| Texto completo | |
| Autor(es): |
Gazulla, Carlota R.
;
Auladell, Adria
;
Ruiz-Gonzalez, Clara
;
Junger, Pedro C.
;
Royo-Llonch, Marta
;
Duarte, Carlos M.
;
Gasol, Josep M.
;
Sanchez, Olga
;
Ferrera, Isabel
Número total de Autores: 9
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ENVIRONMENTAL MICROBIOLOGY; v. 24, n. 5, p. 17-pg., 2022-01-27. |
| Resumo | |
The aerobic anoxygenic phototrophic (AAP) bacteria are common in most marine environments but their global diversity and biogeography remain poorly characterized. Here, we analyzed AAP communities across 113 globally-distributed surface ocean stations sampled during the Malaspina Expedition in the tropical and subtropical ocean. By means of amplicon sequencing of the pufM gene, a genetic marker for this functional group, we show that AAP communities along the surface ocean were mainly composed of members of the Halieaceae (Gammaproteobacteria), which were adapted to a large range of environmental conditions, and of different clades of the Alphaproteobacteria, which seemed to dominate under particular circumstances, such as in the oligotrophic gyres. AAP taxa were spatially structured within each of the studied oceans, with communities from adjacent stations sharing more taxonomic similarities. AAP communities were composed of a large pool of rare members and several habitat specialists. When compared to the surface ocean prokaryotic and picoeukaryotic communities, it appears that AAP communities display an idiosyncratic global biogeographical pattern, dominated by selection processes and less influenced by dispersal limitation. Our study contributes to the understanding of how AAP communities are distributed in the horizontal dimension and the mechanisms underlying their distribution across the global surface ocean. (AU) | |
| Processo FAPESP: | 20/02517-4 - Partição de nicho em bactérias marinhas onipresentes, abundantes e previamente negligenciadas: um estudo de caso da ordem Rhodospirillales |
| Beneficiário: | Pedro Ciarlini Junger Soares |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Doutorado |
| Processo FAPESP: | 17/26786-1 - Processos estruturantes de comunidades microbianas e redes de interações ecológicas em gradientes latitudinais do oceano global |
| Beneficiário: | Pedro Ciarlini Junger Soares |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |