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Article: Diversity and abundance of ammonia-oxidizing archaea and bacteria in polluted mangrove sediment

TitleDiversity and abundance of ammonia-oxidizing archaea and bacteria in polluted mangrove sediment
Authors
Issue Date2011
PublisherUrban und Fischer Verlag. The Journal's web site is located at http://www.elsevier.com/locate/sam
Citation
Systematic And Applied Microbiology, 2011, v. 34 n. 7, p. 513-523 How to Cite?
AbstractAmmonia oxidation by microorganisms is a critical process in the nitrogen cycle. Recent research results show that ammonia-oxidizing archaea (AOA) are both abundant and diverse in a range of ecosystems. In this study, we examined the abundance and diversity of AOA and ammonia-oxidizing beta-proteobacteria (AOB) in estuarine sediments in Hong Kong for two seasons using the ammonia monooxygenase A subunit gene (amoA) as molecular biomarker. Relationships between diversity and abundance of AOA and AOB and physicochemical parameters were also explored. AOB were more diverse but less abundant than AOA. A few phylogenetically distinct amoA gene clusters were evident for both AOA and AOB from the mangrove sediment. Pearson moment correlation analysis and canonical correspondence analysis (CCA) were used to explore physicochemical parameters potentially important to AOA and AOB. Metal concentrations were proposed to contribute potentially to the distributions of AOA while total phosphorus (TP) was correlated to the distributions of AOB. Quantitative PCR estimates indicated that AOA were more abundant than AOB in all samples, but the ratio of AOA/AOB (from 1.8 to 6.3) was smaller than most other studies by one to two orders. The abundance of AOA or AOB was correlated with pH and temperature while the AOA/AOB ratio was with the concentrations of ammonium. Several physicochemical factors, rather than any single one, affect the distribution patterns suggesting that a combination of factors is involved in shaping the dynamics of AOA and AOB in the mangrove ecosystem. © 2011 Elsevier GmbH.
Persistent Identifierhttp://hdl.handle.net/10722/165956
ISSN
2015 Impact Factor: 3.691
2015 SCImago Journal Rankings: 1.282
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCao, Hen_HK
dc.contributor.authorLi, Men_HK
dc.contributor.authorHong, Yen_HK
dc.contributor.authorGu, JDen_HK
dc.date.accessioned2012-09-20T08:25:48Z-
dc.date.available2012-09-20T08:25:48Z-
dc.date.issued2011en_HK
dc.identifier.citationSystematic And Applied Microbiology, 2011, v. 34 n. 7, p. 513-523en_HK
dc.identifier.issn0723-2020en_HK
dc.identifier.urihttp://hdl.handle.net/10722/165956-
dc.description.abstractAmmonia oxidation by microorganisms is a critical process in the nitrogen cycle. Recent research results show that ammonia-oxidizing archaea (AOA) are both abundant and diverse in a range of ecosystems. In this study, we examined the abundance and diversity of AOA and ammonia-oxidizing beta-proteobacteria (AOB) in estuarine sediments in Hong Kong for two seasons using the ammonia monooxygenase A subunit gene (amoA) as molecular biomarker. Relationships between diversity and abundance of AOA and AOB and physicochemical parameters were also explored. AOB were more diverse but less abundant than AOA. A few phylogenetically distinct amoA gene clusters were evident for both AOA and AOB from the mangrove sediment. Pearson moment correlation analysis and canonical correspondence analysis (CCA) were used to explore physicochemical parameters potentially important to AOA and AOB. Metal concentrations were proposed to contribute potentially to the distributions of AOA while total phosphorus (TP) was correlated to the distributions of AOB. Quantitative PCR estimates indicated that AOA were more abundant than AOB in all samples, but the ratio of AOA/AOB (from 1.8 to 6.3) was smaller than most other studies by one to two orders. The abundance of AOA or AOB was correlated with pH and temperature while the AOA/AOB ratio was with the concentrations of ammonium. Several physicochemical factors, rather than any single one, affect the distribution patterns suggesting that a combination of factors is involved in shaping the dynamics of AOA and AOB in the mangrove ecosystem. © 2011 Elsevier GmbH.en_HK
dc.languageengen_US
dc.publisherUrban und Fischer Verlag. The Journal's web site is located at http://www.elsevier.com/locate/samen_HK
dc.relation.ispartofSystematic and Applied Microbiologyen_HK
dc.subject.meshAmmonia - metabolismen_HK
dc.subject.meshArchaea - chemistry - classification - genetics - isolation & purificationen_HK
dc.subject.meshBetaproteobacteria - chemistry - classification - genetics - isolation & purificationen_HK
dc.subject.meshBiodiversityen_HK
dc.subject.meshBiological Markers - chemistryen_HK
dc.subject.meshBiotaen_HK
dc.subject.meshCloning, Molecularen_HK
dc.subject.meshEnvironmenten_HK
dc.subject.meshEnvironmental Microbiologyen_HK
dc.subject.meshEnvironmental Pollutionen_HK
dc.subject.meshGenes, Archaealen_HK
dc.subject.meshGenes, Bacterialen_HK
dc.subject.meshGeologic Sediments - analysis - chemistry - microbiologyen_HK
dc.subject.meshHong Kongen_HK
dc.subject.meshHydrogen-Ion Concentrationen_HK
dc.subject.meshMetals - chemistryen_HK
dc.subject.meshMultigene Familyen_HK
dc.subject.meshOxidation-Reductionen_HK
dc.subject.meshOxidoreductases - geneticsen_HK
dc.subject.meshPhosphorus - chemistryen_HK
dc.subject.meshPhylogenyen_HK
dc.subject.meshQuaternary Ammonium Compounds - chemistryen_HK
dc.subject.meshRhizophoraceaeen_HK
dc.subject.meshSeasonsen_HK
dc.subject.meshSpecies Specificityen_HK
dc.subject.meshTemperatureen_HK
dc.titleDiversity and abundance of ammonia-oxidizing archaea and bacteria in polluted mangrove sedimenten_HK
dc.typeArticleen_HK
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_HK
dc.identifier.authorityGu, JD=rp00701en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.syapm.2010.11.023en_HK
dc.identifier.pmid21665398-
dc.identifier.scopuseid_2-s2.0-79955513133en_HK
dc.identifier.hkuros209592en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79955513133&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume34en_HK
dc.identifier.issue7en_HK
dc.identifier.spage513en_HK
dc.identifier.epage523en_HK
dc.identifier.isiWOS:000297181700008-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridCao, H=37018049400en_HK
dc.identifier.scopusauthoridLi, M=35210975800en_HK
dc.identifier.scopusauthoridHong, Y=7403393244en_HK
dc.identifier.scopusauthoridGu, JD=7403129601en_HK

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