bacteriology article 8 Bacteria (microorganisms) 6 Escherichia coli 6 nonhuman 6 recombination 6 Aerobiosis 4 ArcA mutants 4 Arca 4 Azotobacter 4 Azotobacter FA8 4 Bacterial Outer Membrane Proteins 4 Biomass 4 Cell culture 4 Culture Media 4 Escherichia coli Proteins 4 Gene Expression Regulation, Bacterial 4 Hydroxybutyrates 4 Leaky mutation 4 Microaerobiosis 4 Mutagenesis 4 Mutation 4 Organic polymers 4 Poly(3-hydroxybutyrate) synthesis 4 Polyesters 4 Recombination, Genetic 4 Repressor Proteins 4 Strain 4 Synthesis (chemical) 4 aerobic metabolism 4