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Sequestration of Exogenous Volatiles by Plant Cuticular Waxes as a Mechanism of Passive Associational Resistance: A Proof of Concept

2020; Frontiers Media; Volume: 11; Linguagem: Inglês

10.3389/fpls.2020.00121

1664-462X

Xicotencatl Camacho-Coronel, Jorge Molina‐Torres, Martin Heil,

Plant biochemistry and biosynthesis

Numerous plant-derived volatile organic compounds (VOCs) induce the expression of resistance-related genes and thereby cause an "associational resistance" in neighbouring plants. However, VOCs can also be sequestered by plant cuticular waxes. In case that they maintain their biological activity, such sequestered VOCs could generate a "passive" associational resistance that is independent of any gene expression in the receiver. As a proof of concept, we used major components of the cuticular wax layers of the tree,