John F. Stolz Michael E. Madigan James T. Hollibaugh Thomas R Kulp Shelley E. Hoeft J. Fisher Laurence G. Miller Charles W. Culbertson M. Asao Ronald S. Oremland 2009 <div>Schoepp-Cothenet<span>&nbsp;</span><i>et al</i>. 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.</div> application/pdf 10.1126/science.1166435 en Science Response to comment on "Arsenic(III) Fuels Anoxygenic Photosynthesis in Hot Spring Biofilms from Mono Lake, California" article