Vacuoles from Sugarcane Suspension Cultures 1: III. PROTONMOTIVE POTENTIAL DIFFERENCE
AUTOR(ES)
Komor, Ewald
RESUMO
The electrochemical proton gradient across the tonoplast of isolated (Saccharum sp.) vacuoles and vacuoles in situ was measured. The isolated vacuoles show no significant protonmotive potential difference, the pH gradient of 0.8 (inside acid) was balanced by a membrane potential of about −80 mv (inside negative). From pH and uncoupler insensitivity and K+ sensitivity, it was concluded that the experimentally caused K+ gradient created the electric potential.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=426410Documentos Relacionados
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