You I S, Bartha R
Appl Environ Microbiol. 1982 Sep;44(3):678-81. doi: 10.1128/aem.44.3.678-681.1982.
Mineralization of free and of humus-bound 3,4-dichloroaniline (DCA) by a Pseudomonas putida strain isolated by analog enrichment was greatly enhanced in the presence of aniline. The addition of aniline to soil that contained 0.2 to 100 micrograms of DCA per g in free or in humus-bound form increased the mineralization rates of DCA severalfold. Within the concentration ranges tested, absolute mineralization of DCA per unit time was positively correlated with both increasing DCA and increasing aniline concentrations. The specific enrichment of microbial populations and the induction of pathways that can co-metabolize DCA are the most plausible explanations for the effect of aniline. The observed phenomenon points to a potential approach for eliminating xenobiotic pollutants from contaminated soils.
通过类似物富集分离得到的恶臭假单胞菌菌株对游离态和腐殖质结合态的3,4-二氯苯胺(DCA)的矿化作用在苯胺存在的情况下大大增强。向每克含有0.2至100微克游离态或腐殖质结合态DCA的土壤中添加苯胺,可使DCA的矿化速率提高数倍。在所测试的浓度范围内,单位时间内DCA的绝对矿化量与DCA浓度增加和苯胺浓度增加均呈正相关。微生物种群的特异性富集以及可共代谢DCA的途径的诱导是对苯胺作用最合理的解释。观察到的现象指出了一种从污染土壤中消除外来污染物的潜在方法。