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Metagenome-assembled genomes reveal greatly expanded taxonomic and functional diversification of the abundant marine Roseobacter RCA cluster

Citation
Liu et al. (2023). Microbiome 11 (1)
Names
Ca. Paraplanktomarina “Planktomarina forsetii” “Planktomarina arctica” “Planktomarina antarctica” “Pseudoplanktomarina bipolaris” “Pseudoplanktomarina karensis” “Pseudoplanktomarina atlantica” “Pseudoplanktomarina”
Abstract
Abstract Background The RCA (Roseobacter clade affiliated) cluster belongs to the family Roseobacteracea and represents a major Roseobacter lineage in temperate to polar oceans. Despite its prevalence and abundance, only a few genomes and one described species, Planktomarina temperata, exist. To gain more insights into our limited understanding of this cluster and its taxonomic and functional diversity and biogeography, we screened metagenomic datasets from the gl

Synthase-selected sorting approach identifies a beta-lactone synthase in a nudibranch symbiotic bacterium

Citation
Džunková et al. (2023). Microbiome 11 (1)
Names
Doriopsillibacter californiensis Ts Doriopsillibacter Perseibacteraceae
Abstract
Abstract Background Nudibranchs comprise a group of > 6000 marine soft-bodied mollusk species known to use secondary metabolites (natural products) for chemical defense. The full diversity of these metabolites and whether symbiotic microbes are responsible for their synthesis remains unexplored. Another issue in searching for undiscovered natural products is that computational analysis of genomes of uncultured microbes can result in detection of novel biosynthe

Population structure of an Antarctic aquatic cyanobacterium

Citation
Panwar et al. (2022). Microbiome 10 (1)
Names
“Regnicoccus frigidus” Ca. Chlorobium antarcticum “Regnicoccus”
Abstract
Abstract Background Ace Lake is a marine-derived, stratified lake in the Vestfold Hills of East Antarctica with an upper oxic and lower anoxic zone. Cyanobacteria are known to reside throughout the water column. A Synechococcus-like species becomes the most abundant member in the upper sunlit waters during summer while persisting annually even in the absence of sunlight and at depth in the anoxic zone. Here, we analysed ~ 300 Gb of Ace Lake metagenome data includi

A genomic view of trophic and metabolic diversity in clade-specific Lamellodysidea sponge microbiomes

Citation
Podell et al. (2020). Microbiome 8 (1)
Names
“Methylospongiales”
Abstract
Abstract Background Marine sponges and their microbiomes contribute significantly to carbon and nutrient cycling in global reefs, processing and remineralizing dissolved and particulate organic matter. Lamellodysidea herbacea sponges obtain additional energy from abundant photosynthetic Hormoscilla cyanobacterial symbionts, which also produce polybrominated diphenyl ethers (PBDEs) chemically similar to anthropogenic pollutants of environmental concern. Potential contributions of non-Hormoscilla