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REVIEW article
Front. Plant Sci.
Sec. Plant Abiotic Stress
Volume 15 - 2024 |
doi: 10.3389/fpls.2024.1489993
This article is part of the Research Topic New Advances of Silicon in the Soil-Plant System View all 6 articles
Tobacco production under global climate change: combined effects of heat and drought stress and coping strategies
Provisionally accepted- 1 Southwest University, Chongqing, China
- 2 Institute of Grain Crops Agricultural Science Extension research Institute of Dali Bai autonomous prefecture, Dali, China
- 3 Dali Prefecture Branch of Yunnan Tobacco Company, Dali, China
- 4 Yunnan Agricultural University, Kunming, Yunnan, China
With the intensification of global climate change, high-temperature and drought stress have emerged as critical environmental stressors affecting tobacco plants' growth, development, and yield. This study provides a comprehensive review of tobacco's physiological and biochemical responses to optimal temperature conditions and limited irrigation across various growth stages. It assesses the effects of these conditions on yield and quality, along with the synergistic interactions and molecular mechanisms associated with these stressors. High-temperature and drought stress induces alterations in both enzymatic and non-enzymatic antioxidant activities, lead to the accumulation of reactive oxygen species (ROS), and promote lipid peroxidation, all of which adversely impact physiological processes such as photosynthetic gas exchange, respiration, and nitrogen metabolism, ultimately resulting in reduced biomass, productivity, and quality. The interaction of these stressors activates novel plant defense mechanisms, contributing to exacerbated synergistic damage. Optimal temperature conditions enhance the activation of heat shock proteins (HSPs) and antioxidant-related genes at the molecular level. At the same time, water stress triggers the expression of genes regulated by both abscisic acid-dependent and independent signalling pathways. This review also discusses contemporary agricultural management strategies, applications of genetic engineering, and biotechnological and molecular breeding methods designed to mitigate adverse agroclimatic responses, focusing on enhancing tobacco production under heat and drought stress conditions.
Keywords: high temperature, Limited water irrigation, interactive role of high temperature and water stress, plant growth-yield-quality, Physiological mechanisms, Tobacco
Received: 02 Sep 2024; Accepted: 08 Nov 2024.
Copyright: © 2024 Liu, Liu, Song, Hu, Yang, Li, Jin, Gu, Yang, Huang, Su and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Yuxiao Song, Institute of Grain Crops Agricultural Science Extension research Institute of Dali Bai autonomous prefecture, Dali, China
Yanxia Hu, Dali Prefecture Branch of Yunnan Tobacco Company, Dali, China
Chengwei Yang, Dali Prefecture Branch of Yunnan Tobacco Company, Dali, China
Juan Li, Dali Prefecture Branch of Yunnan Tobacco Company, Dali, China
Shuangzhen Jin, Dali Prefecture Branch of Yunnan Tobacco Company, Dali, China
Kaiyuan Gu, Southwest University, Chongqing, China
Zexian Yang, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
Wenwu Huang, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
Jiaen Su, Dali Prefecture Branch of Yunnan Tobacco Company, Dali, China
Longchang Wang, Southwest University, Chongqing, China
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