Extracellular liberation of dissolved carbohydrates by Cricosphaera carterae and Coccolithus huxleyi

Abstract

Excretion of dissolved carbohydrates (DCHO) by Cricosphaera carterae and Coccolithus huxleyi was studied under laboratory conditions for fifteen days. Production of DCHO varied from 0.5 to 2.5 mu g/ml in C. carterae and 0.4 to 3.5 mu g/ml in C. huxleyi. Accumulation of DCHO was maximum towards the declining phase of the cultures. The importance of organic material excreted by algae have been indicated