The Action Spectrum of Photosynthesis in Euglena Gracilis at Different Stages of Chloroplast Development

Abstract

A method for measuring the action spectra of photosynthetic oxygen evolution in unicellular algae is described. This involves embedding the cells in a thin strip of agarose gel. These gel strips can then be used for action spectrum measurements, with a bare platinum electrode of the Haxo and Blinks type in the same way as measure· ments are made with a piece of multicellular algal thallus.