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Shear-enhanced dispersion of a wound substance as a candidate mechanism for variation potential transmission

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Abstract

A variation potential (VP) is an electrical signal unique to plants that occurs in response to wounding or flaming. The propagation mechanism itself, however, is known not to be electrical. Here we examine the hypothesis that VP transmission occurs via the transport of a chemical agent in the xylem.
We assume the electrical signal is generated locally by the activation of an ion channel at the plasma membrane of cells adjacent to the xylem.
We work on the assumption that the ion channels are triggered when the chemical concentration exceeds a threshold value. We use numerical computations to demonstrate the combined effect of advection and diffusion on chemical transport in a tube flow, and propose shear-enhanced

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Original languageEnglish
Article number1393
JournalFrontiers in Plant Science
Volume10
DOIs
Publication statusPublished - 15 Nov 2019
Peer-reviewedYes

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