Skip to main content
. 2023 Nov 10;5(1):100746. doi: 10.1016/j.xplc.2023.100746

Figure 1.

Figure 1

Model representing the plant-aphid-virus interplay during airborne defense

(A) MeSA mediates plant AD against aphids and viruses. Aphid attack induces biosynthesis of SA in emitter plants and thus activates the NAC2–SAMT1 module to produce volatile MeSA. Receiver plants perceive and convert volatile MeSA into SA by the receptor SABP2, eliciting NAC2–SAMT1-mediated defense against aphids and viruses.

(B) Virus and aphid counterdefense against plant AD. Viruliferous aphids carry viruses that can secrete helicase-contained viral proteins (such as CMV1a), which alters the subcellular localization and leads to the degradation of NAC2, thus inhibiting the NAC2–SAMT1 module and promoting aphid infestation and virus transmission.