Project description:Heavy metal-resistant bacteria secrete extracellular proteins (e-PNs). However, the role of e-PNs in heavy metal resistance remains elusive. Here Fourier Transform Infrared Spectroscopy implied that N-H, C = O and NH2-R played a crucial role in the adsorption and resistance of Ni2+ in the model organism Cuprividus pauculus 1490 (C. pauculus). Proteinase K treatment reduced Ni2+ resistance of C. pauculus underlining the essential role of e-PNs. Further three-dimension excitation-emission matrix fluorescence spectroscopy analysis demonstrated that tryptophan proteins as part of the e-PNs increased significantly with Ni2+ treatment. Proteomic and quantitative real-time polymerase chain reaction data indicated that major changes were induced in the metabolism of C. pauculus in response to Ni2+. Among those lipopolysaccharide biosynthesis, general secretion pathways, Ni2+-affiliated transporters and multidrug efflux play an essential role in Ni2+ resistance. Altogether the results provide a conceptual model for comprehending how e-PNs contribute to bacterial resistance and adsorption of Ni2+.
Project description:Comparison of fast Fourier-Transform Infrared Spectroscopy biotyping with Whole Genome Sequencing based genotyping in common nosocomial pathogens
| PRJEB51462 | ENA
Project description:Rapid Typing of Klebsiella pneumoniae and Pseudomonas aeruginosa by Fourier Transform InfraRed Spectroscopy Informs Infection Control in Veterinary Settings
Project description:In this study, we introduce for the first time a growth chamber system suitable for physical plasma treatment of bacteria in liquid medium. Bacillus subtilis 168 cells were treated with argon plasma in order to investigate their specific stress response usong a proteomic and transcriptomic approach. The treatment with three different discharge voltages revealed not only growth differences, but also clear cellular stress responses. B. subtilis faces severe cell wall stress, which was made visible alsoelectron microscopy, DNA damages and oxidative stress. The biological findings could be supported by the reactive plasma species, found by plasma diagnostics, i.e. optical emission spectroscopy (OES) and Fourier transformed infrared spectroscopy (FTIR).
2011-06-01 | GSE27113 | GEO
Project description:Use of a national repository of Fourier-transform infrared spectroscopy spectra enables fast detection of silent outbreaks and prevention of spread of new antibiotic-resistant sequence types
| PRJNA1170061 | ENA
Project description:The potential of Fourier-Transform Infrared Spectroscopy as a Rapid Screening Tool for Nosocomial Outbreaks of ST-80 Vancomycin-Resistant Enterococcus faecium
Project description:Evaluation of Fourier Transform Infrared spectroscopy (IR Biotyper) to characterise Enterobacter cloacae, Citrobacter freundii and Klebsiella pneumoniae isolates recovered from hospital sinks
