Recent Differentiation of Aquatic Bacterial Communities in a Hydrological System in the Cuatro Ciénegas Basin, After a Natural Perturbation
García-Ulloa, Manuel (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia)
Souza, Valeria (Centro de Estudios del Cuaternario de Fuego-Patagonia y Antártica)
Esquivel Hernández, Diego A. (Universidad Nacional Autónoma de México)
Sánchez Pérez, Jazmín (Universidad Nacional Autónoma de México)
Espinosa Asuar, Laura (Universidad Nacional Autónoma de México)
Viladomat, Mariette (Universidad Nacional Autónoma de México)
Marroquín Rodríguez, Montserrat (Universidad Nacional Autónoma de México)
Navarro Miranda, Marisol (Universidad Nacional Autónoma de México)
Ruiz Padilla, Jair (Universidad Nacional Autónoma de México)
Monroy Guzmán, Camila (Universidad Nacional Autónoma de México)
Madrigal Trejo, David (Universidad Nacional Autónoma de México)
Rosas Barrera, Manuel (Universidad Nacional Autónoma de México)
Vázquez Rosas Landa, Mirna (Universidad Nacional Autónoma de México)
Eguiarte, Luis E. (Universidad Nacional Autónoma de México)

Date:	2022
Abstract:	Pozas Rojas is a hydrological system comprising nine isolated shallow ponds and a deep lagoon, which were temporally merged in 2010 by increased rainfall due to a tropical cyclone. In this work, we assess which components, biotic interactions, or environment filtering effects, drive the assembly of microbial communities after a natural perturbation. Arsenic, pH, and temperature are among the most significant environmental variables between each pond, clustering the samples in two main groups, whereas microbial composition is diverse and unique to each site, with no core at the operational taxonomic unit level and only 150 core genera when studied at the genus level. Los Hundidos lagoon has the most differentiated community, which is highly similar to the epipelagic Mediterranean Sea communities. On the other hand, the shallow ponds at the Pozas Rojas system resemble more to epicontinental hydrological systems, such as some cold rivers of the world and the phreatic mantle from Iowa. Overall, despite being a sole of water body 2 years prior to the sampling, interspecific interactions, rather than environmental selection, seem to play a more important role in Pozas Rojas, bolstered by founder effects on each poza and subsequent isolation of each water body.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Eltonian niche ; Grinnellian niche ; Founder effect ; Environmental filtering ; Compositional differentiation ; Ecological perturbation
Published in:	Frontiers in microbiology, Vol. 13 (April 2022) , art. 825167, ISSN 1664-302X

DOI: 10.3389/fmicb.2022.825167
PMID: 35572686

11 p, 3.0 MB

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