Blood Function in the Hydrothermal Vent Vestimentiferan Tube Worm

Details Blood Function in the Hydrothermal Vent Vestimentiferan Tube Worm Blood Function in the Hydrothermal Vent Vestimentiferan Tube Worm

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981sci...213..342a&link_type=abstract

Science, Volume 213, Issue 4505, pp. 342-344

Computer Science

11

Scientific paper

Extracellular hemoglobin in the whole blood of Riftia pachyptila has a high oxygen affinity (P50 = 1.8 millimeters of mercury at 3circC), a moderate decrease in oxygen affinity at higher temperatures (P50 = 2.7 millimeters of mercury at 14circC), a small effect of carbon dioxide on oxygen affinity (Δ log P50/Δ pH = - 0.12), and a high oxygen carrying capacity (up to 11 milliliters of oxygen per 100 milliliters of blood). These characteristics are compatible with the high oxygen demand of chemoautotrophic metabolism in the variable vent environment.

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