Revisiting plant stress memory: mechanisms and contribution to stress adaptation

IF 3.4 3区 生物学 Q1 PLANT SCIENCES
Abu Bakar Siddique, Sumaya Parveen, Md. Zahidur Rahman, Jamilur Rahman
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引用次数: 0

Abstract

Highly repetitive adverse environmental conditions are encountered by plants multiple times during their lifecycle. These repetitive encounters with stresses provide plants an opportunity to remember and recall the experiences of past stress-associated responses, resulting in better adaptation towards those stresses. In general, this phenomenon is known as plant stress memory. According to our current understanding, epigenetic mechanisms play a major role in plants stress memory through DNA methylation, histone, and chromatin remodeling, and modulating non-coding RNAs. In addition, transcriptional, hormonal, and metabolic-based regulations of stress memory establishment also exist for various biotic and abiotic stresses. Plant memory can also be generated by priming the plants using various stressors that improve plants’ tolerance towards unfavorable conditions. Additionally, the application of priming agents has been demonstrated to successfully establish stress memory. However, the interconnection of all aspects of the underlying mechanisms of plant stress memory is not yet fully understood, which limits their proper utilization to improve the stress adaptations in plants. This review summarizes the recent understanding of plant stress memory and its potential applications in improving plant tolerance towards biotic and abiotic stresses.

Abstract Image

重新审视植物胁迫记忆:机制及其对胁迫适应的贡献
植物在其生命周期中会多次遇到高度重复的不利环境条件。这些重复性的胁迫使植物有机会记住和回忆过去与胁迫相关的反应经验,从而更好地适应这些胁迫。一般来说,这种现象被称为植物胁迫记忆。根据我们目前的理解,表观遗传机制通过 DNA 甲基化、组蛋白和染色质重塑以及非编码 RNA 的调节,在植物胁迫记忆中发挥着重要作用。此外,对于各种生物和非生物胁迫,也存在基于转录、激素和代谢的胁迫记忆建立调控机制。植物记忆也可以通过使用各种应激源来生成,从而提高植物对不利条件的耐受性。此外,应用启动剂已被证明能成功建立胁迫记忆。然而,人们对植物胁迫记忆内在机制各方面的相互联系还不完全了解,这限制了适当利用这些机制来改善植物的胁迫适应性。本综述总结了对植物胁迫记忆的最新认识及其在提高植物对生物和非生物胁迫的耐受性方面的潜在应用。
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来源期刊
CiteScore
7.10
自引率
0.00%
发文量
126
期刊介绍: Founded in 1995, Physiology and Molecular Biology of Plants (PMBP) is a peer reviewed monthly journal co-published by Springer Nature. It contains research and review articles, short communications, commentaries, book reviews etc., in all areas of functional plant biology including, but not limited to plant physiology, biochemistry, molecular genetics, molecular pathology, biophysics, cell and molecular biology, genetics, genomics and bioinformatics. Its integrated and interdisciplinary approach reflects the global growth trajectories in functional plant biology, attracting authors/editors/reviewers from over 98 countries.
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