PMID- 34303752 OWN - NLM STAT- MEDLINE DCOM- 20220225 LR - 20220225 IS - 1873-5169 (Electronic) IS - 0196-9781 (Linking) VI - 144 DP - 2021 Oct TI - Pathogen- and plant-derived peptides trigger plant immunity. PG - 170611 LID - S0196-9781(21)00119-4 [pii] LID - 10.1016/j.peptides.2021.170611 [doi] AB - Plants are constantly exposed to pathogens in their immediate environment. Plants sense the invasion of pathogens by recognizing the components including peptide fragments derived from pathogens, known as pathogen-associated molecular patterns (PAMPs). Plants also produce immunogenic peptides called phytocytokines that regulate immune responses. These molecules are recognized by pattern recognition receptors (PRRs) at plasma membrane. Activated PRRs induce a variety of immune responses including production of reactive oxygen species (ROS), induction of Ca(2+) influx and activation of mitogen activated protein kinases (MAPKs). Pattern-triggered immunity (PTI) wards off microbes and pests. In this review, we summarize recent our advances in understanding how the peptide fragments are generated and perceived by plant PRRs at cell surface, and the activated PRRs transduce the downstream immune signaling. CI - Copyright (c) 2021 Elsevier Inc. All rights reserved. FAU - Yamaguchi, Koji AU - Yamaguchi K AD - Department of Advanced Bioscience, Graduate School of Agriculture, Kindai University, Nakamachi, Nara 631-8505, Japan. FAU - Kawasaki, Tsutomu AU - Kawasaki T AD - Department of Advanced Bioscience, Graduate School of Agriculture, Kindai University, Nakamachi, Nara 631-8505, Japan; Agricultural Technology and Innovation Research Institute, Kindai University, Nakamachi, Nara 631-8505, Japan. Electronic address: t-kawasaki@nara.kindai.ac.jp. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210722 PL - United States TA - Peptides JT - Peptides JID - 8008690 RN - 0 (Pathogen-Associated Molecular Pattern Molecules) RN - 0 (Peptides) RN - 0 (Plant Proteins) RN - 0 (Reactive Oxygen Species) RN - 0 (Receptors, Pattern Recognition) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinases) SB - IM MH - Cell Membrane/metabolism MH - Host-Pathogen Interactions MH - Mitogen-Activated Protein Kinases/metabolism MH - Pathogen-Associated Molecular Pattern Molecules/immunology/metabolism MH - Peptides/*immunology/physiology MH - Plant Immunity/*physiology MH - Plant Proteins/immunology/metabolism MH - Reactive Oxygen Species MH - Receptors, Pattern Recognition/chemistry/*immunology/metabolism MH - Signal Transduction OTO - NOTNLM OT - DAMP OT - PAMP OT - Pattern-recognition receptor OT - Pattern-triggered immunity OT - Phytocytokine EDAT- 2021/07/26 06:00 MHDA- 2022/02/26 06:00 CRDT- 2021/07/25 20:30 PHST- 2021/03/16 00:00 [received] PHST- 2021/07/06 00:00 [revised] PHST- 2021/07/09 00:00 [accepted] PHST- 2021/07/26 06:00 [pubmed] PHST- 2022/02/26 06:00 [medline] PHST- 2021/07/25 20:30 [entrez] AID - S0196-9781(21)00119-4 [pii] AID - 10.1016/j.peptides.2021.170611 [doi] PST - ppublish SO - Peptides. 2021 Oct;144:170611. doi: 10.1016/j.peptides.2021.170611. Epub 2021 Jul 22.