Bonin P, Bertrand J C
Laboratoire d'Océanologie et de Biogeochimie-UMR 6535, Centre d'Océanologie de Marseille OSU-CNRS, Campus de luminy, France.
Chemosphere. 2000 Nov;41(9):1321-6. doi: 10.1016/s0045-6535(00)00017-5.
The influence of different states of oxygen supply on heptadecane mineralization has been investigated in resting cell suspensions of Pseudomonas nautica. The rate of heptadecane biodegraded was constant for oxygen concentrations between 21% and 10% (v/v) (about 100% and 50% of air saturation, 230 and 110 microM, respectively). A decline in biodegradation rates occurred for oxygen concentrations below 10% (about 50% of air saturation, 110 microM) and biodegradation stopped with 0.21% oxygen (2.3 microM). In the presence of 1% (11 microM) of oxygen, no CO2 was produced, showing that complete mineralisation of heptadecane was blocked.
在海洋假单胞菌的静止细胞悬液中，研究了不同供氧状态对十七烷矿化作用的影响。在氧气浓度为21%至10%（v/v）之间（分别约为空气饱和度的100%和50%，即230和110微摩尔）时，十七烷的生物降解速率是恒定的。当氧气浓度低于10%（约为空气饱和度的50%，110微摩尔）时，生物降解速率下降，而当氧气浓度为0.21%（2.3微摩尔）时，生物降解停止。在存在1%（11微摩尔）氧气的情况下，没有产生二氧化碳，这表明十七烷的完全矿化受到了阻碍。
