Department of Biological Sciences, Auburn University, Auburn, Alabama, USA.
Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama, USA.
Plant Cell Environ. 2023 Oct;46(10):2946-2963. doi: 10.1111/pce.14532. Epub 2023 Jan 23.
As sessile organisms, plants are constantly challenged by a dynamic growing environment. This includes fluctuations in temperature, water availability, light levels, and changes in atmospheric constituents such as carbon dioxide (CO ) and ozone (O ). In concert with changes in abiotic conditions, plants experience changes in biotic stress pressures, including plant pathogens and herbivores. Human-induced increases in atmospheric CO levels have led to alterations in plant growth environments that impact their productivity and nutritional quality. Additionally, it is predicted that climate change will alter the prevalence and virulence of plant pathogens, further challenging plant growth. A knowledge gap exists in the complex interplay between plant responses to biotic and abiotic stress conditions. Closing this gap is crucial for developing climate resilient crops in the future. Here, we briefly review the physiological responses of plants to elevated CO , temperature, tropospheric O , and drought conditions, as well as the interaction of these abiotic stress factors with plant pathogen pressure. Additionally, we describe the crosstalk and trade-offs involved in plant responses to both abiotic and biotic stress, and outline targets for future work to develop a more sustainable future food supply considering future climate change.
作为固着生物,植物不断受到动态生长环境的挑战。这包括温度、水分可用性、光照水平的波动,以及二氧化碳 (CO ) 和臭氧 (O ) 等大气成分的变化。与非生物条件的变化相配合,植物经历生物胁迫压力的变化,包括植物病原体和草食动物。人为增加大气 CO 水平导致植物生长环境发生变化,影响其生产力和营养质量。此外,预计气候变化将改变植物病原体的流行率和毒力,进一步挑战植物生长。在植物对生物和非生物胁迫条件的反应之间存在复杂的相互作用的知识空白。缩小这一差距对于未来开发具有气候适应能力的作物至关重要。在这里,我们简要回顾了植物对升高的 CO 、温度、对流层 O 和干旱条件的生理反应,以及这些非生物胁迫因素与植物病原体压力的相互作用。此外,我们描述了植物对生物和非生物胁迫的反应所涉及的串扰和权衡,并概述了未来工作的目标,以考虑未来气候变化,开发更可持续的未来粮食供应。