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Bacterial Communities Along Environmental Gradients in Tropical Soda Lakes.
Pellegrinetti, Thierry A; Cotta, Simone R; Sarmento, Hugo; Costa, Juliana S; Delbaje, Endrews; Montes, Celia R; Camargo, Plinio B; Barbiero, Laurent; Rezende-Filho, Ary T; Fiore, Marli F.
Afiliação
  • Pellegrinetti TA; Center for Nuclear Energy in Agriculture, University of São Paulo, Avenida Centenário 303, Piracicaba, São Paulo, 13416-000, Brazil.
  • Cotta SR; Center for Nuclear Energy in Agriculture, University of São Paulo, Avenida Centenário 303, Piracicaba, São Paulo, 13416-000, Brazil.
  • Sarmento H; Department of Hydrobiology, Federal University of São Carlos (UFSCar), São Carlos, São Paulo, 13565-905, Brazil.
  • Costa JS; Center for Nuclear Energy in Agriculture, University of São Paulo, Avenida Centenário 303, Piracicaba, São Paulo, 13416-000, Brazil.
  • Delbaje E; Center for Nuclear Energy in Agriculture, University of São Paulo, Avenida Centenário 303, Piracicaba, São Paulo, 13416-000, Brazil.
  • Montes CR; Center for Nuclear Energy in Agriculture, University of São Paulo, Avenida Centenário 303, Piracicaba, São Paulo, 13416-000, Brazil.
  • Camargo PB; Center for Nuclear Energy in Agriculture, University of São Paulo, Avenida Centenário 303, Piracicaba, São Paulo, 13416-000, Brazil.
  • Barbiero L; The Observatory Midi-Pyrénées, Geoscience Environment Toulouse, Research Institute for Development, The National Center for Research Scientific, Paul Sabatier University, 31400, Toulouse, France.
  • Rezende-Filho AT; Faculty of Engineering, Architecture and Urbanism and Geography, Federal University of Mato Grosso do Sul, Mato Grosso do Sul, Campo Grande, 79070-900, Brazil.
  • Fiore MF; Center for Nuclear Energy in Agriculture, University of São Paulo, Avenida Centenário 303, Piracicaba, São Paulo, 13416-000, Brazil. fiore@cena.usp.br.
Microb Ecol ; 85(3): 892-903, 2023 Apr.
Article em En | MEDLINE | ID: mdl-35916937
Soda lake environments are known to be variable and can have distinct differences according to geographical location. In this study, we investigated the effects of different environmental conditions of six adjacent soda lakes in the Pantanal biome (Mato Grosso do Sul state, Brazil) on bacterial communities and their functioning using a metagenomic approach combined with flow cytometry and chemical analyses. Ordination analysis using flow cytometry and water chemistry data from two sampling periods (wet and dry) clustered soda lakes into three different profiles: eutrophic turbid (ET), oligotrophic turbid (OT), and clear vegetated oligotrophic (CVO). Analysis of bacterial community composition and functioning corroborated this ordination; the exception was one ET lake, which was similar to one OT lake during the wet season, indicating drastic shifts between seasons. Microbial abundance and diversity increased during the dry period, along with a considerable number of limnological variables, all indicative of a strong effect of the precipitation-evaporation balance in these systems. Cyanobacteria were associated with high electric conductivity, pH, and nutrient availability, whereas Actinobacteria, Alphaproteobacteria, and Betaproteobacteria were correlated with landscape morphology variability (surface water, surface perimeter, and lake volume) and with lower salinity and pH levels. Stress response metabolism was enhanced in OT and ET lakes and underrepresented in CVO lakes. The microbiome dataset of this study can serve as a baseline for restoring impacted soda lakes. Altogether, the results of this study demonstrate the sensitivity of tropical soda lakes to climate change, as slight changes in hydrological regimes might produce drastic shifts in community diversity.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Lagos / Cianobactérias País/Região como assunto: America do sul / Brasil Idioma: En Revista: Microb Ecol Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Lagos / Cianobactérias País/Região como assunto: America do sul / Brasil Idioma: En Revista: Microb Ecol Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos