Comment on "Arsenic (III) fuels anoxygenic photosynthesis in hot spring biofilms from Mono Lake, California".
editorial · Level V
Where this comes from
- Record sourced from PubMed, PMID 19179513.
- Also identified by DOI 10.1126/science.1164967.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Kulp et al. (Reports, 15 August 2008, p. 967) described a bacterium able to photosynthetically oxidize arsenite [As(III)] via arsenate [As(V)] reductase functioning in reverse. Based on their phylogenetic analysis of As(V) reductase, they proposed that this enzyme was responsible for the anaerobic oxidation of As(III) in the Archean. We challenge this proposition based on paleogeochemical, bioenergetic, and phylogenetic arguments.
Medical subject headings
- Arsenate Reductases
- Arsenites
- Bacteria
- Biofilms
- Hot Springs
- Photosynthesis