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This study investigates the autotrophic nutritional strategy of Riftia pachyptila through enzyme activity in its trophosome tissue.

July 17, 1981Science

Chemoautotrophic Potential of the Hydrothermal Vent Tube Worm, Riftia pachyptila Jones (Vestimentifera)

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Experimental analysis of trophosome enzymes shows hydrothermal vent tube worm performs chemoautotrophy, suggesting unique nutrition.

This study investigates the autotrophic nutritional strategy of Riftia pachyptila through enzyme activity in its trophosome tissue.
Analyzed enzyme activity in trophosome tissue of Riftia pachyptila for ATP synthesis and carbon fixation pathways.
Compared enzyme presence in trophosome and muscle tissues.
High levels of ATP synthesis enzymes found in trophosome, indicating energy use from sulfur compounds.
Two key enzymes of the Calvin-Benson cycle present in trophosome, absent in muscle, supporting autotrophic nutrition.

Horst Felbeck (1981) studied this question.

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