Involvement of membrane potential in alkaline band formation by internodal cells of Chara corallina

Internodal cells of Chara corallina form alkaline bands on their surface upon illumination via photosynthesis. In the present study, the effect of KCl on alkaline band formation was analyzed. When the extracellular KCl concentration was increased, alkaline band formation was extensively inhibited. E...

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Bibliographic Details
Published in:Plant and cell physiology 2008-10, Vol.49 (10), p.1614-1620
Main Authors: Shimmen, T.(University of Hyogo, Kamigori (Japan)), Wakabayashi, A
Format: Article
Language:English
Subjects:
ALGAE
Alkaline band
CARBON DIOXIDE
Cell Membrane - drug effects
Cell Membrane - physiology
CELLS
Cells, Cultured
CELLULE
CELULAS
Chara
Chara - physiology
Chara corallina
CHLORURE DE POTASSIUM
CLORURO POTASICO
Cytoplasmic Streaming - drug effects
Depolarization
DIOXIDO DE CARBONO
DIOXYDE DE CARBONE
Electrophysiology
ENTRE NOEUD
FOTOSINTESIS
Hydrogen-Ion Concentration
INTERNODES
INTERNODIOS
Light
MEMBRANA
MEMBRANE
Membrane potential
Membrane Potentials
MEMBRANES
PHOTOSYNTHESE
PHOTOSYNTHESIS
POTASSIUM CHLORIDE
Potassium Chloride - pharmacology
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Description
Summary:Internodal cells of Chara corallina form alkaline bands on their surface upon illumination via photosynthesis. In the present study, the effect of KCl on alkaline band formation was analyzed. When the extracellular KCl concentration was increased, alkaline band formation was extensively inhibited. Electrophysiological analysis unequivocally showed the need for inner negative membrane potential for alkaline band formation.
ISSN:0032-0781
1471-9053
DOI:10.1093/pcp/pcn136