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Nature. 2006 Apr 6;440(7085):790-4.

Deciphering the evolution and metabolism of an anammox bacterium from a community genome.

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  • 1Department of Microbiology, IWWR, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands.

Abstract

Anaerobic ammonium oxidation (anammox) has become a main focus in oceanography and wastewater treatment. It is also the nitrogen cycle's major remaining biochemical enigma. Among its features, the occurrence of hydrazine as a free intermediate of catabolism, the biosynthesis of ladderane lipids and the role of cytoplasm differentiation are unique in biology. Here we use environmental genomics--the reconstruction of genomic data directly from the environment--to assemble the genome of the uncultured anammox bacterium Kuenenia stuttgartiensis from a complex bioreactor community. The genome data illuminate the evolutionary history of the Planctomycetes and allow us to expose the genetic blueprint of the organism's special properties. Most significantly, we identified candidate genes responsible for ladderane biosynthesis and biological hydrazine metabolism, and discovered unexpected metabolic versatility.

PMID:
16598256
[PubMed - indexed for MEDLINE]
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