[On the composition of fatty acids in Chlorella pyrenoidosa under the influence of dimethyl- and diethylaminoazobenzene (author's transl)].

The composition of bulk fatty acids in Chlorella pyrenoidosa under the influence of the carcinogenic dimethylaminoazobenzene and the non carcinogenic diethylaminoazobenzene was examined. In the presence of dimethylaminoazobenzene cultivated algae showed parallel to morphological changes distinct deviations in the composition of their fatty acids compared with the control. This especially concerns the unsaturated C18-fatty acids as the C16:0-, C16:2- and C16:3-acids respectively. By treatment of algae with diethylaminoazobenzene no morphological variations were observed and only little changes in composition of their fatty acids was demonstrated.