zeaxanthin is minimally available, at the onset of illumination. The sensitivity of zeaxanthin 

 epoxidation to inhibitors of squalene epoxidation suggests some degree of sequence homology 

 between the corresponding enzymes. Analysis of the effects of these antimycotic agents on 

 diatoxanthin epoxidation in chromophyte algae is underway. 



Keywords: phytoplankton, chlorophyll, fluorescence, xanthophylls, enzyme sequencing 



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