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- Publisher Website: 10.1016/j.chemosphere.2011.01.042
- Scopus: eid_2-s2.0-79951852805
- PMID: 21316076
- WOS: WOS:000288734900001
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Article: The effect of nitrate concentration on sulfide-driven autotrophic denitrification in marine sediment
Title | The effect of nitrate concentration on sulfide-driven autotrophic denitrification in marine sediment | ||||
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Authors | |||||
Keywords | Autotrophic denitrification Nitrate concentration Sediment Sulfurimonas denitrificans | ||||
Issue Date | 2011 | ||||
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere | ||||
Citation | Chemosphere, 2011, v. 83 n. 1, p. 1-6 How to Cite? | ||||
Abstract | The effect of nitrate concentration on denitrification rate, microbial community and byproduct accumulation in sulfide-driven autotrophic denitrification, one of the dominant processes during anoxic marine sediment remediation, was investigated in this study. Microorganisms which were phylogenetically closely related with Sulfurimonas denitrificans of ε-Proteobacteria and Thiohalomonas denitrificans of γ-Proteobacteria were the major autotrophic denitrifiers in this study. Nitrate concentration was demonstrated to have selective effect on denitrifying microbial community as revealed by denaturing gradient gel electrophoresis. Denitrifiers enriched at 30mM NO3- have higher diversity than other two groups (10, and 80mM NO3-) according to Shannon index. Denitrification showed zero-order reaction kinetics when nitrate concentration was higher than 4mM. Neither absolute nitrate concentration nor overall nitrate/sulfide ratio acted as the determinant for denitrification byproduct (i.e. N2O and NO2-) accumulation. The limitation of sulfide due to low mass transfer might be the reason for the byproduct accumulation. © 2011 Elsevier Ltd. | ||||
Persistent Identifier | http://hdl.handle.net/10722/139040 | ||||
ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 1.806 | ||||
ISI Accession Number ID |
Funding Information: This study was partially supported by RGC (HKU7122/10E) of Hong Kong. Dr. Ming-Fei Shao wishes to thank HKU for the postdoctoral fellowship. | ||||
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shao, MF | en_HK |
dc.contributor.author | Zhang, T | en_HK |
dc.contributor.author | Fang, HHP | en_HK |
dc.contributor.author | Li, X | en_HK |
dc.date.accessioned | 2011-09-23T05:44:32Z | - |
dc.date.available | 2011-09-23T05:44:32Z | - |
dc.date.issued | 2011 | en_HK |
dc.identifier.citation | Chemosphere, 2011, v. 83 n. 1, p. 1-6 | en_HK |
dc.identifier.issn | 0045-6535 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/139040 | - |
dc.description.abstract | The effect of nitrate concentration on denitrification rate, microbial community and byproduct accumulation in sulfide-driven autotrophic denitrification, one of the dominant processes during anoxic marine sediment remediation, was investigated in this study. Microorganisms which were phylogenetically closely related with Sulfurimonas denitrificans of ε-Proteobacteria and Thiohalomonas denitrificans of γ-Proteobacteria were the major autotrophic denitrifiers in this study. Nitrate concentration was demonstrated to have selective effect on denitrifying microbial community as revealed by denaturing gradient gel electrophoresis. Denitrifiers enriched at 30mM NO3- have higher diversity than other two groups (10, and 80mM NO3-) according to Shannon index. Denitrification showed zero-order reaction kinetics when nitrate concentration was higher than 4mM. Neither absolute nitrate concentration nor overall nitrate/sulfide ratio acted as the determinant for denitrification byproduct (i.e. N2O and NO2-) accumulation. The limitation of sulfide due to low mass transfer might be the reason for the byproduct accumulation. © 2011 Elsevier Ltd. | en_HK |
dc.language | eng | en_US |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere | en_HK |
dc.relation.ispartof | Chemosphere | en_HK |
dc.subject | Autotrophic denitrification | en_HK |
dc.subject | Nitrate concentration | en_HK |
dc.subject | Sediment | en_HK |
dc.subject | Sulfurimonas denitrificans | en_HK |
dc.subject.mesh | Bacteria - classification - genetics - metabolism | - |
dc.subject.mesh | Geologic Sediments - chemistry - microbiology | - |
dc.subject.mesh | Nitrates - analysis - metabolism | - |
dc.subject.mesh | Sulfides - metabolism | - |
dc.subject.mesh | Water Pollutants, Chemical - analysis - metabolism | - |
dc.title | The effect of nitrate concentration on sulfide-driven autotrophic denitrification in marine sediment | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Zhang, T:zhangt@hkucc.hku.hk | en_HK |
dc.identifier.email | Fang, HHP:hrechef@hkucc.hku.hk | en_HK |
dc.identifier.authority | Zhang, T=rp00211 | en_HK |
dc.identifier.authority | Fang, HHP=rp00115 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.chemosphere.2011.01.042 | en_HK |
dc.identifier.pmid | 21316076 | - |
dc.identifier.scopus | eid_2-s2.0-79951852805 | en_HK |
dc.identifier.hkuros | 192705 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-79951852805&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 83 | en_HK |
dc.identifier.issue | 1 | en_HK |
dc.identifier.spage | 1 | en_HK |
dc.identifier.epage | 6 | en_HK |
dc.identifier.eissn | 1879-1298 | - |
dc.identifier.isi | WOS:000288734900001 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Shao, MF=36656379800 | en_HK |
dc.identifier.scopusauthorid | Zhang, T=24470677400 | en_HK |
dc.identifier.scopusauthorid | Fang, HHP=7402542625 | en_HK |
dc.identifier.scopusauthorid | Li, X=38461413700 | en_HK |
dc.identifier.issnl | 0045-6535 | - |