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Published on: August 25, 2018
Sugar codes for plant fitness: arabinosylation in small peptide signaling
Yuan Yu1, Jinfang Chu2, Suwei Dong3
1State Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; CAS-JIC Centre of Excellence for Plant and Microbial Science (CEPAMS), Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
Abstract:
Arabinosylation, a critical post-translational modification (PTM) ubiquitous in plants, has received insufficient scientific attention relative to its biological significance. While small secreted peptides (SSPs) are crucial signaling molecules that orchestrate plant growth, stress adaptation, and host-microbe communication, emerging evidence positions arabinosylation as a key regulatory mechanism modulating SSP functionality. In this review we synthesize current knowledge on arabinosylated SSPs, emphasizing their regulatory roles in developmental programming and reprogramming, stress resilience, and symbiotic interactions. We discuss biochemical mechanisms through which arabinosylation enhances peptide biological activity or stability, including receptor interaction modulation, structural stabilization, and proteolytic resistance. We also evaluate future opportunities for leveraging arabinosylation engineering in developing climate-smart crops through targeted arabinosylated SSPs.
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