Structure and activity of lacustrine sediment bacteria involved in nutrient and iron cycles

Abstract Knowledge of the bacterial community structure in sediments is essential to better design restoration strategies for eutrophied lakes. In this regard, the aim of this study was to quantify the abundance and activity of bacteria involved in nutrient and iron cycling in sediments from four Az...

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Bibliographic Details
Published in:FEMS microbiology ecology 2011-09, Vol.77 (3), p.666-679
Main Authors: Martins, Gilberto, Terada, Akihiko, Ribeiro, Daniel C., Corral, Anuska M., Brito, António G., Smets, Barth F., Nogueira, Regina
Format: Article
Language:English
Subjects:
Ammonia
Ammonia - metabolism
Animal, plant and microbial ecology
Bacteria
Bacteria - classification
Bacteria - genetics
Bacteria - isolation & purification
Bacteria - metabolism
bacterial activity
bacterial community
Bacteriology
biogeochemical cycles
Biological and medical sciences
Community structure
Denitrification
Ecology
Eutrophic lakes
Eutrophication
Fresh Water - analysis
Fresh Water - microbiology
Fundamental and applied biological sciences. Psychology
Geologic Sediments - analysis
Geologic Sediments - microbiology
Iron
Iron - analysis
Iron - metabolism
Lake sediments
Mesotrophic lakes
Microbial ecology
Microbiology
Miscellaneous
Molecular Sequence Data
Nitrate reduction
Nitrates - metabolism
Nutrient cycles
Oxidation
Oxidation-Reduction
Phosphorus
Phosphorus - analysis
Phosphorus - metabolism
quantitative PCR
sediments
Various environments (extraatmospheric space, air, water)
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Summary:Abstract Knowledge of the bacterial community structure in sediments is essential to better design restoration strategies for eutrophied lakes. In this regard, the aim of this study was to quantify the abundance and activity of bacteria involved in nutrient and iron cycling in sediments from four Azorean lakes with distinct trophic states (Verde, Azul, Furnas and Fogo). Inferred from quantitative PCR, bacteria performing anaerobic ammonia oxidation were the most abundant in the eutrophic lakes Verde, Azul and Furnas (4.5–16.6%), followed by nitrifying bacteria (0.8–13.0%), denitrifying bacteria (DNB) (0.5–6.8%), iron-reducing bacteria (0.2–1.4%) and phosphorus-accumulating organisms (
ISSN:0168-6496
1574-6941
DOI:10.1111/j.1574-6941.2011.01145.x