Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Kórnik, Poland.
Int J Mol Sci. 2021 Jan 29;22(3):1357. doi: 10.3390/ijms22031357.
Environmental conditions are the basis of plant reproduction and are the critical factors controlling seed dormancy and germination. Global climate change is currently affecting environmental conditions and changing the reproduction of plants from seeds. Disturbances in germination will cause disturbances in the diversity of plant communities. Models developed for climate change scenarios show that some species will face a significant decrease in suitable habitat area. Dormancy is an adaptive mechanism that affects the probability of survival of a species. The ability of seeds of many plant species to survive until dormancy recedes and meet the requirements for germination is an adaptive strategy that can act as a buffer against the negative effects of environmental heterogeneity. The influence of temperature and humidity on seed dormancy status underlines the need to understand how changing environmental conditions will affect seed germination patterns. Knowledge of these processes is important for understanding plant evolution and adaptation to changes in the habitat. The network of genes controlling seed dormancy under the influence of environmental conditions is not fully characterized. Integrating research techniques from different disciplines of biology could aid understanding of the mechanisms of the processes controlling seed germination. Transcriptomics, proteomics, epigenetics, and other fields provide researchers with new opportunities to understand the many processes of plant life. This paper focuses on presenting the adaptation mechanism of seed dormancy and germination to the various environments, with emphasis on their prospective roles in adaptation to the changing climate.
环境条件是植物繁殖的基础,是控制种子休眠和萌发的关键因素。全球气候变化正在影响环境条件,并改变植物的种子繁殖方式。萌发的干扰会导致植物群落多样性的干扰。针对气候变化情景开发的模型表明,一些物种的适宜栖息地面积将大幅减少。休眠是一种影响物种生存概率的适应机制。许多植物物种的种子能够存活到休眠期结束并满足萌发要求的能力是一种适应策略,可以作为对环境异质性负面影响的缓冲。温度和湿度对种子休眠状态的影响强调了需要了解环境条件变化将如何影响种子萌发模式。了解这些过程对于理解植物进化和适应栖息地变化非常重要。受环境条件影响控制种子休眠的基因网络尚未完全表征。整合来自生物学不同学科的研究技术可以帮助理解控制种子萌发过程的机制。转录组学、蛋白质组学、表观遗传学等领域为研究人员提供了新的机会来理解植物生命的许多过程。本文重点介绍了种子休眠和萌发对各种环境的适应机制,强调了它们在适应气候变化方面的预期作用。