Alphaproteobacteria 1 Biofuel production 1 Biofuel synthesis 1 Biofuels 1 Cellulosic ethanol 1 Comprehensive comparisons 1 DNA 1 Efficiency 1 Electroporation Ethanol production 1 Lignocellulosic biomass 1 Lignocellulosic hydrolysates 1 Sequence similarity 1 Xylose utilizations 1 Zymomonas 1 Zymomonas mobilis 1 bacterium 1 biofuel 1 ethanol 1 genetic engineering 1 genome 1 species diversity 1