Changes in the extracellular ion concentration in the main pulvinus of Mimosa pudica during rapid movement and recovery

  title={Changes in the extracellular ion concentration in the main pulvinus of Mimosa pudica during rapid movement and recovery},
  author={Michikazu Samejima and Takao Sibaoka},
  journal={Plant and Cell Physiology},
Electrogenic Cl− Transporters in Biological Membranes
  • G. Gerencser
  • Biology
    Advances in Comparative and Environmental Physiology
  • 1994
1 Halorhodopsin: A Prokaryotic Light-Driven Active Chloride Transport System.- 1 Introduction.- 2 Anion Binding and the Retinal Chromophore as Reporter Group.- 3 The Photocycle.- 4 Light-Dependent
Mechanical Signaling in the Sensitive Plant Mimosa pudica L.
A model in which the action potential, followed by water flux (i.e., a loss of turgor pressure) in the pulvinar motor cells is a critical step to enable rapid movement is proposed.
Early membrane events induced by salicylic acid in motor cells of the Mimosa pudica pulvinus.
Salicylic acid (o-hydroxy benzoic acid) (SA) induced a rapid dose-dependent membrane hyperpolarization and a modification of the proton secretion of Mimosa pudica pulvinar cells at concentrations higher than 0.1mM and may be considered both a membrane signal molecule and a metabolic effector following its uptake in the cells.
Plants on the move: Towards common mechanisms governing mechanically-induced plant movements
This review focuses on thigmotropic and thigmonastic movements, both in vegetative and reproductive parts of higher plants, and Auxin has emerged as a key molecule that modulates proton extrusion and thus causing changes in cell turgor by enhancing the activity of H+ATPase in cell membranes.
Systemic signalling in barley through action potentials
Using apoplastic voltage- and ion selective microprobes, in barley leaves action potentials have been measured, it is suggested that they may serve as first and fast systemic signals following attack from pathogens.
Calcium ion and turgor regulation in plant cells
This article focuses on the turgor regulation controlled by Ca 2+ in algal ceils (Lamprothamnium and Pelvetia) in marine algal cells, which are relatively large so that ion fluxes, membrane potentials and membrane conductances are easy to measure.
Involvement of receptor potentials and action potentials in mechano-perception in plants
The mechanisms of responses to mechanical stimuli of these plants are considered and progress in studies of the receptor potential in characean cells is discussed.
Spontaneous rapid leaf movements and action potentials in Mimosa pudica L.
There was a delay between the appearance of SAP and RLM, indicating that SAPs may trigger the rapid leaf movements, and spontaneous action potentials with amplitudes of 3-100 mV and half-time of approx.