Effect of artificial electron receptors on the non-linearity of the current-induced voltage response in the membrane of the green alga Hydrodictyon reticulatum

Autor:	R. Metlička
Rok vydání:	1993
Předmět:	Membrane potential Photosystem II biology Potassium ATPase Biophysics chemistry.chemical_element Biological membrane Potassium channel chemistry.chemical_compound Membrane chemistry Biochemistry Electrochemistry biology.protein Ferricyanide Physical and Theoretical Chemistry
Zdroj:	Bioelectrochemistry and Bioenergetics. 32:45-55
ISSN:	0302-4598
DOI:	10.1016/0302-4598(93)80019-q
Popis:	The non-linear character of the voltage response of the intracellular electrical potential of the alga Hydrodictyon reticulatum to current injection was studied using a microelectrode technique. The phenomenon was strongly affected by the potassium ion concentration in the medium and by artificial electron acceptors (ferricyanide and the tetrathialfulvalene cation), by inhibitors of photosystem II and membrane H + -ATPase, by ethanol and by barium ions. Consideration of all the results suggests that the membrane potential dependence of potassium channels as well as changes in the ion concentration gradients in unstirred layers are responsible for the non-linear response phenomenon.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2cef9588c4a5f5ef7fe3ae70f57c4da6 https://doi.org/10.1016/0302-4598(93)80019-q Zobrazit plný text záznamu