title: Fifteen years of physiological proteo(geno)mics with (marine) environmental bacteria.
abstract: Environmental bacteria play a central role in the Earth's elemental cycles and represent a mostly untapped reservoir for novel metabolic capacities and biocatalysts. Over the last 15 years, the author's laboratory has focused on three major switches in the breakdown of organic carbon defined by the abundance and recalcitrance of the substrates: carbohydrates and amino acids by aerobic heterotrophs, fermentation end products by sulphate reducers and anaerobic degradation of aromatic compounds and hydrocarbons by denitrifiers and sulphate reducers. As these bacteria are novel isolates mostly not accessibly by molecular genetics, genomics combined with differential proteomics was early on applied to obtain molecular-functional insights into degradation pathways, catabolic and regulatory networks, as well as mechanisms and strategies for adapting to changing environmental conditions. This review provides some background on research motivations and briefly summarizes insights into studied model organisms, e.g. "Aromatoleum aromaticum" EbN1, Desulfobacula toluolica Tol2 and Phaeobacter inhibens DSM 17395.
authors.affiliation: General and Molecular Microbiology, Institute for Chemistry and Biology of the Marine Environment (ICBM), University Oldenburg , Oldenburg , Germany.
authors.forename: R
authors.initials: R
authors.lastname: Rabus
mesh_terms: D000332:Aerobiosis; D059001:Aquatic Organisms / Q000378:metabolism*; D001419:Bacteria / Q000378:metabolism*; D004777:Environment; D006838:Hydrocarbons / Q000378:metabolism; D040901:Proteomics / Q000379:methods*
chemical_list: D006838:Hydrocarbons
keywords: Carbon cycle; degradation; genomics; metabolic reconstruction; microbiology; physiology; proteomics