Plant airborne defense against insects, viruses, and beyond

Trends Plant Sci. 2024 Mar;29(3):283-285. doi: 10.1016/j.tplants.2023.11.012. Epub 2023 Dec 18.

Abstract

Plants emit volatiles as signals to trigger broad physiological responses, including airborne defense (AD). Gong et al. (Nature 2023; 622: 139-145) recently reported the genetic framework of how plants use AD to combat aphids and viruses. The study elucidates the mutualistic relationships between aphids and the viruses they transmit, revealing the broad biological and ecological significance of AD.

Keywords: SA-NAC2-SAMT1-MeSA-SABP2-SA circuit; airborne defense (AD); aphid; insect; intra/interplant signaling; plant–plant communication (PPC); virus.

MeSH terms

  • Animals
  • Aphids* / physiology
  • Plant Diseases
  • Plant Viruses*
  • Plants / genetics
  • Viruses*