Microbial communities in the deep-sea sediments of the South São Paulo Plateau, Southwestern Atlantic Ocean / Comunidades microbianas en los sedimentos de aguas profundas de la meseta sur de São Paulo, océano Atlántico sudoccidental
Int. microbiol
; 26(4): 1041-1051, Nov. 2023. mapas
Artigo
em Inglês
| IBECS
| ID: ibc-227491
Biblioteca responsável:
ES1.1
Localização: ES15.1 - BNCS
ABSTRACT
Microbial communities play a key role in the ocean, acting as primary producers, nutrient recyclers, and energy providers. The São Paulo Plateau is a region located on the southeastern coast of Brazil within economic importance, due to its oil and gas reservoirs. With this focus, this study examined the diversity and composition of microbial communities in marine sediments located at three oceanographic stations in the southern region of São Paulo Plateau using the HOV Shinkai 6500 in 2013. The 16S rRNA gene was sequenced using the universal primers (515F and 926R) by the Illumina Miseq platform. The taxonomic compositions of samples recovered from SP3 station were markedly distinct from those obtained from SP1 and SP2. Although all three stations exhibited a high abundance of Gammaproteobacteria (> 15%), this taxon dominated more than 90% of composition of the A and C sediment layers at SP3. The highest abundance of the archaeal class Nitrososphaeria was presented at SP1, mainly at layer C (~ 21%), being absent at SP3 station. The prediction of chemoheterotrophy and fermentation as important microbial functions was supported by the data. Additionally, other metabolic pathways related to the cycles of nitrogen, carbon and sulfur were also predicted. The core microbiome analysis comprised only two ASVs. Our study contributes to a better understanding of microbial communities in an economically important little-explored region. This is the third microbiological survey in plateau sediments and the first focused on the southern region.(AU)
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Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Oceano Atlântico
/
RNA Ribossômico 16S
/
Sedimentos Geológicos
/
Microbiota
Limite:
Humanos
País/Região como assunto:
América do Sul
/
Brasil
Idioma:
Inglês
Revista:
Int. microbiol
Ano de publicação:
2023
Tipo de documento:
Artigo
Instituição/País de afiliação:
Federal University of Paraná/Brazil