Terrestrial dissolved organic matter inflow drives temporal dynamics of the bacterial community of a subarctic estuary (northern Baltic Sea)

被引:27
作者
Figueroa, Daniela [1 ,2 ]
Capo, Eric [1 ]
Lindh, Markus V. [3 ,5 ]
Rowe, Owen F. [4 ]
Paczkowska, Joanna [1 ,2 ]
Pinhassi, Jarone [3 ]
Andersson, Agneta [1 ,2 ]
机构
[1] Umea Univ, Dept Ecol & Environm Sci, SE-90187 Umea, Sweden
[2] Umea Marine Sci Ctr, SE-90571 Hornefors, Sweden
[3] Linnaeus Univ, EEMiS, Ecol & Evolut Microbial Model Syst, SE-39182 Kalmar, Sweden
[4] Baltic Marine Environm Protect Commiss HELCOM, FI-00160 Helsinki, Finland
[5] Swedish Meteorol & Hydrol Inst SMHI, SE-42171 Gothenburg, Sweden
关键词
BACTERIOPLANKTON COMMUNITY; CARBON; PATTERNS; BIOGEOGRAPHY; FLUORESCENCE; DEGRADATION; METABOLISM; MODULARITY; OCEAN;
D O I
10.1111/1462-2920.15597
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Climate change is projected to cause increased inflow of terrestrial dissolved organic matter to coastal areas in northerly regions. Estuarine bacterial community will thereby receive larger loads of organic matter and inorganic nutrients available for microbial metabolism. The composition of the bacterial community and its ecological functions may thus be affected. We studied the responses of bacterial community to inflow of terrestrial dissolved organic matter in a subarctic estuary in the northern Baltic Sea, using a 16S rRNA gene metabarcoding approach. Betaproteobacteria dominated during the spring river flush, constituting similar to 60% of the bacterial community. Bacterial diversity increased as the runoff decreased during summer, when Verrucomicrobia, Betaproteobacteria, Bacteroidetes, Gammaproteobacteria and Planctomycetes dominated the community. Network analysis revealed that a larger number of associations between bacterial populations occurred during the summer than in spring. Betaproteobacteria and Bacteroidetes populations appeared to display similar correlations to environmental factors. In spring, freshly discharged organic matter favoured specialists, while in summer a mix of autochthonous and terrestrial organic matter promoted the development of generalists. Our study indicates that increased inflows of terrestrial organic matter-loaded freshwater to coastal areas would promote specialist bacteria, which in turn might enhance the transformation of terrestrial organic matter in estuarine environments.
引用
收藏
页码:4200 / 4213
页数:14
相关论文
共 65 条
[41]   Modularity and community structure in networks [J].
Newman, M. E. J. .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (23) :8577-8582
[42]   A Guide to the Natural History of Freshwater Lake Bacteria [J].
Newton, Ryan J. ;
Jones, Stuart E. ;
Eiler, Alexander ;
McMahon, Katherine D. ;
Bertilsson, Stefan .
MICROBIOLOGY AND MOLECULAR BIOLOGY REVIEWS, 2011, 75 (01) :14-49
[43]  
Oksanen J., 2016, Vegan: ecological diversity
[44]   The modularity of pollination networks [J].
Olesen, Jens M. ;
Bascompte, Jordi ;
Dupont, Yoko L. ;
Jordano, Pedro .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2007, 104 (50) :19891-19896
[45]   Interactions between hydrology and water chemistry shape bacterioplankton biogeography across boreal freshwater networks [J].
Pablo Nino-Garcia, Juan ;
Ruiz-Gonzalez, Clara ;
del Giorgio, Paul A. .
ISME JOURNAL, 2016, 10 (07) :1755-1766
[46]   Genomic analysis of the potential for aromatic compounds biodegradation in Burkholderiales [J].
Perez-Pantoja, Danilo ;
Donoso, Raul ;
Agullo, Loreine ;
Cordova, Macarena ;
Seeger, Michael ;
Pieper, Dietmar H. ;
Gonzalez, Bernardo .
ENVIRONMENTAL MICROBIOLOGY, 2012, 14 (05) :1091-1117
[47]   Changes in bacterioplankton composition under different phytoplankton regimens [J].
Pinhassi, J ;
Sala, MM ;
Havskum, H ;
Peters, F ;
Guadayol, O ;
Malits, A ;
Marrasé, C .
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2004, 70 (11) :6753-6766
[48]   The SILVA ribosomal RNA gene database project: improved data processing and web-based tools [J].
Quast, Christian ;
Pruesse, Elmar ;
Yilmaz, Pelin ;
Gerken, Jan ;
Schweer, Timmy ;
Yarza, Pablo ;
Peplies, Joerg ;
Gloeckner, Frank Oliver .
NUCLEIC ACIDS RESEARCH, 2013, 41 (D1) :D590-D596
[49]   Phylogenetic comparisons of a coastal bacterioplankton community with its counterparts in open ocean and freshwater systems [J].
Rappé, MS ;
Vergin, K ;
Giovannoni, SJ .
FEMS MICROBIOLOGY ECOLOGY, 2000, 33 (03) :219-232
[50]   Seasonal contribution of terrestrial organic matter and biological oxygen demand to the Baltic Sea from three contrasting river catchments [J].
Reader, H. E. ;
Stedmon, C. A. ;
Kritzberg, E. S. .
BIOGEOSCIENCES, 2014, 11 (12) :3409-3419