Ontology highlight
ABSTRACT:
PROVIDER: PRJNA997444 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:This SuperSeries is composed of the following subset Series: GSE15272: Diurnally synchronized transitions between oxic and anoxic physiologies in an archaeon, experiment "A" GSE15273: Diurnally synchronized transitions between oxic and anoxic physiologies in an archaeon, experiment "B" GSE15274: Diurnally synchronized transitions between oxic and anoxic physiologies in an archaeon, experiment "Control-1" GSE15275: Diurnally synchronized transitions between oxic and anoxic physiologies in an archaeon, experiment "C" GSE15276: Diurnally synchronized transitions between oxic and anoxic physiologies in an archaeon, experiment "Control-2" Refer to individual Series
2009-04-14 | E-GEOD-15282 | biostudies-arrayexpress
Project description:Microbial community in oxic-settling-anoxic process
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Project description:To understand the physiological response of Calu-3 cells to dual oxic-anoxic culture
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Project description:Chemosynthetic symbioses occur worldwide in marine habitats, but comprehensive physiological studies of chemoautotrophic bacteria thriving on animals are scarce. Stilbonematinae are coated by monocultures of thiotrophic Gammaproteobacteria. As these nematodes migrate through the redox zone, their ectosymbionts experience varying oxygen concentrations. Here, by applying omics, Raman microspectroscopy and stable isotope labeling, we investigated the effect of oxygen on the metabolism of Candidatus Thiosymbion oneisti. Unexpectedly, sulfur oxidation genes were upregulated in anoxic relative to oxic conditions, but carbon fixation genes and incorporation of 13C-labeled bicarbonate were not. Instead, several genes involved in carbon fixation, organic carbon assimilation and polyhydroxyalkanoate (PHA) biosynthesis, as well as nitrogen fixation and urea utilization were upregulated in oxic conditions. Furthermore, in the presence of oxygen, stress-related genes were upregulated together with vitamin biosynthesis genes likely necessary to withstand its deleterious effects, and fewer symbionts were detected to divide. Based on this first global physiological study of an uncultured chemosynthetic ectosymbiont, we propose that, in anoxic sediment, its proliferation is powered by anaerobic sulfur oxidation coupled to denitrification, whereas in upper layers it makes use of aerobic respiration to facilitate assimilation of carbon and nitrogen, and to survive oxidative stress. The ectosymbiont’s versatile metabolism is thus well-adapted to exploiting a highly changeable environment.
2020-04-30 | GSE146081 | GEO
Project description:We reported the microbial communities in the biofilm anoxic-oxic-MBR system operated with different carbon source types.
2019-10-19 | GSE139113 | GEO
Project description:The aim of this study is to investigate the transcriptional response of S. Typhimurium to heat, osmotic, oxidative and acid stress under anoxic and oxic conditions and to non-stressed anoxic conditions.
2013-11-11 | E-MTAB-1804 | biostudies-arrayexpress