Abstract
Upon initiation of lipoxygenase reactions one group of freshwater diatoms synthesized unsaturated acyclic and alicyclic hydrocarbons (ectocarpene, dictyopterenes and fucoserratene); another group synthesized polyunsaturated aldehydes. Among others (2 E),(4 Z),(7 Z)-decatrienal is described as a new lipoxygenase cleavage product in Melosira. The patterns of the volatile organic compounds were typical for particular species of diatoms, indicating different specificities of the enzymes involved. The formation of unsaturated hydrocarbons and aldehydes was fully inhibited by strict exclusion of dioxygen, but could be regained by subsequent addition of dioxygen. The application of radical scavengers or chelating agents resulted in a high percentage inhibition of hydrocarbon and aldehyde formation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
