Abstract
1. 1. Metabolic transformation of [14C]glucose has been studied in the sea anemone Actinia equina subjected to submerged, anoxic and air exposure conditions. 2. 2. Glucose utilized seems to enter mainly into oxidative pathways in submerged animals, and approximately 70% appears as CO2 after 9 hr incubation. 3. 3. In contrast, air exposed animals show 80% incorporated into the soluble intermediates fraction, while virtually all glucose metabolized appears transformed in compounds of this fraction during anoxia. 4. 4. Main products accumulated in both anoxically maintained and air exposed animals are: lactate, serine and alanine. 5. 5. Synthesis of these compounds from glucose is interpreted as a mechanism helping to preserve cytoplasmic redox balance while contributing (by means of amino acids) to the osmotic adjustments associated with desiccation stress.
Published Version
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