Adaptation, Physiological Antarctic Regions Antarctica Article Cold Temperature Genes, Bacterial Glycosyltransferases Lipopolysaccharides Pseudomonas Pseudomonas extremaustralis Real-Time Polymerase Chain Reaction acclimatization adaptation bacterial gene bacterial growth bacterial strain cell flexibility cell function cell interaction cell membrane permeability cold cold acclimatization cold shock response controlled study enzymology genetics glycosyltransferase limit of quantitation lipopolysaccharide low temperature