Spatiotemporal dynamics of benthic bacterial communities in the Perdido Fold Belt, Northwestern Gulf of Mexico
This study analyzed the spatiotemporal dynamics of surficial benthic microbial communities in a bathymetric gradient (44 - 3573 m) across four oceanographic campaigns at the Perdido Fold Belt (PFB) in the northwestern Gulf of Mexico (nwGoM). Bioinformatic analysis of 16S rRNA gene amplicons grouped...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2023-03-01
|
| Series: | Frontiers in Marine Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2023.1070548/full |
| _version_ | 1811162407864631296 |
|---|---|
| author | Ma. Fernanda Sánchez-Soto Daniel Cerqueda-García M. Leopoldina Aguirre-Macedo José Q. García-Maldonado |
| author_facet | Ma. Fernanda Sánchez-Soto Daniel Cerqueda-García M. Leopoldina Aguirre-Macedo José Q. García-Maldonado |
| author_sort | Ma. Fernanda Sánchez-Soto |
| collection | DOAJ |
| description | This study analyzed the spatiotemporal dynamics of surficial benthic microbial communities in a bathymetric gradient (44 - 3573 m) across four oceanographic campaigns at the Perdido Fold Belt (PFB) in the northwestern Gulf of Mexico (nwGoM). Bioinformatic analysis of 16S rRNA gene amplicons grouped the 27 samples into three clusters according to a longitudinal bathymetric gradient. Differences in community structure among clusters, based on PERMANOVA analysis, were partially explained by cruise, water depth, temperature, salinity, nitrate plus nitrite, silicate, redox potential, Ni, Cd, Pb, and Al, as well by aliphatic and aromatic hydrocarbon concentrations. Into microbial community composition, Gemmatimonadaceae, Planctomycetaceae, and the JTB255 were detected at all depths across the four campaigns. Members of Anaerolinaceae and specific sulfate-reducing bacteria were more abundant in sites located between 43 and 1200 m, and Rhodospirillaceae, wb1-A12, OM1 clade, Desulfurellaceae, Gemmatimonadetes, Nitrospinaceae, and Clostridiaceae 1 were better represented in deeper sites. Alpha diversity was similar between the three groups and remained stable; however, 10 samples presented changes in the community structure across the four campaigns. Finally, a multivariable association analysis revealed 25 bacterial genera positively related with physicochemical parameters that characterized the environment from shallow to deep sea sites. Taken together, these results yield insights into the temporal stability of 17 of 27 sites in the PFB and revealed signature taxa with putatively ecological relevance in sedimentary environments. |
| first_indexed | 2024-04-10T06:29:41Z |
| format | Article |
| id | doaj.art-92345123be0f48ba82337b07be7c922c |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-10T06:29:41Z |
| publishDate | 2023-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-92345123be0f48ba82337b07be7c922c2023-03-01T12:20:09ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452023-03-011010.3389/fmars.2023.10705481070548Spatiotemporal dynamics of benthic bacterial communities in the Perdido Fold Belt, Northwestern Gulf of MexicoMa. Fernanda Sánchez-Soto0Daniel Cerqueda-García1M. Leopoldina Aguirre-Macedo2José Q. García-Maldonado3Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Yucatán, MexicoRed de Manejo Biorracional de Plagas y Vectores, Clúster Científico y Tecnológico Biomimic®, Instituto de Ecología, A.C., Xalapa, MexicoDepartamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Yucatán, MexicoDepartamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Yucatán, MexicoThis study analyzed the spatiotemporal dynamics of surficial benthic microbial communities in a bathymetric gradient (44 - 3573 m) across four oceanographic campaigns at the Perdido Fold Belt (PFB) in the northwestern Gulf of Mexico (nwGoM). Bioinformatic analysis of 16S rRNA gene amplicons grouped the 27 samples into three clusters according to a longitudinal bathymetric gradient. Differences in community structure among clusters, based on PERMANOVA analysis, were partially explained by cruise, water depth, temperature, salinity, nitrate plus nitrite, silicate, redox potential, Ni, Cd, Pb, and Al, as well by aliphatic and aromatic hydrocarbon concentrations. Into microbial community composition, Gemmatimonadaceae, Planctomycetaceae, and the JTB255 were detected at all depths across the four campaigns. Members of Anaerolinaceae and specific sulfate-reducing bacteria were more abundant in sites located between 43 and 1200 m, and Rhodospirillaceae, wb1-A12, OM1 clade, Desulfurellaceae, Gemmatimonadetes, Nitrospinaceae, and Clostridiaceae 1 were better represented in deeper sites. Alpha diversity was similar between the three groups and remained stable; however, 10 samples presented changes in the community structure across the four campaigns. Finally, a multivariable association analysis revealed 25 bacterial genera positively related with physicochemical parameters that characterized the environment from shallow to deep sea sites. Taken together, these results yield insights into the temporal stability of 17 of 27 sites in the PFB and revealed signature taxa with putatively ecological relevance in sedimentary environments.https://www.frontiersin.org/articles/10.3389/fmars.2023.1070548/fullbenthic bacteriamicrobial ecology16S rRNAtemporal stabilityGulf of Mexico |
| spellingShingle | Ma. Fernanda Sánchez-Soto Daniel Cerqueda-García M. Leopoldina Aguirre-Macedo José Q. García-Maldonado Spatiotemporal dynamics of benthic bacterial communities in the Perdido Fold Belt, Northwestern Gulf of Mexico Frontiers in Marine Science benthic bacteria microbial ecology 16S rRNA temporal stability Gulf of Mexico |
| title | Spatiotemporal dynamics of benthic bacterial communities in the Perdido Fold Belt, Northwestern Gulf of Mexico |
| title_full | Spatiotemporal dynamics of benthic bacterial communities in the Perdido Fold Belt, Northwestern Gulf of Mexico |
| title_fullStr | Spatiotemporal dynamics of benthic bacterial communities in the Perdido Fold Belt, Northwestern Gulf of Mexico |
| title_full_unstemmed | Spatiotemporal dynamics of benthic bacterial communities in the Perdido Fold Belt, Northwestern Gulf of Mexico |
| title_short | Spatiotemporal dynamics of benthic bacterial communities in the Perdido Fold Belt, Northwestern Gulf of Mexico |
| title_sort | spatiotemporal dynamics of benthic bacterial communities in the perdido fold belt northwestern gulf of mexico |
| topic | benthic bacteria microbial ecology 16S rRNA temporal stability Gulf of Mexico |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2023.1070548/full |
| work_keys_str_mv | AT mafernandasanchezsoto spatiotemporaldynamicsofbenthicbacterialcommunitiesintheperdidofoldbeltnorthwesterngulfofmexico AT danielcerquedagarcia spatiotemporaldynamicsofbenthicbacterialcommunitiesintheperdidofoldbeltnorthwesterngulfofmexico AT mleopoldinaaguirremacedo spatiotemporaldynamicsofbenthicbacterialcommunitiesintheperdidofoldbeltnorthwesterngulfofmexico AT joseqgarciamaldonado spatiotemporaldynamicsofbenthicbacterialcommunitiesintheperdidofoldbeltnorthwesterngulfofmexico |