PIP/PIPL: A Kind of Endogenous Plant Peptide Regulating Plant Stress Response and Development

doi:10.13560/j.cnki.biotech.bull.1985.2022-0816

Abstract

Abstract:

Plant endogenous polypeptides are composed of natural amino acids in different composition and arrangement from the precursor proteins cut into mature polypeptides, which play biological function in development and stress response after secreted outside the cells and recognized by their receptors. The plant endogenous polypeptide family PIP（PAMP induced secret peptide）/PIP-Like（PIPL）contains SGPS and GxGH motifs recognized by receptor like kinase 7（RLK7）, and plays important roles in pathogen resistance, virus resistance, salt resistance and development. Here, we review the signal transduction pathways of PIP/PIPL family polypeptides in the process of resistance to stress and development, discuss important unsolved scientific issues, and prospect possible applications, aiming to provide the references on further researches on PIP/PIPL.

Key words: PIP/PIPL, RLK7, signal transduction, stress, development

CUI Jun-mei, WEI Jia-ping, DONG Xiao-yun, WANG Ying, ZHENG Guo-qiang, LIU Zi-gang. PIP/PIPL: A Kind of Endogenous Plant Peptide Regulating Plant Stress Response and Development[J]. Biotechnology Bulletin, 2023, 39(3): 35-42.

Figures/Tables 5

Fig. 1 Sequence alignment and conserved motif of AtPIP/PIPL family proteins A: Alignment based on full-length sequence of AtPIP/PIPL precursor proteins. The conserved motifs were marked in red. B: Conserved sequence features of AtPIP/PIPL

Fig. 2 Protein structure and LRRs sequence information of RLK7 A: Structural information of RLK7 protein. B: LRRs motif information of RLK7

Fig. 3 RLK7 receptor complex

Fig. 4 Alignment analysis of kinase domain sequences of LRR XI subfamily members and other RLKs * indicates phosphorylation or kinase active sites

Fig. 5 Schematic diagram of PIP/PIPL signal transduction

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