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Revisiting plant stress memory: mechanisms and contribution to stress adaptation

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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.

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Abbreviations

AA:

Amino acids

ABA:

Abscisic acid

APX:

Ascorbate peroxidase

BABA:

β-Aminobutyric acid

bHLH:

Basic helix-loop-helix

CAT:

Catalase

CBF:

CCAAT motif-binding factor

CDPK:

Calcium-dependent protein kinases

DHAR:

Dehydroascorbate reductase

DREB:

Dehydration responsive element binding

FLC:

Flower locus C

GPX:

Glutathione peroxidase

GR:

Glutathione reductase

GSH:

Glutathione

HSF:

Heat shock factor

HSP:

Heat shock protein

ISM:

Intergenerational stress memory

MAPK:

Mitogen activated protein kinase

miRNAs:

MicroRNAs

ncRNAs:

Non-coding RNAs

PEG:

Polyethylene glycol

PR:

Pathogenesis related protein

PSM:

Plant stress memory

SA:

Salicylic acid

PP2C:

Plant protein phosphatase 2C

siRNAs:

Small interfering RNAs

SOD:

Superoxide dismutase

SSM:

Somatic stress memory

TFs:

Transcription factors

TSM:

Transgenerational stress memory

UV:

Ultraviolet

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Acknowledgements

We thank Prof. Abidur Rahman of Iwate University, Japan for critical reading and constructive suggestions to improve the manuscript

Funding

The research was funded by Bangladesh Academy of Sciences (BAS USDA SAU CR-02) project.

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Authors

Contributions

The idea was conceived by JR and outline was prepared by JR and ABS. The manuscript was written by ABS, SP, MZR and JR. Final drafts of the manuscript were read and approved by all authors.

Corresponding author

Correspondence to Jamilur Rahman.

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All the authors declare no conflicts of interest regarding this study.

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Siddique, A.B., Parveen, S., Rahman, M.Z. et al. Revisiting plant stress memory: mechanisms and contribution to stress adaptation. Physiol Mol Biol Plants 30, 349–367 (2024). https://doi.org/10.1007/s12298-024-01422-z

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  • DOI: https://doi.org/10.1007/s12298-024-01422-z

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