Abstract
The aim of this study was to determine the fate of the benzo(a)pyrene (BaP) and its toxicity in Caulerpa racemosa. The following parameters were measured: effect on the growth, the bioaccumulation, the biodegradation and the effect on oxidant metabolism enzymes. Results demonstrate an important growth inhibition resulting in a reduction of stolon elongation and a significant decrease of fresh and dry matter production. Based on the measured distribution of BaP in the biomass of algae, the process of carcinogen removal from the solution proceeds relatively rapidly. In addition, the participation of some enzyme systems was tested as the effect of selective inhibitors on BaP consumption rate. The most important enzyme systems for detoxification of BaP are o-diphenol oxidase and catalase.