Bioaugmentation involving a bacterial consortium isolated from the rhizosphere of Spirodela polyrhiza for treating water contaminated with a mixture of four nitrophenol isomers
Bioaugmentation involving a bacterial consortium isolated from the rhizosphere of Spirodela polyrhiza for treating water contaminated with a mixture of four nitrophenol isomers
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DOI：
10.1039/c3ra44892d
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发表时间：
2014-01-01
期刊：
影响因子：
3.9
通讯作者：
Mori, Kazuhiro
中科院分区：
文献类型：
--
作者：
Kristanti, Risky Ayu;Toyama, Tadashi;Mori, Kazuhiro
通过将3株硝基苯酚降解菌（假单胞菌属菌株MFR-1、假单胞菌属菌株PFR-1和红球菌属菌株DFR-1）重新接种到多根螺旋藻（Spirophylolyrhiza）的根部，进行了烧瓶规模的实验室研究，以评估对2-硝基苯酚、3-硝基苯酚、4-硝基苯酚和2，4-二硝基苯酚混合污染的水的生物强化作用。将选择的菌株以约10（4）至10（6）个菌落形成单位（CFU/植物）定殖到根中。高人口保持稳定，通过五个连续的两天的降解周期，并在五个重复的周期内实现完全硝基苯酚去除。因此，接种到水生植物的根降解受硝基酚污染的废水或水生资源是一种有效的处理。
A flask-scale laboratory study was performed to assess the bioaugmentation of water contaminated with a mixture of 2-nitrophenol, 3-nitrophenol, 4-nitrophenol and 2,4-dinitrophenol by using a bacteria consortium consisting of three nitrophenol-degrading bacteria strains (Pseudomonas sp. strain MFR-1, Pseudomonas sp. strain PFR-1 and Rhodococcus sp. strain DFR-1), reinoculated into the roots of Spirodela polyrhiza. The selected strains were colonized into the root at approximately 10(4) to 10(6) colony-forming units (CFU per plant). The high populations remained stable through five sequential two-days degradation cycles and complete nitrophenol removal was achieved within five-repeated cycles. Hence, inoculation of subjected degraders into the roots of aquatic plants is an effective treatment for nitrophenol-contaminated effluents or aquatic resources.