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假单胞菌属对烷基苯磺酸盐的降解作用

Degradation of alkyl benzene sulfonate by Pseudomonas species.

作者信息

Horvath R S, Koft B W

出版信息

Appl Microbiol. 1972 Feb;23(2):407-14. doi: 10.1128/am.23.2.407-414.1972.

Abstract

Pseudomonas sp. HK-1 showed a direct relation between the concentration of alkyl benzene sulfonate (ABS) supplied and cell yields. Since growth on ABS alone did not occur, it was necessary to correlate the total energy obtained by the cells to the ABS concentration when glucose was supplied in a limiting concentration. Several types of metabolic attack in addition to the sulfonate removal were noted: (i) side-chain utilization as indicated by the production of tertiarybutyl alcohol and isopropanol and (ii) ring metabolism as indicated by the presence of phenol, catechol, mandelic acid, benzyl alcohol, and benzoic acid in spent growth media. Utilization of ABS was greatly enhanced by the presence of phenol. This enhancement suggests co-metabolism and that limited concentrations of phenolic products derived from ABS must be accumulated to get active metabolism of the ABS molecule.

摘要

假单胞菌属HK-1显示出所供应的烷基苯磺酸盐(ABS)浓度与细胞产量之间存在直接关系。由于仅在ABS上无法生长,因此当以有限浓度供应葡萄糖时,有必要将细胞获得的总能量与ABS浓度相关联。除了磺酸盐去除外,还注意到几种类型的代谢攻击:(i)如叔丁醇和异丙醇的产生所示的侧链利用,以及(ii)如在用过的生长培养基中存在苯酚、儿茶酚、扁桃酸、苯甲醇和苯甲酸所示的环代谢。苯酚的存在极大地增强了ABS的利用。这种增强表明存在共代谢,并且必须积累有限浓度的源自ABS的酚类产物才能使ABS分子进行活跃代谢。

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