María Isabel Ramos-González

TL;DR: The number of efflux pump operons has been found to correlate with the degree of solvent tolerance in different P. putida strains, and the operation of these efflux pumps seems to be coupled to the proton motive force via the TonB system, although the intimate mechanism of energy transfer remains elusive.

TL;DR: Bacteria have developed a series of mechanisms at the membrane structure level to cope with high concentrations of solvents and desiccation tolerance is based on the synthesis and accumulation of osmoprotectants together with changes in fatty acid composition to preserve membrane structure.

TL;DR: The results show the importance of two selective forces of different nature to colonize the rhizosphere: stress adaptation and availability of particular nutrients.

TL;DR: By using in vivo expression technology (IVET) to positively select single cell survival, 28 rap genes (root-activated promoters) preferentially expressed in the maize rhizosphere were identified, which included genes with probable functions in the cell envelope, chemotaxis and motility, transport, secretion, DNA metabolism and defense mechanism, regulation, energy metabolism, stress, detoxification, and protein synthesis.

TL;DR: The role of the todXFC1C2BADEGIH operon in toluene metabolism was further confirmed in a todC1 mutant (generated by insertional inactivation), which was unable to use toLUene as the sole C-source.