Impact of seasonal flooding and hydrological connectivity loss on microbial community dynamics in mangrove sediments of the southern Gulf of Mexico
Background Mangrove ecosystems play essential roles in coastal resilience, carbon sequestration, and biodiversity but are under increasing threat from anthropogenic pressures. This study explores the impact of hydrological variability on microbial communities in mangrove sediments of the southern Gu...
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PeerJ Inc.
2025-05-01
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| author | Mirna Vázquez-Rosas-Landa Rosela Pérez-Ceballos Arturo Zaldívar-Jiménez Stephanie Hereira Leonardo Pérez González Alejandra Prieto-Davó Omar Celis-Hernández Julio Cesar Canales-Delgadillo |
| author_facet | Mirna Vázquez-Rosas-Landa Rosela Pérez-Ceballos Arturo Zaldívar-Jiménez Stephanie Hereira Leonardo Pérez González Alejandra Prieto-Davó Omar Celis-Hernández Julio Cesar Canales-Delgadillo |
| author_sort | Mirna Vázquez-Rosas-Landa |
| collection | DOAJ |
| description | Background Mangrove ecosystems play essential roles in coastal resilience, carbon sequestration, and biodiversity but are under increasing threat from anthropogenic pressures. This study explores the impact of hydrological variability on microbial communities in mangrove sediments of the southern Gulf of Mexico. Methods We employed 16S rRNA sequencing to assess microbial diversity and function across different hydrological zones, seasons, and sediment depths at Estero Pargo. Results Our results show that microbial community composition is significantly influenced by hydrological conditions, with distinct microbial assemblages observed across the fringe, basin, and impaired zones. Seasonal variations were particularly pronounced, with higher microbial diversity during the flood season compared to the dry season. Depth also played a critical role, with surface layers (5 cm) predominantly featuring aerobic microbial communities, while deeper layers (20–40 cm) harbored anaerobic taxa such as Bathyarchaeota and Thermococcaceae. Notably, the impaired zone showed enrichment in genes related to denitrification and sulfur oxidation pathways, indicating strong microbial adaptation to reduced environments. These findings highlight the intricate interactions between microbial dynamics and environmental factors in mangrove ecosystems. Understanding these relationships is crucial for developing effective conservation and management strategies that enhance mangrove resilience in the face of global environmental changes. |
| format | Article |
| id | doaj-art-6eee2011c08b465aaf12370131c67d10 |
| institution | DOAJ |
| issn | 2167-8359 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | PeerJ Inc. |
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| spelling | doaj-art-6eee2011c08b465aaf12370131c67d102025-08-20T02:57:20ZengPeerJ Inc.PeerJ2167-83592025-05-0113e1937110.7717/peerj.19371Impact of seasonal flooding and hydrological connectivity loss on microbial community dynamics in mangrove sediments of the southern Gulf of MexicoMirna Vázquez-Rosas-Landa0Rosela Pérez-Ceballos1Arturo Zaldívar-Jiménez2Stephanie Hereira3Leonardo Pérez González4Alejandra Prieto-Davó5Omar Celis-Hernández6Julio Cesar Canales-Delgadillo7Unidad Académica de Ecología y Biodiversidad Acuática, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mexico, MexicoInstituto de Ciencias del Mar y Limnología Estación El Carmen, Universidad Nacional Autónoma de México, Ciudad del Carmen, Campeche, MexicoAsesoría Técnica y Estudios Costero, Merida, Yucatan, MexicoLaboratorio de Interacciones Bióticas, Centro de Investigación en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, MexicoUnidad Académica de Ecología y Biodiversidad Acuática, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mexico, MexicoUnidad de Química en Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto Abrigo, Yucatan, MexicoInstituto de Ciencias del Mar y Limnología Estación El Carmen, Universidad Nacional Autónoma de México, Ciudad del Carmen, Campeche, MexicoInstituto de Ciencias del Mar y Limnología Estación El Carmen, Universidad Nacional Autónoma de México, Ciudad del Carmen, Campeche, MexicoBackground Mangrove ecosystems play essential roles in coastal resilience, carbon sequestration, and biodiversity but are under increasing threat from anthropogenic pressures. This study explores the impact of hydrological variability on microbial communities in mangrove sediments of the southern Gulf of Mexico. Methods We employed 16S rRNA sequencing to assess microbial diversity and function across different hydrological zones, seasons, and sediment depths at Estero Pargo. Results Our results show that microbial community composition is significantly influenced by hydrological conditions, with distinct microbial assemblages observed across the fringe, basin, and impaired zones. Seasonal variations were particularly pronounced, with higher microbial diversity during the flood season compared to the dry season. Depth also played a critical role, with surface layers (5 cm) predominantly featuring aerobic microbial communities, while deeper layers (20–40 cm) harbored anaerobic taxa such as Bathyarchaeota and Thermococcaceae. Notably, the impaired zone showed enrichment in genes related to denitrification and sulfur oxidation pathways, indicating strong microbial adaptation to reduced environments. These findings highlight the intricate interactions between microbial dynamics and environmental factors in mangrove ecosystems. Understanding these relationships is crucial for developing effective conservation and management strategies that enhance mangrove resilience in the face of global environmental changes.https://peerj.com/articles/19371.pdfSoilDegradationMicrobiomeHolobiontHydroperiod |
| spellingShingle | Mirna Vázquez-Rosas-Landa Rosela Pérez-Ceballos Arturo Zaldívar-Jiménez Stephanie Hereira Leonardo Pérez González Alejandra Prieto-Davó Omar Celis-Hernández Julio Cesar Canales-Delgadillo Impact of seasonal flooding and hydrological connectivity loss on microbial community dynamics in mangrove sediments of the southern Gulf of Mexico PeerJ Soil Degradation Microbiome Holobiont Hydroperiod |
| title | Impact of seasonal flooding and hydrological connectivity loss on microbial community dynamics in mangrove sediments of the southern Gulf of Mexico |
| title_full | Impact of seasonal flooding and hydrological connectivity loss on microbial community dynamics in mangrove sediments of the southern Gulf of Mexico |
| title_fullStr | Impact of seasonal flooding and hydrological connectivity loss on microbial community dynamics in mangrove sediments of the southern Gulf of Mexico |
| title_full_unstemmed | Impact of seasonal flooding and hydrological connectivity loss on microbial community dynamics in mangrove sediments of the southern Gulf of Mexico |
| title_short | Impact of seasonal flooding and hydrological connectivity loss on microbial community dynamics in mangrove sediments of the southern Gulf of Mexico |
| title_sort | impact of seasonal flooding and hydrological connectivity loss on microbial community dynamics in mangrove sediments of the southern gulf of mexico |
| topic | Soil Degradation Microbiome Holobiont Hydroperiod |
| url | https://peerj.com/articles/19371.pdf |
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