Current understanding of the interplays between host hormones and plant viral infections

PLoS Pathog. 2021 Feb 25;17(2):e1009242. doi: 10.1371/journal.ppat.1009242. eCollection 2021 Feb.

Abstract

Phytohormones mediate plant development and responses to stresses caused by biotic agents or abiotic factors. The functions of phytohormones in responses to viral infection have been intensively studied, and the emerging picture of complex mechanisms provides insights into the roles that phytohormones play in defense regulation as a whole. These hormone signaling pathways are not simple linear or isolated cascades, but exhibit crosstalk with each other. Here, we summarized the current understanding of recent advances for the classical defense hormones salicylic acid (SA), jasmonic acid (JA), and ethylene (ET) and also the roles of abscisic acid (ABA), auxin, gibberellic acid (GA), cytokinins (CKs), and brassinosteroids (BRs) in modulating plant-virus interactions.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Host-Pathogen Interactions*
  • Plant Diseases / immunology*
  • Plant Diseases / virology
  • Plant Growth Regulators / metabolism*
  • Plant Immunity*
  • Plant Viruses / physiology*
  • Plants / immunology*
  • Plants / metabolism
  • Plants / virology
  • Virus Diseases / immunology*
  • Virus Diseases / metabolism
  • Virus Diseases / virology

Substances

  • Plant Growth Regulators

Grants and funding

This work was supported by Transgenic Research Program (2016ZX08010-001) to YL and National Natural Science Foundation of China (NSFC, grant number 31871934). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.