The pathway of breakdown of 2:4-dichloro- and 4-chloro-2-methyl-phenoxyacetic acid by bacteria.
The pathway of breakdown of 2:4-dichloro- and 4-chloro-2-methyl-phenoxyacetic acid by bacteria.
复制标题
细菌分解 2:4-二氯-和 4-氯-2-甲基-苯氧基乙酸的途径。
DOI：
10.1099/00221287-16-1-146
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发表时间：
1957
期刊：
影响因子：
--
通讯作者：
N. Walker
中科院分区：
文献类型：
--
作者：
T. Steenson;N. Walker
总结：一株黄杆菌和一株无色杆菌对2：4-二氯苯氧乙酸和4-氯-2-甲基苯氧乙酸的代谢，分别进行了研究。从年轻的文化细菌更活跃，比那些从老的氧化这些底物。证据表明，适应生物异化2：4-二氯苯氧乙酸通过2：4-二氯苯酚和4-氯邻苯二酚，和4-氯-2-甲基苯氧乙酸异化通过5-氯-2-甲酚。在2：4-二氯苯氧基乙酸上生长的细菌不氧化其他五种可能的异构体中的任何一种，但可以氧化2：4-二溴-、4-溴-2-氯-、4-氯-和在小程度上氧化2-氯苯氧基乙酸。
SUMMARY: The metabolism of 2:4-dichlorophenoxyacetic acid and 4-chloro-2-methylphenoxyacetic acid by a strain of Flavobacterium peregrinum and an Achromobacter sp., respectively, has been studied. Bacteria from young cultures were more active than those from older ones in oxidizing these substrates. Evidence is presented that adapted organisms dissimilate 2:4-dichlorophenoxyacetic acid through 2:4-dichlorophenol and 4-chlorocatechol, and that 4-chloro-2-methylphenoxyacetic acid is dissimilated through 5-chloro-2-cresol. Bacteria grown on 2:4-dichlorophenoxyacetic acid do not oxidize any of the other five possible isomers, but can oxidize 2:4-dibromo-, 4-bromo-2-chloro-, 4-chloro-, and, to a small extent, 2-chlorophenoxyacetic acids.