PMID- 16958766
OWN - NLM
STAT- MEDLINE
DCOM- 20061019
LR  - 20131121
IS  - 1462-2912 (Print)
IS  - 1462-2912 (Linking)
VI  - 8
IP  - 10
DP  - 2006 Oct
TI  - Anaerobic ammonium oxidation in a tropical freshwater system (Lake Tanganyika).
PG  - 1857-63
AB  - Here we provide the first direct evidence for the anammox process (anaerobic 
      ammonium oxidation) in a lacustrine system, Lake Tanganyika, the second largest 
      lake in the world. Incubations with (15)N labelled nitrate showed that anammox 
      occurred in the suboxic water layer at 100-110 m water depth. Anammox rates up to 
      10 nM N(2) h(-1) are comparable to those reported for the marine water column. Up 
      to approximately 13% of produced N(2) could be attributed to the anammox process 
      whereas the remainder was related to denitrification. Typical lipid biomarkers 
      characteristic of anammox bacteria were found in filtered water from the depths 
      where anammox occurred, thus supporting the presence of anammox bacteria. Further 
      evidence is provided by fluorescence in situ hybridization (FISH), revealing up 
      to 13 000 anammox bacteria cells per ml or 1.4% of all DAPI 
      (4'-6-Diamidino-2-phenylindole)-stained cells. Phylogenetic analyses of partial 
      16S rRNA genes indicated the presence of sequences most closely related to the 
      known anammox bacterium Candidatus "Scalindua brodae" (95.7% similarity). Using 
      the incubation results, a total loss of 0.2 Tg N(2) per year linked to anammox 
      was estimated for the Northern basin of Lake Tanganyika.
FAU - Schubert, Carsten J
AU  - Schubert CJ
AD  - Surface Waters Department, Swiss Federal Institute of Aquatic Science and 
      Technology (Eawag), Seestrasse 79, CH-6047 Kastanienbaum, Switzerland. 
      carsten.schubert@eawag.ch
FAU - Durisch-Kaiser, Edith
AU  - Durisch-Kaiser E
FAU - Wehrli, Bernhard
AU  - Wehrli B
FAU - Thamdrup, Bo
AU  - Thamdrup B
FAU - Lam, Phyllis
AU  - Lam P
FAU - Kuypers, Marcel M M
AU  - Kuypers MM
LA  - eng
SI  - GENBANK/DQ444362
SI  - GENBANK/DQ444363
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SI  - GENBANK/DQ444455
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Environ Microbiol
JT  - Environmental microbiology
JID - 100883692
RN  - 0 (DNA, Bacterial)
RN  - 0 (Lipids)
RN  - 0 (Quaternary Ammonium Compounds)
RN  - 0 (RNA, Ribosomal, 16S)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Anaerobiosis
MH  - Bacteria, Anaerobic/genetics/*metabolism
MH  - Base Sequence
MH  - DNA, Bacterial/chemistry/genetics
MH  - Fresh Water
MH  - In Situ Hybridization, Fluorescence
MH  - Lipids/analysis
MH  - Molecular Sequence Data
MH  - Nitrogen/metabolism
MH  - Oxidation-Reduction
MH  - Phylogeny
MH  - Polymerase Chain Reaction
MH  - Quaternary Ammonium Compounds/*metabolism
MH  - RNA, Ribosomal, 16S/chemistry/genetics
MH  - Sequence Analysis, DNA
MH  - Tanzania
MH  - Tropical Climate
MH  - *Water Microbiology
EDAT- 2006/09/09 09:00
MHDA- 2006/10/20 09:00
CRDT- 2006/09/09 09:00
PHST- 2006/09/09 09:00 [pubmed]
PHST- 2006/10/20 09:00 [medline]
PHST- 2006/09/09 09:00 [entrez]
AID - EMI1074 [pii]
AID - 10.1111/j.1462-2920.2006.01074.x [doi]
PST - ppublish
SO  - Environ Microbiol. 2006 Oct;8(10):1857-63. doi: 10.1111/j.1462-2920.2006.01074.x.