Luna María F, Bernardelli Cecilia E, Mignone Carlos F, Boiardi José L
CINDEFI, Facultad de Ciencias Exactas, Universidad Nacional de La Plata-CONICET, 1900 La Plata, Argentina.
Appl Environ Microbiol. 2002 Apr;68(4):2054-6. doi: 10.1128/AEM.68.4.2054-2056.2002.
Gluconacetobacter diazotrophicus PAL3 was grown in a chemostat with N(2) and mixtures of xylose and gluconate. Xylose was oxidized to xylonate, which was accumulated in the culture supernatants. Biomass yields and carbon from gluconate incorporated into biomass increased with the rate of xylose oxidation. By using metabolic balances it is demonstrated that extracellular xylose oxidation led N(2)-fixing G. diazotrophicus cultures to increase the efficiency of energy generation.
固氮葡糖醋杆菌PAL3在装有氮气以及木糖和葡萄糖酸盐混合物的恒化器中培养。木糖被氧化为木糖酸盐,并积累在培养上清液中。生物质产量以及葡萄糖酸盐中并入生物质的碳随着木糖氧化速率的增加而增加。通过代谢平衡表明,细胞外木糖氧化使固氮葡糖醋杆菌培养物提高了能量产生效率。