Enhancing drought stress tolerance in horticultural plants through melatonin-mediated phytohormonal crosstalk.

IF 5.3 2区 生物学 Q1 PLANT SCIENCES
Raphael Dzinyela, Delight Hwarari, Kwadwo Nketia Opoku, Liming Yang, Ali Movahedi
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Abstract

Key message: Melatonin and melatonin-mediated phytohormonal crosstalk play a multifaceted role in improving drought stress tolerance via molecular mechanisms and biochemical interactions in horticultural plants. The physical, physiological, biochemical, and molecular characteristics of plants are all affected by drought stress. Crop yield and quality eventually decline precipitously as a result. A phytohormone, melatonin, controls several plant functions during drought stress. However, the interactions between melatonin and other phytohormones, particularly how they control plant responses to drought stress, have not been clearly explored. This review explores the effects of melatonin and particular phytohormones on improving plant tolerance to drought stress. Specifically, the key melatonin roles in improved photosynthetic performance, better antioxidant activities, up-regulated gene expression, increased plant growth, and yield, etc., during drought stress have been elucidated in this review. Furthermore, this review explains how the intricate networks of melatonin-mediated crosstalk phytohormones, such as IAA, BR, ABA, GA, JA, CK, ET, SA, etc., enable horticultural plants to tolerate drought stress. Thus, this research provides a better understanding of the role of phytohormones, mainly melatonin, elucidates phytohormonal cross-talks in drought stress response, and future perspectives of phytohormonal contributions in plant improvements including engineering plants for better drought stress tolerance via targeting melatonin interactions.

通过褪黑激素介导的植物激素串扰增强园艺植物的抗旱能力
关键信息:褪黑激素和褪黑激素介导的植物激素串扰通过分子机制和生化相互作用在园艺植物中提高干旱胁迫耐受性方面发挥着多方面的作用。植物的物理、生理、生化和分子特性都会受到干旱胁迫的影响。作物的产量和质量最终会因此而急剧下降。褪黑激素是一种植物激素,在干旱胁迫期间可控制植物的多种功能。然而,褪黑激素与其他植物激素之间的相互作用,尤其是它们如何控制植物对干旱胁迫的反应,尚未得到明确的探讨。本综述探讨了褪黑激素和特定植物激素对提高植物抗干旱胁迫能力的影响。具体而言,本综述阐明了褪黑激素在干旱胁迫期间改善光合作用性能、提高抗氧化活性、上调基因表达、增加植物生长和产量等方面的关键作用。此外,本综述还解释了褪黑激素介导的错综复杂的串联植物激素网络(如 IAA、BR、ABA、GA、JA、CK、ET、SA 等)如何使园艺植物耐受干旱胁迫。因此,这项研究有助于更好地理解植物激素(主要是褪黑激素)的作用,阐明植物激素在干旱胁迫响应中的交叉作用,以及植物激素在植物改良中的未来前景,包括通过靶向褪黑激素的相互作用工程化植物以提高其干旱胁迫耐受性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Plant Cell Reports
Plant Cell Reports 生物-植物科学
CiteScore
10.80
自引率
1.60%
发文量
135
审稿时长
3.2 months
期刊介绍: Plant Cell Reports publishes original, peer-reviewed articles on new advances in all aspects of plant cell science, plant genetics and molecular biology. Papers selected for publication contribute significant new advances to clearly identified technological problems and/or biological questions. The articles will prove relevant beyond the narrow topic of interest to a readership with broad scientific background. The coverage includes such topics as: - genomics and genetics - metabolism - cell biology - abiotic and biotic stress - phytopathology - gene transfer and expression - molecular pharming - systems biology - nanobiotechnology - genome editing - phenomics and synthetic biology The journal also publishes opinion papers, review and focus articles on the latest developments and new advances in research and technology in plant molecular biology and biotechnology.
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