Molecular Basis and Engineering Strategies for Transcription Factor-Mediated Reproductive-Stage Heat Tolerance in Crop Plants
Author:
Sharma Niharika1ORCID, Sharma Lakshay2, Onkarappa Dhanyakumar34ORCID, Yogendra Kalenahalli4ORCID, Bose Jayakumar5ORCID, Sharma Rita A.2ORCID
Affiliation:
1. NSW Department of Primary Industries, Orange Agricultural Institute, Orange, NSW 2800, Australia 2. Department of Biological Sciences, Birla Institute of Technology & Science Pilani (BITS Pilani), Pilani Campus, Pilani 333031, India 3. Department of Entomology, Tamil Nadu Agricultural University, Coimbatore 641003, India 4. International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502324, India 5. School of Science, Hawkesbury Institute for the Environment (HIE), Western Sydney University, Richmond, NSW 2753, Australia
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.
Funder
NSW Department of Primary Industries Australian Research Council Future Fellowship Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Government of India
Subject
Agronomy and Crop Science
Reference287 articles.
1. Pachauri, R.K., Allen, M.R., Barros, V.R., Broome, J., Cramer, W., Christ, R., Church, J.A., Clarke, L., Dahe, Q., and Dasgupta, P. (2014). Climate Change 2014: Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, IPCC. 2. Global Warming, Climate Change, and Environmental Pollution: Recipe for a Multifactorial Stress Combination Disaster;Zandalinas;Trends Plant Sci.,2021 3. Heat and drought stresses in crops and approaches for their mitigation;Lamaoui;Front. Chem.,2018 4. Drought, salt, and temperature stress-induced metabolic rearrangements and regulatory networks;Krasensky;J. Exp. Bot.,2012 5. Physiological, biochemical, and molecular mechanisms of heat stress tolerance in plants;Hasanuzzaman;Int. J. Mol. Sci.,2013
|
|