Journal article
Effects of oxygenation on ammonia oxidation potential and microbial diversity in sediment from surface-flow wetland mesocosms
Bioresource technology, Vol.101(4), pp.1389-1392
2010
Handle:
https://hdl.handle.net/2376/101899
PMID: 19815408
Abstract
Addition of oxygen to surface-flow wetland mesocosms treating synthetic secondary effluent resulted in a significant increase in ammonia oxidation potential in sediment compared to non-oxygenated controls. Ammonia oxidation potential in oxygenated wetland sediment (1.2–3.5
mg
N
g
dw
−1
d
−1) was 2–3 orders of magnitude higher than those measured in sediment and soil systems reported in the literature. Phylogenic analysis of sediment from the two treatments revealed substantial differences in microbial diversity including the presence of ammonia-oxidizing bacteria (
Nitrosomonas oligotropha) and denitrifying bacteria only in oxygenated sediment, and an increase in the diversity of aerobic phototrophs and methanotrophs in control sediment. These observations supported the contention by
Palmer et al. (2009) that oxygenation ‘activated’ nitrifying bacteria in wetland sediment leading to high rates of biological ammonia oxidation.
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Details
- Title
- Effects of oxygenation on ammonia oxidation potential and microbial diversity in sediment from surface-flow wetland mesocosms
- Creators
- Jennifer G Allen - Washington State University, Department of Civil and Environmental Engineering, Ecological Engineering Group, Pullman, WA 99164, United StatesMarc W Beutel - Washington State University, Department of Civil and Environmental Engineering, Ecological Engineering Group, Pullman, WA 99164, United StatesDouglas R Call - Washington State University, Department of Veterinary Microbiology and Pathology, Pullman, WA 99164, United StatesAllison M Fischer - Washington State University, Department of Veterinary Microbiology and Pathology, Pullman, WA 99164, United States
- Publication Details
- Bioresource technology, Vol.101(4), pp.1389-1392
- Academic Unit
- Paul G. Allen School for Global Animal Health
- Publisher
- Elsevier Ltd
- Identifiers
- 99900546539501842
- Language
- English
- Resource Type
- Journal article