Publications by authors named "Sandra Godinho Silva"

This is the most comprehensive study performed thus far on the biosynthetic potential within the family. Our findings reveal intertwined taxonomic and natural product biosynthesis diversification within the family. We posit that the carbohydrate, peptide, and secondary metabolism triad synergistically shaped the evolution of this keystone bacterial taxon, acting as major forces underpinning the broad host range and opportunistic-to-pathogenic behavior encompassed by species in the family.

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Article Synopsis
  • Metagenomics is a rapidly growing field focused on studying microbial communities, but challenges arise from poorly classified data in existing databases like SRA and MG-RAST.
  • The Marine Metagenome Metadata Database (MarineMetagenomeDB) was created to provide a better way for researchers to find and analyze marine metagenomes, featuring curated metadata for thousands of samples.
  • The database includes detailed information on 11,449 marine metagenomes, allowing users to filter samples using a web app with search functionalities and a map to visualize sample locations, plus a tool for downloading raw sequence data easily.
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Two novel natural products, the polyketide cuniculene and the peptide antibiotic aquimarin, were recently discovered from the marine bacterial genus Aquimarina. However, the diversity of the secondary metabolite biosynthetic gene clusters (SM-BGCs) in Aquimarina genomes indicates a far greater biosynthetic potential. In this study, nine representative Aquimarina strains were tested for antimicrobial activity against diverse human-pathogenic and marine microorganisms and subjected to metabolomic and genomic profiling.

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Background: The ability to quantitatively predict ecophysiological functions of microbial communities provides an important step to engineer microbiota for desired functions related to specific biochemical conversions. Here, we present the quantitative prediction of medium-chain carboxylate production in two continuous anaerobic bioreactors from 16S rRNA gene dynamics in enriched communities.

Results: By progressively shortening the hydraulic retention time (HRT) from 8 to 2 days with different temporal schemes in two bioreactors operated for 211 days, we achieved higher productivities and yields of the target products n-caproate and n-caprylate.

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We report three metagenome-assembled genomes (MAGs) of strains from coastal seawater (Portugal) to help illuminate the functions of understudied bacteria in marine environments. The MAGs encode proteins involved in aerobic anoxygenic photosynthesis and a versatile carbohydrate metabolism, strengthening the role of species in oceanic carbon cycling.

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Here, we report the draft genome sequence of sp. strain EL138, an alphaproteobacterium that shows potential to degrade polycyclic aromatic compounds and to cope with various heavy metals and antibiotics. Moreover, the strain, isolated from the gorgonian coral , possesses several genes involved in the biosynthesis of polyphosphates, polyketides, and terpenoids.

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