Technical Comments

Response to Comment on "Arsenic(III) Fuels Anoxygenic Photosynthesis in Hot Spring Biofilms from Mono Lake, California"

Science  30 Jan 2009:
Vol. 323, Issue 5914, pp. 583
DOI: 10.1126/science.1166435

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Abstract

Schoepp-Cothenet et al. bring a welcome conceptual debate to the question of which came first in the course of planetary biological evolution, arsenite [As(III)] oxidation or dissimilatory arsenate [As(V)] reduction. However, we disagree with their reasoning and stand by our original conclusion.

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