Molecular Basis and Engineering Strategies for Transcription Factor-Mediated Reproductive-Stage Heat Tolerance in Crop Plants

    Sharma, N and Sharma, L and Onkarappa, D and Yogendra, K and Bose, J and Sharma, R A (2024) Molecular Basis and Engineering Strategies for Transcription Factor-Mediated Reproductive-Stage Heat Tolerance in Crop Plants. Agronomy (TSI), 14 (1). pp. 1-31. ISSN 2073-4395

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    Abstract

    Heat stress (HS) is a major threat to crop productivity and is expected to be more frequent and severe due to climate change challenges. The predicted increase in global temperature requires us to understand the dimensions of HS experienced by plants, particularly during reproductive stages, as crop productivity is majorly dependent on the success of plant reproduction. The impact of HS on crop productivity is relatively less-studied than the other abiotic stresses, such as drought and salinity. Plants have evolved diverse mechanisms to perceive, transduce, respond, and adapt to HS at the molecular, biochemical, and physiological levels. Unraveling these complex mechanisms underlying plant HS response and tolerance would facilitate designing well-informed and effective strategies to engineer HS tolerance in crop plants. In this review, we concisely discuss the molecular impact of HS on plant reproductive processes and yield, with major emphasis on transcription factors. Moreover, we offer vital strategies (encompassing omics studies, genetic engineering and more prominently gene editing techniques) that can be used to engineer transcription factors for enhancing heat tolerance. Further, we highlight critical shortcomings and knowledge gaps in HS tolerance research that should guide future research investigations. Judicious studies and a combination of these strategies could speed up the much-needed development of HS-resilient crop cultivars.

    Item Type: Article
    Divisions: Global Research Program - Accelerated Crop Improvement
    CRP: UNSPECIFIED
    Uncontrolled Keywords: heat stress, transcription factors, reproductive stage, omics approaches, CRISPR gene editing
    Subjects: Others > Genetic Engineering
    Others > Crop Yield
    Others > Climate Change
    Depositing User: Mr Nagaraju T
    Date Deposited: 14 Jun 2024 08:40
    Last Modified: 14 Jun 2024 08:40
    URI: http://oar.icrisat.org/id/eprint/12707
    Official URL: https://www.mdpi.com/2073-4395/14/1/159
    Projects: CRG/2020/003466 and STR/2022/000013
    Funders: NSW Department of Primary Industries, Australian Research Council Future Fellowship and Grain Research Development Corporation, Science and Engineering Research Board (SERB), Department of Science and Technology, Government of India
    Acknowledgement: All figures were created with BioRender.com. Bernie Dominiak and Dave Wheeler reviewed the pre-submission version of the manuscript. Additionally, we also thank the journal reviewers for their constructive comments and feedback.
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