Illumination/Darkness-Induced Changes in Leaf Surface Potential Linked With Kinetics of Ion Fluxes.

ABSTRACT: A highly reproducible plant electrical signal-light-induced bioelectrogenesis (LIB) was obtained by means of periodic illumination/darkness stimulation of broad bean (Vicia faba L.) leaves. By stimulating the same position of the same leaf with different concentrations of NaCl, we observed that the amplitude and waveform of the LIB was correlated with the intensity of stimulation. This method allowed us to link dynamic ion fluxes induced by periodic illumination/darkness to salt stress. The self-referencing ion electrode technique was used to explore the ionic mechanisms of the LIB. Fluxes of H⁺, Ca²⁺, K⁺, and Cl^- showed periodic changes under periodic illumination/darkness before and after 50 mM NaCl stimulation. Gray relational analysis

SUBMITTER: Li J 

PROVIDER: S-EPMC6854870 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature