2023
DOI: 10.3389/fpls.2023.1077301
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RALF peptides modulate immune response in the moss Physcomitrium patens

Abstract: BackgroundRAPID ALKALINIZATION FACTOR (RALFs) are cysteine-rich peptides that regulate multiple physiological processes in plants. This peptide family has considerably expanded during land plant evolution, but the role of ancient RALFs in modulating stress responses is unknown.Results: Here, we used the moss Physcomitrium patens as a model to gain insight into the role of RALF peptides in the coordination of plant growth and stress response in non-vascular plants. The quantitative proteomic analysis revealed c… Show more

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Cited by 7 publications
(7 citation statements)
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“…We found both up-regulated and down-regulated RALF genes in pathogen-induced transcriptomes, which is consistent with previous results showing different roles of different members of RALFs in modulating plant immunity (Y.-H. L. Liu et al, 2024;Mamaeva et al, 2023;Stegmann et al, 2017).…”
Section: Discussionsupporting
confidence: 92%
“…We found both up-regulated and down-regulated RALF genes in pathogen-induced transcriptomes, which is consistent with previous results showing different roles of different members of RALFs in modulating plant immunity (Y.-H. L. Liu et al, 2024;Mamaeva et al, 2023;Stegmann et al, 2017).…”
Section: Discussionsupporting
confidence: 92%
“…RALFs represent a category of cysteine-rich peptides derived from precursor peptides through cleavage by the S1P protein [22]. They are characterized by having four cysteine amino acid residues and are implicated in a variety of biological processes, including root development, cell wall remodeling, maintaining pollen tube integrity, facilitating fertilization, mediating immune responses, and modulating plant responses to environmental stress [40][41][42][43][44]. Furthermore, the discovery of new cysteine-rich peptides continues to expand our understanding of plant biology.…”
Section: Cysteine-rich Peptidesmentioning
confidence: 99%
“…However, knockout lines of PpRALF2 and PpRALF3 show increased resistance to bacterial and various fungal pathogens. The PpRALF3 is more resistant to paraquat and NaCl, and has longer protonemal segments after stress treatment (Mamaeva, et al 2023 ), showing excellent agricultural application traits. Chenopodium quinoa is a halophyte suitable for planting in infertile soils.…”
Section: Functions Of Ralfsmentioning
confidence: 99%