Genomic characterization of symbiotic mycoplasmas from the stomach of deep‐sea isopod bathynomus sp - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Environmental Microbiology Année : 2016

Genomic characterization of symbiotic mycoplasmas from the stomach of deep‐sea isopod bathynomus sp

Résumé

Deep‐sea isopod scavengers such as Bathynomus sp. are able to live in nutrient‐poor environments, which is likely attributable to the presence of symbiotic microbes in their stomach. In this study we recovered two draft genomes of mycoplasmas, Bg1 and Bg2, from the metagenomes of the stomach contents and stomach sac of a Bathynomus sp. sample from the South China Sea (depth of 898 m). Phylogenetic trees revealed a considerable genetic distance to other mycoplasma species for Bg1 and Bg2. Compared with terrestrial symbiotic mycoplasmas, the Bg1 and Bg2 genomes were enriched with genes encoding phosphoenolpyruvate‐dependent phosphotransferase systems (PTSs) and sodium‐driven symporters responsible for the uptake of sugars, amino acids and other carbohydrates. The genome of mycoplasma Bg1 contained sialic acid lyase and transporter genes, potentially enabling the bacteria to attach to the stomach sac and obtain organic carbons from various cell walls. Both of the mycoplasma genomes contained multiple copies of genes related to proteolysis and oligosaccharide degradation, which may help the host survive in low‐nutrient conditions. The discovery of the different types of mycoplasma bacteria in the stomach of this deep‐sea isopod affords insights into symbiotic model of deep‐sea animals and genomic plasticity of mycoplasma bacteria.

Dates et versions

hal-04570966 , version 1 (07-05-2024)

Identifiants

Citer

Yong Wang, Jiao‐mei Huang, Shao‐lu Wang, Zhao‐ming Gao, Ai‐qun Zhang, et al.. Genomic characterization of symbiotic mycoplasmas from the stomach of deep‐sea isopod bathynomus sp. Environmental Microbiology, 2016, 18 (8), pp.2646-2659. ⟨10.1111/1462-2920.13411⟩. ⟨hal-04570966⟩
0 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More