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Article: Seasonal dynamics of ammonia/ammonium-oxidizing prokaryotes in oxic and anoxic wetland sediments of subtropical coastal mangrove

TitleSeasonal dynamics of ammonia/ammonium-oxidizing prokaryotes in oxic and anoxic wetland sediments of subtropical coastal mangrove
Authors
KeywordsAmoa
Anammox Bacteria
Aoa
Aob
Mangrove
Seasonal Dynamics
Sediment Type
Issue Date2013
PublisherSpringer. The Journal's web site is located at http://link.springer.de/link/service/journals/00253/index.htm
Citation
Applied Microbiology And Biotechnology, 2013, v. 97, p. 7919−7934 How to Cite?
AbstractMangrove wetlands are an important ecosystem in tropical and subtropical regions, and the sediments may contain both oxic and anoxic zones. In this study, ammonia/ammonium-oxidizing prokaryotes (AOPs) in yellow and black sediments with vegetation and non-vegetated sediments in a mangrove wetland of subtropical Hong Kong were investigated in winter and summer. The phylogenetic diversity of anammox bacterial 16S rRNA genes and archaeal and bacterial amoA genes (encoding ammonia monooxygenase alpha-subunit) were analyzed using PCR amplification and denaturing gradient gel electrophoresis to reveal their community structures. Quantitative PCR was also used to detect their gene abundances. The results showed that seasonality had little effect, but sediment type had a noticeable influence on the community structures and abundances of anammox bacteria. For ammonia-oxidizing archaea (AOA), seasonality had a small effect on their community structures, but a significant effect on their abundances: AOA amoA genes were significantly higher in winter than in summer. In winter, the vegetated yellow sediments had lower AOA amoA genes than the other types of sediments, but in summer, the vegetated yellow sediments had higher AOA amoA genes than the other types of sediments. Sediment type had no apparent effect on AOA community structures in winter. In summer, however, the vegetated yellow sediments showed obviously different AOA community structures from the other types of sediments. For ammonia-oxidizing bacteria (AOB), seasonality had a significant effect on their community structures and abundances: AOB amoA genes in winter were apparently higher than in summer, and AOB community structures were different between winter and summer. Sediment type had little effect on AOB community structures, but had a noticeable effect on the abundances: AOB amoA genes of the vegetated yellow sediments were obviously lower than the black ones in both seasons. This study has demonstrated that seasonality and sediment type affected community structures and abundances of AOPs differently in oxic and anoxic sediments of the mangrove wetland. © 2012 The Author(s).
Persistent Identifierhttp://hdl.handle.net/10722/179326
ISSN
2015 Impact Factor: 3.376
2015 SCImago Journal Rankings: 1.262
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, YFen_US
dc.contributor.authorFeng, YYen_US
dc.contributor.authorMa, Xen_US
dc.contributor.authorGu, JDen_US
dc.date.accessioned2012-12-19T09:54:13Z-
dc.date.available2012-12-19T09:54:13Z-
dc.date.issued2013en_US
dc.identifier.citationApplied Microbiology And Biotechnology, 2013, v. 97, p. 7919−7934en_US
dc.identifier.issn0175-7598en_US
dc.identifier.urihttp://hdl.handle.net/10722/179326-
dc.description.abstractMangrove wetlands are an important ecosystem in tropical and subtropical regions, and the sediments may contain both oxic and anoxic zones. In this study, ammonia/ammonium-oxidizing prokaryotes (AOPs) in yellow and black sediments with vegetation and non-vegetated sediments in a mangrove wetland of subtropical Hong Kong were investigated in winter and summer. The phylogenetic diversity of anammox bacterial 16S rRNA genes and archaeal and bacterial amoA genes (encoding ammonia monooxygenase alpha-subunit) were analyzed using PCR amplification and denaturing gradient gel electrophoresis to reveal their community structures. Quantitative PCR was also used to detect their gene abundances. The results showed that seasonality had little effect, but sediment type had a noticeable influence on the community structures and abundances of anammox bacteria. For ammonia-oxidizing archaea (AOA), seasonality had a small effect on their community structures, but a significant effect on their abundances: AOA amoA genes were significantly higher in winter than in summer. In winter, the vegetated yellow sediments had lower AOA amoA genes than the other types of sediments, but in summer, the vegetated yellow sediments had higher AOA amoA genes than the other types of sediments. Sediment type had no apparent effect on AOA community structures in winter. In summer, however, the vegetated yellow sediments showed obviously different AOA community structures from the other types of sediments. For ammonia-oxidizing bacteria (AOB), seasonality had a significant effect on their community structures and abundances: AOB amoA genes in winter were apparently higher than in summer, and AOB community structures were different between winter and summer. Sediment type had little effect on AOB community structures, but had a noticeable effect on the abundances: AOB amoA genes of the vegetated yellow sediments were obviously lower than the black ones in both seasons. This study has demonstrated that seasonality and sediment type affected community structures and abundances of AOPs differently in oxic and anoxic sediments of the mangrove wetland. © 2012 The Author(s).en_US
dc.languageengen_US
dc.publisherSpringer. The Journal's web site is located at http://link.springer.de/link/service/journals/00253/index.htmen_US
dc.relation.ispartofApplied Microbiology and Biotechnologyen_US
dc.subjectAmoaen_US
dc.subjectAnammox Bacteriaen_US
dc.subjectAoaen_US
dc.subjectAoben_US
dc.subjectMangroveen_US
dc.subjectSeasonal Dynamicsen_US
dc.subjectSediment Typeen_US
dc.titleSeasonal dynamics of ammonia/ammonium-oxidizing prokaryotes in oxic and anoxic wetland sediments of subtropical coastal mangroveen_US
dc.typeArticleen_US
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_US
dc.identifier.authorityGu, JD=rp00701en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1007/s00253-012-4510-5en_US
dc.identifier.pmid23099914-
dc.identifier.scopuseid_2-s2.0-84892369224en_US
dc.identifier.hkuros224975-
dc.identifier.volume97-
dc.identifier.spage7919en_US
dc.identifier.epage7934en_US
dc.identifier.isiWOS:000323281900036-
dc.publisher.placeGermanyen_US
dc.identifier.scopusauthoridWang, YF=55373182800en_US
dc.identifier.scopusauthoridFeng, YY=55318981900en_US
dc.identifier.scopusauthoridMa, X=55262166600en_US
dc.identifier.scopusauthoridGu, JD=7403129601en_US
dc.identifier.citeulike11617317-

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