Environmental Microbiology


Publications
73

Experimental evidence of <scp>d</scp>‐glutamate racemase activity in the uncultivated bacterium Candidatus Saccharimonas aalborgensis

Citation
Peñalver et al. (2024). Environmental Microbiology 26 (4)
Names
Ca. Saccharimonas aalborgenesis Saccharimonas aalborgensis Ts
Abstract
AbstractThe Candidate Phyla Radiation (CPR) encompasses widespread uncultivated bacteria with reduced genomes and limited metabolic capacities. Most CPR bacteria lack the minimal set of enzymes required for peptidoglycan (PG) synthesis, leaving it unclear how these bacteria produce this essential envelope component. In this study, we analysed the distribution of d‐amino acid racemases that produce the universal PG components d‐glutamate (d‐Glu) or d‐alanine (d‐Ala). We also examined moonlighting

Candidatus<scp>Tisiphia</scp>’ is a widespread <scp>Rickettsiaceae</scp> symbiont in the mosquito Anopheles plumbeus (<scp>Diptera: Culicidae</scp>)

Citation
Davison et al. (2023). Environmental Microbiology
Names
“Tisiphia”
Abstract
AbstractSymbiotic bacteria can alter host biology by providing protection from natural enemies, or alter reproduction or vectoral competence. Symbiont‐linked control of vector‐borne disease in Anopheles has been hampered by a lack of symbioses that can establish stable vertical transmission in the host. Previous screening found the symbiont ‘Candidatus Tisiphia’ in Anopheles plumbeus, an aggressive biter and potential secondary vector of malaria parasites and West Nile virus. We screened samples

Into the darkness: the ecologies of novel ‘microbial dark matter’ phyla in an Antarctic lake

Citation
Williams et al. (2022). Environmental Microbiology 24 (5)
Names
“Lernaellota” “Electryoneota” “Auribacterota” “Hinthialibacterota”
Abstract
SummaryUncultivated microbial clades (‘microbial dark matter’) are inferred to play important but uncharacterized roles in nutrient cycling. Using Antarctic lake (Ace Lake, Vestfold Hills) metagenomes, 12 metagenome‐assembled genomes (MAGs; 88%–100% complete) were generated for four ‘dark matter’ phyla: six MAGs from Candidatus Auribacterota (=Aureabacteria, SURF‐CP‐2), inferred to be hydrogen‐ and sulfide‐producing fermentative heterotrophs, with individual MAGs encoding bacterial microcompartm