| Author | Carels, Nicolas | |
| Author | Gumiel, Marcial | |
| Author | Mota, Fabio Faria da | |
| Author | Moreira, Carlos José de Carvalho | |
| Author | Azambuja, Patricia | |
| Access date | 2018-02-08T11:56:48Z | |
| Available date | 2018-02-08T11:56:48Z | |
| Document date | 2017 | |
| Citation | CARELS, Nicolas; et al. A Metagenomic Analysis of Bacterial Microbiota in the Digestive Tract of Triatomines. Bioinformatics and Biology Insights, v.11, p.1-19, 2017. | pt_BR |
| URI | https://www.arca.fiocruz.br/handle/icict/24758 | |
| Language | eng | pt_BR |
| Publisher | Libertas Academica | pt_BR |
| Rights | open access | |
| Subject in Portuguese | Nicho ecológico | pt_BR |
| Subject in Portuguese | Microbiota Bacteriana | pt_BR |
| Subject in Portuguese | Intestino médio | pt_BR |
| Subject in Portuguese | Análise Metagenômica | pt_BR |
| Subject in Portuguese | Trato Digestivo de Triatomíneos | pt_BR |
| Title | A Metagenomic Analysis of Bacterial Microbiota in the Digestive Tract of Triatomines | pt_BR |
| Type | Article | |
| DOI | 10.1177/1177932217733422 | |
| Abstract | The digestive tract of triatomines (DTT) is an ecological niche favored by microbiota whose enzymatic profile is adapted to the specific substrate availability in this medium. This report describes the molecular enzymatic properties that promote bacterial prominence in the DTT. The microbiota composition was assessed previously based on 16S ribosomal DNA, and whole sequenced genomes of bacteria from the same genera were used to calculate the GC level of rare and prominent bacterial species in the DTT. The enzymatic reactions encoded by coding sequences of both rare and common bacterial species were then compared and revealed key functions explaining why some genera outcompete others in the DTT. Representativeness of DTT microbiota was investigated by shotgun sequencing of DNA extracted from bacteria grown in liquid Luria-Bertani broth (LB) medium. Results showed that GC-rich bacteria outcompete GC-poor bacteria and are the dominant components of the DTT microbiota. In addition, oxidoreductases are the main enzymatic components of these bacteria. In particular, nitrate reductases (anaerobic respiration), oxygenases (catabolism of complex substrates), acetate-CoA ligase (tricarboxylic acid cycle and energy metabolism), and kinase (signaling pathway) were the major enzymatic determinants present together with a large group of minor enzymes including hydrogenases involved in energy and amino acid metabolism. In conclusion, despite their slower growth in liquid LB medium, bacteria from GC-rich genera outcompete the GC-poor bacteria because their specific enzymatic abilities impart a selective advantage in the DTT. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Centro de Desenvolvimento Tecnológico em Saúde. Instituto Nacional de Ciência e Tecnologia de Inovação em Doenças Negligenciadas. Laboratório de Modelagem de Sistemas Biológicos. Rio de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica e Fisiologia de Insetos. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia Computacional e Sistemas. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Doenças Parasitárias. Rio de Janeiro, RJ. Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica e Fisiologia de Insetos. Rio de Janeiro, RJ. Brasil / Instituto Nacional de Entomologia Molecular. Departamento de Entomologia Molecular. Rio de Janeiro, RJ, Brasil. | pt_BR |
| Subject | Digestive Tract of Triatomines | pt_BR |
| Subject | ecological niche | pt_BR |
| Subject | midgut | pt_BR |
| Subject | Metagenomic Analysis | pt_BR |
| Subject | Bacterial Microbiota | pt_BR |
| e-ISSN | 1177-9322 | |
