Photorespiration and plant immunity: Interactions and implications under a changing climate

IF 5.7 2区 生物学 Q1 PLANT SCIENCES
Jingying Chen , Yafei Yan , Shuangchen Chen, Golam Jalal Ahammed
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Abstract

Climate change has profound impacts on plant growth, productivity, and immunity. Photosynthesis, a key biological process that sequesters atmospheric CO2, plays a crucial role in mitigating the effects of climate change. However, photorespiration, a process that consumes O2 instead of CO2 and is metabolically linked with photosynthesis, is often viewed as a wasteful process that reduces photosynthetic efficiency by nearly 48 % in C3 plants. This reduction has a significant impact on crop yield, given the direct contribution of photosynthesis to biomass accumulation. Over the years, numerous efforts have been made to rectify this perceived metabolic flaw to enhance photosynthetic efficiency. Interestingly, recent studies have unveiled a role for photorespiration in plant immunity, which can vary from positive to negative depending on the plant-pathosystem. A key challenge lies in enhancing photosynthetic efficiency by modulating photorespiration without compromising plant immunity. This review discusses the role of photorespiration in plant immunity under current and future climatic conditions. We explore how photorespiration and photorespiratory pathways influence plant defense, how alterations in photorespiration affect hormonal pathways and subsequently plant immunity, and how manipulations of photorespiration may impact plant growth and defense under elevated CO2 conditions. We highlight the roles of plant hormones such as salicylates and jasmonates as well as reactive oxygen species, in photorespiration-related plant immunity. We conclude that unraveling the underlying mechanisms of photorespiration-involved plant responses to various pathogens provides comprehensive insights for the management, breeding, and genetic improvement of crops, thereby enhancing their resilience to future climate change.
光呼吸和植物免疫:气候变化下的相互作用和影响。
气候变化对植物生长、生产力和免疫力有着深远的影响。光合作用是隔绝大气中二氧化碳的关键生物过程,在减缓气候变化的影响方面起着至关重要的作用。然而,光呼吸是一种消耗氧气而不是二氧化碳的过程,并且在代谢过程中与光合作用有关,通常被认为是一种浪费的过程,它使C3植物的光合效率降低了近48%。考虑到光合作用对生物量积累的直接贡献,这种减少对作物产量有重大影响。多年来,人们做出了许多努力来纠正这种被认为的代谢缺陷,以提高光合效率。有趣的是,最近的研究揭示了光呼吸在植物免疫中的作用,根据植物的病理系统,它可以从积极到消极地变化。一个关键的挑战在于通过调节光呼吸而不损害植物免疫来提高光合效率。本文综述了光呼吸在当前和未来气候条件下植物免疫中的作用。我们探讨了光呼吸和光呼吸途径如何影响植物的防御,光呼吸的改变如何影响激素途径和随后的植物免疫,以及在高二氧化碳条件下光呼吸的操纵如何影响植物的生长和防御。我们强调植物激素如水杨酸盐和茉莉酸盐以及活性氧在光呼吸相关植物免疫中的作用。我们的结论是,揭示与光呼吸有关的植物对各种病原体反应的潜在机制,为作物的管理、育种和遗传改良提供了全面的见解,从而增强了它们对未来气候变化的适应能力。
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来源期刊
Plant Physiology and Biochemistry
Plant Physiology and Biochemistry 生物-植物科学
CiteScore
11.10
自引率
3.10%
发文量
410
审稿时长
33 days
期刊介绍: Plant Physiology and Biochemistry publishes original theoretical, experimental and technical contributions in the various fields of plant physiology (biochemistry, physiology, structure, genetics, plant-microbe interactions, etc.) at diverse levels of integration (molecular, subcellular, cellular, organ, whole plant, environmental). Opinions expressed in the journal are the sole responsibility of the authors and publication does not imply the editors'' agreement. Manuscripts describing molecular-genetic and/or gene expression data that are not integrated with biochemical analysis and/or actual measurements of plant physiological processes are not suitable for PPB. Also "Omics" studies (transcriptomics, proteomics, metabolomics, etc.) reporting descriptive analysis without an element of functional validation assays, will not be considered. Similarly, applied agronomic or phytochemical studies that generate no new, fundamental insights in plant physiological and/or biochemical processes are not suitable for publication in PPB. Plant Physiology and Biochemistry publishes several types of articles: Reviews, Papers and Short Papers. Articles for Reviews are either invited by the editor or proposed by the authors for the editor''s prior agreement. Reviews should not exceed 40 typewritten pages and Short Papers no more than approximately 8 typewritten pages. The fundamental character of Plant Physiology and Biochemistry remains that of a journal for original results.
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