biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 28:141-144, 1986 | DOI: 10.1007/BF02885214

Photoinduced pH and membrane potential changes in the algaPithophora pragensis

D. Remiš1
1 Institute of Experimental Biology and Ecology, Slovak Academy of Sciences, Bratislava, Czechoslovakia

Glass microelectrodes filled with antimony were constructed, the electrical potential of which linearly depends on pH and is not influenced by light. Recording at the surface and in the cytosol (the latter corrected for the transient response of the membrane potential measured with a conventional electrode) showed both intra- and extracellular alkalization brought about by irradiating the algaPithophora pragensis. DIURON (DCMU, 3-(3,4-dichlorophenyl)-1,1-dimethylurea) in the concentration 10-4M almost entirely abolished the photoeffect.

Received: February 27, 1985; Accepted: June 26, 1985; Published: March 1, 1986  Show citation

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Remiš, D. (1986). Photoinduced pH and membrane potential changes in the algaPithophora pragensis. Biologia plantarum, 28(2), 141-144. doi: 10.1007/BF02885214
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