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Impacts of humic substances, elevated temperature, and UVB radiation on bacterial communities of the marine sponge Chondrilla sp.
Stuij, Tamara M; Cleary, Daniel F R; Rocha, Rui J M; Polónia, Ana R M; Silva, Davide A M; Louvado, Antonio; de Voogd, Nicole J; Gomes, Newton C M.
Afiliação
  • Stuij TM; Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal.
  • Cleary DFR; Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal.
  • Rocha RJM; Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal.
  • Polónia ARM; Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal.
  • Silva DAM; Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal.
  • Louvado A; Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Campus Universitário Santiago, 3810-193, Aveiro, Portugal.
  • de Voogd NJ; Naturalis Biodiversity Center, Darwinweg 2, 2333 CR, Leiden, the Netherlands.
  • Gomes NCM; Institute of Biology (IBL), Leiden University, Sylviusweg 72, 2333 BE, Leiden, the Netherlands.
FEMS Microbiol Ecol ; 100(3)2024 Feb 14.
Article em En | MEDLINE | ID: mdl-38366951
ABSTRACT
Sponges are abundant components of coral reefs known for their filtration capabilities and intricate interactions with microbes. They play a crucial role in maintaining the ecological balance of coral reefs. Humic substances (HS) affect bacterial communities across terrestrial, freshwater, and marine ecosystems. However, the specific effects of HS on sponge-associated microbial symbionts have largely been neglected. Here, we used a randomized-controlled microcosm setup to investigate the independent and interactive effects of HS, elevated temperature, and UVB radiation on bacterial communities associated with the sponge Chondrilla sp. Our results indicated the presence of a core bacterial community consisting of relatively abundant members, apparently resilient to the tested environmental perturbations, alongside a variable bacterial community. Elevated temperature positively affected the relative abundances of ASVs related to Planctomycetales and members of the families Pseudohongiellaceae and Hyphomonadaceae. HS increased the relative abundances of several ASVs potentially involved in recalcitrant organic matter degradation (e.g., the BD2-11 terrestrial group, Saccharimonadales, and SAR202 clade). There was no significant independent effect of UVB and there were no significant interactive effects of HS, heat, and UVB on bacterial diversity and composition. The significant, independent impact of HS on the composition of sponge bacterial communities suggests that alterations to HS inputs may have cascading effects on adjacent marine ecosystems.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poríferos / Sulfonamidas / Asteraceae / Isoquinolinas Limite: Animals / Humans Idioma: En Revista: FEMS Microbiol Ecol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Portugal

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poríferos / Sulfonamidas / Asteraceae / Isoquinolinas Limite: Animals / Humans Idioma: En Revista: FEMS Microbiol Ecol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Portugal