On the Pigment Absorbing at 750 mμ Occurring in Some Blue-Green Algae

Abstract
A new plant pigment with a long wavelength absorption maximum at 750 m/j, common to 2 blue-green algae, Synechococcus cedrorum, (Sauvg.) and Anacystis nidulans, has been isolated and partially purified. Attempts to deter-mine its in vivo function have been unsuccessful. Spectral similarities between the isolated pigment and bacterial pheophytin suggest a possible relationship of the blue-green algae to the photosynthetic bacteria.