Bartholomew G W, Alexander M
Appl Environ Microbiol. 1979 May;37(5):932-7. doi: 10.1128/aem.37.5.932-937.1979.
Nocardia salmonicolor readily oxidized CO to CO2. Slight activity was found among species of Actinoplanes, Agromyces, Microbispora, Mycobacterium, and other nocardias, and no oxidation was detected in the algae, fungi, and other bacteria tested. Carbon monoxide was oxidized rapidly to CO2 in the dark in two soils incubated in air or under flooded conditions, but little of the 14C from 14CO was incorporated into the organic fraction of these soils. The reaction was microbial because appreciable CO was not converted to CO2 in autoclaved or gamma-irradiated soil. Heating the soil for 25 min at 70 degrees C destroyed its CO-oxidizing activity. The incorporation of 14CO2 into the cells of microorganisms in soil and soil suspension was not enhanced by incubating the samples in the presence of CO, suggesting that CO oxidation was not the result of autotrophic metabolism. The oxidation of 17 mu 1 of CO per liter in the head space was nearly complete in 6 h in soil incubated in air or anaerobically.
鲑鱼色诺卡氏菌能轻易地将一氧化碳氧化为二氧化碳。在游动放线菌属、土壤杆菌属、小双孢菌属、分枝杆菌属以及其他诺卡氏菌属的菌种中发现了微弱的活性，而在所测试的藻类、真菌和其他细菌中未检测到氧化现象。在空气或淹水条件下培养的两种土壤中，一氧化碳在黑暗中迅速被氧化为二氧化碳，但来自14CO的14C很少被纳入这些土壤的有机部分。该反应是微生物介导的，因为在高压灭菌或γ射线辐照的土壤中，没有可观的一氧化碳转化为二氧化碳。将土壤在70摄氏度下加热25分钟会破坏其一氧化碳氧化活性。在一氧化碳存在的情况下培养样品，并未增强14CO2纳入土壤和土壤悬浮液中微生物细胞的能力，这表明一氧化碳氧化不是自养代谢的结果。在空气或厌氧条件下培养的土壤中，每升顶空17微升一氧化碳的氧化在6小时内几乎完成。
