Carmen Fischer-Romero's research while affiliated with University of Zurich and other places

Publications (4)

Chapter
To.lu.mo' nas. L. n. toluolum toluol (German for toluene); Gr. n. monas unit; M.L. fem. n. Tolumonas toluene-producing unit. Proteobacteria / Gammaproteobacteria / Aeromonadales / Aeromonadaceae / Incertae Sedis Tolumonas Cells are nonmotile, Gram-negative rods (2.5–3.2 × 0.9–1.2 µm) that occur singly or in pairs. Growth occurs under aerobic and an...
Article
We have developed an assay based on a 16S rDNA broad-range amplification system followed by species-specific detection with a commercially available PCR-ELISA kit. B. burgdorferi and S. pneumoniae were used as model systems for arthritis and meningitis, respectively. The sensitivity of the B. burgdorferi assay was comparable to that of a species-sp...
Article
Lake Cadagno is a meromictic lake of 21-m depth in the central Swiss Alps at 1,923 m asl. Its mixolimnion reaches from the surface down to 10-m depth. A dense population of phototrophic bacteria dominated by Chromatium okenii is located in the subsequent 2-m layer containing up to 200 mg bacteriochlorophyll (Bchl) m-3. Maximum cell concentration wa...
Article
A new toluene-producing bacterium, strain TA 4T (T = type strain), was isolated from anoxic sediments of a freshwater lake. The individual cells of this organism were nonmotile, gram-negative rods that were 0.9 to 1.2 by 2.5 to 3.2 microns. The optimum temperature and pH for growth were 22 degrees C and pH 7.2, respectively. The G+C content of the...

Citations

... Euxinic lakes and restricted basins provide additional archives for studying complex interplays of organic matter and inorganic sulfur by deciphering the information hidden in sulfurized compounds. For instance, Lake Cadagno, a permanently stratified meromictic lake in Switzerland, features purple-red colored chemocline with a dense population of PSB, as revealed by genomic sequencing ( Düggeli, 1924 ;Peduzzi et al., 2003 ;Schanz et al., 1998 ). However, aromatic carotenoids extracted from Lake Cadagno sediments exhibit inconsistent information to those by genomes since extracted free lipids are devoid of PSB-specific okenone biomarker. ...
... Tolumonas, the genus with the highest relative abundance at 5 gCOD.L -1 .d -1 (23.81%), are known to produce HAc, ethanol, and formic acid from glucose fermentation (Caldwell et al., 2011;Fischer-Romero et al., 1996), metabolites that can later be converted to CH 4 . However, lower MY (219.6 ± 70.0 mL CH 4 .gCOD ...
... According to this accurate assessment, at estimated concentration of 0.63 ng/µl of mouse gastric tissue DNA, HpDNA could be fully quantitated by qPCR. This finding is of particular importance when the ratio of HpDNA to MgDNA is at minimal levels [3,19,20] . ...