Primary effects of extracellular enzyme activity and microbial community on carbon and nitrogen mineralization in estuarine and tidal wetlands.
Identifieur interne : 001669 ( Main/Corpus ); précédent : 001668; suivant : 001670Primary effects of extracellular enzyme activity and microbial community on carbon and nitrogen mineralization in estuarine and tidal wetlands.
Auteurs : Xiaofei Li ; Lijun Hou ; Min Liu ; Xianbiao Lin ; Ye Li ; Shuwen LiSource :
- Applied microbiology and biotechnology [ 1432-0614 ] ; 2015.
English descriptors
- KwdEn :
- Biomass (MeSH), Carbon (analysis), Chemical Phenomena (MeSH), China (MeSH), Enzymes (metabolism), Estuaries (MeSH), Geologic Sediments (microbiology), Gram-Negative Bacteria (enzymology), Linear Models (MeSH), Mycorrhizae (enzymology), Nitrogen (analysis), Phospholipids (analysis), Soil Microbiology (MeSH), Water Microbiology (MeSH), Wetlands (MeSH).
- MESH :
- chemical , analysis : Carbon, Nitrogen, Phospholipids.
- chemical , metabolism : Enzymes.
- enzymology : Gram-Negative Bacteria, Mycorrhizae.
- microbiology : Geologic Sediments.
- Biomass, Chemical Phenomena, China, Estuaries, Linear Models, Soil Microbiology, Water Microbiology, Wetlands.
Abstract
Estuarine and tidal wetlands with high primary productivity and biological activity play a crucial role in coastal nutrient dynamics. Here, to better reveal the effects of extracellular enzymes and microbial community on carbon (C) and nitrogen (N) mineralization, the incubation experiments with different C and N addition patterns to the tidal sediments of the Yangtze Estuary (China) were conducted. The results suggested a significant increase in cumulative CO2 effluxes in the C and CN treatment experiments, while no significant difference in cumulative CO2 effluxes between the N treatment and control (CK) experiments was observed. In addition, the nutrient addition patterns had a great influence on dissolve organic C and N levels, but a small effect on microbial biomass C and N. Microbial community composition and microbial activity were found to be positively correlated with organic C (OC) and the molar ratio of C to N (C/N). Partial correlation analysis, controlling for C/N, supported direct effects of OC on the activity of carbon-cycling extracellular enzymes (cellulase and polyphenol oxidase), while C/N exhibited negatively correlations with urease and Gram-positive bacteria to Gram-negative bacteria (G+/G-). Strong relationships were found between CO2 efflux and mineral nitrogen with the activity of specific enzymes (sucrase, cellulase, and polyphenol oxidase) and abundances of Gram-negative bacteria, arbuscular mycorrhizal fungi, and fungi, suggesting the significant influences of microbial community and enzyme activity on C and N mineralization in the estuarine and tidal wetlands. Furthermore, this study could highlight the need to explore effects of nutrient supply on microbial communities and enzyme activity changes associated with the C and N mineralization in these wetlands induced by the climate change.
DOI: 10.1007/s00253-014-6187-4
PubMed: 25381491
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pubmed:25381491Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Primary effects of extracellular enzyme activity and microbial community on carbon and nitrogen mineralization in estuarine and tidal wetlands.</title><author><name sortKey="Li, Xiaofei" sort="Li, Xiaofei" uniqKey="Li X" first="Xiaofei" last="Li">Xiaofei Li</name><affiliation><nlm:affiliation>College of Geographical Sciences, East China Normal University, 3663 North Zhongshan Road, 200062, Shanghai, China.</nlm:affiliation></affiliation></author><author><name sortKey="Hou, Lijun" sort="Hou, Lijun" uniqKey="Hou L" first="Lijun" last="Hou">Lijun Hou</name></author><author><name sortKey="Liu, Min" sort="Liu, Min" uniqKey="Liu M" first="Min" last="Liu">Min Liu</name></author><author><name sortKey="Lin, Xianbiao" sort="Lin, Xianbiao" uniqKey="Lin X" first="Xianbiao" last="Lin">Xianbiao Lin</name></author><author><name sortKey="Li, Ye" sort="Li, Ye" uniqKey="Li Y" first="Ye" last="Li">Ye Li</name></author><author><name sortKey="Li, Shuwen" sort="Li, Shuwen" uniqKey="Li S" first="Shuwen" last="Li">Shuwen Li</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2015">2015</date><idno type="RBID">pubmed:25381491</idno><idno type="pmid">25381491</idno><idno type="doi">10.1007/s00253-014-6187-4</idno><idno type="wicri:Area/Main/Corpus">001669</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001669</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Primary effects of extracellular enzyme activity and microbial community on carbon and nitrogen mineralization in estuarine and tidal wetlands.</title><author><name sortKey="Li, Xiaofei" sort="Li, Xiaofei" uniqKey="Li X" first="Xiaofei" last="Li">Xiaofei Li</name><affiliation><nlm:affiliation>College of Geographical Sciences, East China Normal University, 3663 North Zhongshan Road, 200062, Shanghai, China.</nlm:affiliation></affiliation></author><author><name sortKey="Hou, Lijun" sort="Hou, Lijun" uniqKey="Hou L" first="Lijun" last="Hou">Lijun Hou</name></author><author><name sortKey="Liu, Min" sort="Liu, Min" uniqKey="Liu M" first="Min" last="Liu">Min Liu</name></author><author><name sortKey="Lin, Xianbiao" sort="Lin, Xianbiao" uniqKey="Lin X" first="Xianbiao" last="Lin">Xianbiao Lin</name></author><author><name sortKey="Li, Ye" sort="Li, Ye" uniqKey="Li Y" first="Ye" last="Li">Ye Li</name></author><author><name sortKey="Li, Shuwen" sort="Li, Shuwen" uniqKey="Li S" first="Shuwen" last="Li">Shuwen Li</name></author></analytic><series><title level="j">Applied microbiology and biotechnology</title><idno type="eISSN">1432-0614</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomass (MeSH)</term><term>Carbon (analysis)</term><term>Chemical Phenomena (MeSH)</term><term>China (MeSH)</term><term>Enzymes (metabolism)</term><term>Estuaries (MeSH)</term><term>Geologic Sediments (microbiology)</term><term>Gram-Negative Bacteria (enzymology)</term><term>Linear