Cupriavidus sp.
Ontology highlight
ABSTRACT:
PROVIDER: PRJDB15420 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Taxonomy of Novel Oxalotrophic and Methylotrophic Bacteria
| PRJDB14265 | ENA
Project description:Different Cupriavidus metallidurans strains isolated from metal-contaminated and other anthropogenic environments were genotypically and phenotypically compared with C. metallidurans type strain CH34. The latter is well-studied for its resistance to a wide range of metals, which is carried for a substantial part by its two megaplasmids pMOL28 and pMOL30. Comparative genomic hybridization (CGH) indicated that the extensive arsenal of determinants involved in metal resistance was well conserved among the different C. metallidurans strains. Contrary, the mobile genetic elements identified in type strain CH34 were not present in all strains but clearly showed a pattern, although, not directly related to a particular biotope nor location (geographical). One group of strains carried almost all mobile genetic elements, while these were much less abundant in the second group. This occurrence was also reflected in their ability to degrade toluene and grow autotrophically on hydrogen gas and carbon dioxide, which are two traits linked to separate genomic islands of the Tn4371-family. In addition, the clear pattern of genomic islands distribution allowed to identify new putative genomic islands on chromosome 1 and 2 of C. metallidurans CH34. Metal resistance determinants are shared by all C. metallidurans strains and their occurrence is apparently irrespective of the strain's isolation type and place. Cupriavidus metallidurans strains do display substantial differences in the diversity and size of their mobile gene pool, which may be extensive in some (including the type strain) while marginal in others.
2014-01-23 | GSE36303 | GEO
Project description: Not available
| S-EPMC3569349 | biostudies-literature
Project description: Not available
| S-EPMC8444968 | biostudies-literature
Project description:Stress response of Cupriavidus metallidurans strains
| PRJNA270361 | ENA
Project description:Nostoc cyanobacteria are capable to form symbiotic relationships with plants, transitioning to a heterotrophic lifestyle in return for providing bioavailable nitrogen to the host. The diazotrophic photoautotrophs also serve as a hub for a specialized heterotrophic bacterial community whose physiological contributions are poorly understood. By comparing the axenic strain N. punctiforme PCC 73102 and the related strains Nostoc sp. KVJ2 and KVJ3, which still maintain their heterotrophic microbiome, we were able to demonstrate an almost obligate dependence of the cyanobacteria on the heterotrophic partners under carbon-limiting conditions. Detailed analysis of the intimate bilateral relationship between Nostoc punctiforme and the isolate Agrobacterium tumefaciens Het4 using multi-omics technologies and microscopy uncovered a complex partnership characterized, among other traits, by competition for iron and facilitation for carbon. Although competitive interactions with A. tumefaciens Het4 compromise nitrogen fixation and stimulate the degradation of cyanophycin, mutualistic dependency prevails under inorganic carbon limitation. Both the absence of the high affinity bicarbonate uptake transporter SbtA and the prevalent extracarboxysomal localization of the carbon-fixing enzyme RubisCO as detected by immunofluorescence microscopy suggest a weak carbon concentrating mechanism in N. punctiforme that enforces a dependence on heterotrophic bacteria. Further, immunofluorescence, electron microscopic and proteomic analyses reveal a pronounced extracellular recycling of proteins under N- and C-limiting conditions. The pivotal influence of heterotrophic bacteria on symbiotic Nostoc strains should be considered when analyzing these strains, especially in the free-living state, and also sheds new light on the benefit to Nostoc of the provision of organic carbon by plant hosts.
2025-04-09 | PXD052511 | Pride