationary organisms, plants have developed various strategies to withstand changing environmental conditions (Ding et al, 2020). Numerous studies have demonstrated that plants are more vulnerable to heat stress during the reproductive stage compared with the vegetative stage (Ma et al, 2020; Chaturvedi et al, 2021; Li et al, 2023). However, the mechanisms by which plants adapt to heat stress during the reproductive stage are not well understood in relation to the vegetative stage.…”

Section: Introductionmentioning

confidence: 99%

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NFXL1 functions as a transcriptional activator required for thermotolerance at reproductive stage in Arabidopsis

Zhu,

Zhang,

Liu

2024

JIPB

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Plants are highly susceptible to abiotic stresses, particularly heat stress during the reproductive stage. However, the specific molecular mechanisms underlying this sensitivity remain largely unknown. In the current study, we demonstrate that the Nuclear Transcription Factor, X‐Box Binding Protein 1‐Like 1 (NFXL1), directly regulates the expression of DEHYDRATION‐RESPONSIVE ELEMENT‐BINDING PROTEIN 2A (DREB2A), which is crucial for reproductive thermotolerance in Arabidopsis. NFXL1 is up‐regulated by heat stress, and its mutation leads to a reduction in silique length (seed number) under heat stress conditions. RNA‐Seq analysis reveals that NFXL1 has a global impact on the expression of heat stress responsive genes, including DREB2A, Heat Shock Factor A3 (HSFA3) and Heat Shock Protein 17.6 (HSP17.6) in flower buds. Interestingly, NFXL1 is enriched in the promoter region of DREB2A, but not of either HSFA3 or HSP17.6. Further experiments using electrophoretic mobility shift assay have confirmed that NFXL1 directly binds to the DNA fragment derived from the DREB2A promoter. Moreover, effector‐reporter assays have shown that NFXL1 activates the DREB2A promoter. The DREB2A mutants are also heat stress sensitive at reproductive stage, and DEREB2A is epistatic to NFXL1 in regulating thermotolerance in flower buds. It is known that HSFA3, a direct target of DREB2A, regulates the expression of HSP genes under heat stress conditions. Thus, our findings establish NFXL1 as a critical upstream regulator of DREB2A in the transcriptional cassette responsible for heat stress responses required for reproductive thermotolerance in Arabidopsis.This article is protected by copyright. All rights reserved.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

NFXL1 functions as a transcriptional activator required for thermotolerance at reproductive stage in Arabidopsis

Zhu,

Zhang,

Liu

2024

JIPB

Self Cite

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“…The effects of heat stress on rice production, quality, physiology, heat‐regulated genes and networks have been well summarized (Jagadish et al, 2015; Y. Yang, Yu, et al, 2022). Li et al (2023), in this issue, reviewed mainly recent advances in heat sensing and signalling, regulation of the heat stress response in rice, besides irreversible effects of heat stress on photosynthesis, reproduction, and quality in rice (J. Y. Li et al, 2023). The capacity of rice to balance heat stress response and growth, needs more attentions in future studies.…”

Section: Abiotic Resilience Of Ricementioning

confidence: 99%

Prospects for rice in 2050

Shi

Weber

et al. 2023

Plant Cell & Environment

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A key to achieve the goals put forward in the UN's 2030 Agenda for Sustainable Development, it will need transformative change to our agrifood systems. We must mount to the global challenge to achieve food security in a sustainable manner in the context of climate change, population growth, urbanization, and depletion of natural resources. Rice is one of the major staple cereal crops that has contributed, is contributing, and will still contribute to the global food security. To date, rice yield has held pace with increasing demands, due to advances in both fundamental and biological studies, as well as genomic and molecular breeding practices. However, future rice production depends largely on the planting of resilient cultivars that can acclimate and adapt to changing environmental conditions. This Special Issue highlight with reviews and original research articles the exciting and growing field of rice‐environment interactions that could benefit future rice breeding. We also outline open questions and propose future directions of 2050 rice research, calling for more attentions to develop environment‐resilient rice especially hybrid rice, upland rice and perennial rice.

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“…Together, these thermosensors sense high temperatures in the environment and efficiently, repeatedly, and stably transmit heat signals to downstream response factors (Vu et al, 2019;Guihur et al, 2022). On the other hand, research into rice has mainly focused on the response to hightemperature stress in recent years, but it is well established that hightemperature stress can cause protein misfolding and accumulation of high levels of reactive oxygen species (ROS) in rice, which reduce plant thermotolerance (Li et al, 2022).…”

Section: Heat Stress Responses In Ricementioning

confidence: 99%

How rice adapts to high temperatures

et al. 2023

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High-temperature stress affects crop yields worldwide. Identifying thermotolerant crop varieties and understanding the basis for this thermotolerance would have important implications for agriculture, especially in the face of climate change. Rice (Oryza sativa) varieties have evolved protective strategies to acclimate to high temperature, with different thermotolerance levels. In this review, we examine the morphological and molecular effects of heat on rice in different growth stages and plant organs, including roots, stems, leaves and flowers. We also explore the molecular and morphological differences among thermotolerant rice lines. In addition, some strategies are proposed to screen new rice varieties for thermotolerance, which will contribute to the improvement of rice for agricultural production in the future.

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The hot science in rice research: How rice plants cope with heat stress

Cited by 38 publications

References 170 publications

NFXL1 functions as a transcriptional activator required for thermotolerance at reproductive stage in Arabidopsis

NFXL1 functions as a transcriptional activator required for thermotolerance at reproductive stage in Arabidopsis

Prospects for rice in 2050

How rice adapts to high temperatures

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