Wong H C, Allenza P, Lessie T G
J Bacteriol. 1980 Oct;144(1):441-3. doi: 10.1128/jb.144.1.441-443.1980.
Growth of Pseudomonas cepacia 249 on D-threonine required a mutation to permit D-hydroxyamino acid deaminase formation and L-valine to overcome alpha-ketobutyrate toxicity. Strain 249 lacked a second D-hydroxyamino acid deaminase formed by other strains.
洋葱伯克霍尔德菌249在D-苏氨酸上生长需要一个突变以允许形成D-羟基氨基酸脱氨酶,并且需要L-缬氨酸来克服α-酮丁酸的毒性。菌株249缺乏其他菌株所形成的第二种D-羟基氨基酸脱氨酶。