Reduction of Phenolindo-2,6-dichlorophenol in Dark and Light by the Blue-Green Alga, Anabaena variabilis

Abstract

The reduction of pheno-lindo-2,6-dichlorophenol (PICP) by the glue-green alga Anabaena variabilis was examined in the dark and in the light. The two reductions differed in order with respect to PICP, in pH optimum, response to cyanide and iodoacetate, and in sensitivity to starvation and lysozyme treatment of the organism. The reduction in the dark was suppressed at light intensities of 300 ft.-candles. These results are discussed in relation to work on the photo-inhibition of respiratory processes in this and other micro-organisms.