Chinese Bulletin of Botany ›› 2020, Vol. 55 ›› Issue (3): 329-339.DOI: 10.11983/CBB19139

• SPECIAL TOPICS • Previous Articles     Next Articles

Intracellular Trafficking in Pattern Recognition Receptor-triggered Plant Immunity

Yaning Cui,Hongping Qian,Yanxia Zhao,Xiaojuan Li()   

  1. Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Science and Technology, Beijing Forestry University, Beijing 100083, China
  • Received:2019-07-28 Accepted:2020-02-26 Online:2020-05-01 Published:2020-07-06
  • Contact: Xiaojuan Li

Abstract: Plants initially sense microbes via perception of pathogen associated molecular patterns (PAMPs) by pattern-recognition receptors (PRRs) located on the cell surface. This recognition is referred to as PAMP-triggered immunity (PTI). In order to ensure their physiological and cellular functions, PRRs must be properly conveyed from their site of synthesis, i.e., the endoplasmic reticulum, to their final destination, the plasma membrane (PM), through the secretory pathway. PRRs also rely on recycling and/or degradation, two processes that are initiated by endocytosis. Intracellular trafficking serves to terminate signaling through degradation, sustains signaling through recycling, or relays signaling inside the cell through the formation of signaling endosomes. In this review, we summarize the current knowledge of plant PRRs and their ligands, illustrating that intracellular trafficking plays an important role in plant immunity.

Key words: pattern recognition receptors (PRRs), pathogen-associated molecular patterns (PAMPs), intracellular traffic-king, PRR-triggered immunity (PTI), plant immunity