寡养单胞菌
生物降解
鞘脂单胞菌属
假单胞菌
化学
细菌
食品科学
嗜麦芽窄食单胞菌
微生物联合体
细菌生长
微生物学
多环芳烃
微生物种群生物学
肠杆菌
环境化学
生物
铜绿假单胞菌
微生物
生物化学
有机化学
大肠杆菌
基因
遗传学
作者
Natalia González,Raquel Simarro,Marı́a Molina,Luis Fernando Bautista,L. Vizcaya Delgado,Jorge A. Villa
标识
DOI:10.1016/j.biortech.2011.07.066
摘要
The aim of this work was to evaluate the effect of a non-biodegradable (Tergitol NP-10) and a biodegradable (Tween-80) surfactant on growth, degradation rate and microbial dynamics of a polycyclic aromatic hydrocarbon (PAHs) degrading consortium (C2PL05) from a petroleum polluted soil, applying cultivable and non cultivable techniques. Growth and degradation rate were significantly lower with Tergitol NP-10 than that with Tween-80. Toxicity did not show any significant reduction with Tergitol NP-10 whereas with Tween-80 toxicity was almost depleted (30%) after 40 days. Regarding to the cultured bacteria, Pseudomonas and Stenotrophomonas groups were dominant during PAH degradation with Tergitol NP-10, whereas Enterobacter and Stenotrophomonas were dominant with Tween-80. DGGE analyses (PRIMER and MDS) showed that bacteria composition was more similar between treatments when PAHs were consumed than when PAHs concentration was still high. Community changes between treatments were a consequence of Pseudomonas sp., Sphingomonas sp., Sphingobium sp. and Agromonas sp.
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