Models (MeSH)</term><term>Mycorrhizae (enzymology)</term><term>Nitrogen (analysis)</term><term>Phospholipids (analysis)</term><term>Soil Microbiology (MeSH)</term><term>Water Microbiology (MeSH)</term><term>Wetlands (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Carbon</term><term>Nitrogen</term><term>Phospholipids</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Enzymes</term></keywords><keywords scheme="MESH" qualifier="enzymology" xml:lang="en"><term>Gram-Negative Bacteria</term><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Geologic Sediments</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomass</term><term>Chemical Phenomena</term><term>China</term><term>Estuaries</term><term>Linear Models</term><term>Soil Microbiology</term><term>Water Microbiology</term><term>Wetlands</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Estuarine and tidal wetlands with high primary productivity and biological activity play a crucial role in coastal nutrient dynamics. Here, to better reveal the effects of extracellular enzymes and microbial community on carbon (C) and nitrogen (N) mineralization, the incubation experiments with different C and N addition patterns to the tidal sediments of the Yangtze Estuary (China) were conducted. The results suggested a significant increase in cumulative CO2 effluxes in the C and CN treatment experiments, while no significant difference in cumulative CO2 effluxes between the N treatment and control (CK) experiments was observed. In addition, the nutrient addition patterns had a great influence on dissolve organic C and N levels, but a small effect on microbial biomass C and N. Microbial community composition and microbial activity were found to be positively correlated with organic C (OC) and the molar ratio of C to N (C/N). Partial correlation analysis, controlling for C/N, supported direct effects of OC on the activity of carbon-cycling extracellular enzymes (cellulase and polyphenol oxidase), while C/N exhibited negatively correlations with urease and Gram-positive bacteria to Gram-negative bacteria (G+/G-). Strong relationships were found between CO2 efflux and mineral nitrogen with the activity of specific enzymes (sucrase, cellulase, and polyphenol oxidase) and abundances of Gram-negative bacteria, arbuscular mycorrhizal fungi, and fungi, suggesting the significant influences of microbial community and enzyme activity on C and N mineralization in the estuarine and tidal wetlands. Furthermore, this study could highlight the need to explore effects of nutrient supply on microbial communities and enzyme activity changes associated with the C and N mineralization in these wetlands induced by the climate change. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">25381491</PMID><DateCompleted><Year>2016</Year><Month>02</Month><Day>01</Day></DateCompleted><DateRevised><Year>2016</Year><Month>11</Month><Day>25</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-0614</ISSN><JournalIssue CitedMedium="Internet"><Volume>99</Volume><Issue>6</Issue><PubDate><Year>2015</Year><Month>Mar</Month></PubDate></JournalIssue><Title>Applied microbiology and biotechnology</Title><ISOAbbreviation>Appl Microbiol Biotechnol</ISOAbbreviation></Journal><ArticleTitle>Primary effects of extracellular enzyme activity and microbial community on carbon and nitrogen mineralization in estuarine and tidal wetlands.</ArticleTitle><Pagination><MedlinePgn>2895-909</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00253-014-6187-4</ELocationID><Abstract><AbstractText>Estuarine and tidal wetlands with high primary productivity and biological activity play a crucial role in coastal nutrient dynamics. Here, to better reveal the effects of extracellular enzymes and microbial community on carbon (C) and nitrogen (N) mineralization, the incubation experiments with different C and N addition patterns to the tidal sediments of the Yangtze Estuary (China) were conducted. The results suggested a significant increase in cumulative CO2 effluxes in the C and CN treatment experiments, while no significant difference in cumulative CO2 effluxes between the N treatment and control (CK) experiments was observed. In addition, the nutrient addition patterns had a great influence on dissolve organic C and N levels, but a small effect on microbial biomass C and N. Microbial community composition and microbial activity were found to be positively correlated with organic C (OC) and the molar ratio of C to N (C/N). Partial correlation analysis, controlling for C/N, supported direct effects of OC on the activity of carbon-cycling extracellular enzymes (cellulase and polyphenol oxidase), while C/N exhibited negatively correlations with urease and Gram-positive bacteria to Gram-negative bacteria (G+/G-). Strong relationships were found between CO2 efflux and mineral nitrogen with the activity of specific enzymes (sucrase, cellulase, and polyphenol oxidase) and abundances of Gram-negative bacteria, arbuscular mycorrhizal fungi, and fungi, suggesting the significant influences of microbial community and enzyme activity on C and N mineralization in the estuarine and tidal wetlands. Furthermore, this study could highlight the need to explore effects of nutrient supply on microbial communities and enzyme activity changes associated with the C and N mineralization in these wetlands induced by the climate change. </AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Xiaofei</ForeName><Initials>X</Initials><AffiliationInfo><Affiliation>College of Geographical Sciences, East China Normal University, 3663 North Zhongshan Road, 200062, Shanghai, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hou</LastName><ForeName>Lijun</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Liu</LastName><ForeName>Min</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Lin</LastName><ForeName>Xianbiao</ForeName><Initials>X</Initials></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Ye</ForeName><Initials>Y</Initials></Author><Author 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