Preprint volume - SIBM

Pre-print Volume - Posters
Topic 2: MARINE ORGANISMS AND ECOSYSTEMS AS MODEL SYSTEMS
(0.5 pH units) was induced by 10s depolarization that activated the H + conductance.
These observations bear key similarities to results from animal cells in which H +
currents are known to mediate pH homeostasis and charge balance.
Conclusions – The calcifying coccolithophorid, Coccolithus pelagicus expresses an
animal-like H + -selective conductance which is activated by depolarization. As with
previously well-characterized animal H + channels, the properties of this H +
conductance appear ideally suited to mediating rapid, energy-efficient H + efflux during
metabolic acidosis.
References
TAYLOR A.R., RUSSELL M.A., HARPER G., COLLINS T., BROWNLEE C.B. (2007) - Dynamics
of the formation and secretion of hetercoccoliths by Coccolithus pelagicus (ssp. Braarudii).
Europ. J. Phycol., 42: 125-136.
41 st S.I.B.M. CONGRESS Rapallo (GE), 7-11 June 2010
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