A New Approach of Rpf Addition to Explore Bacterial Consortium for Enhanced Phenol Degradation Under High Salinity Conditions
A New Approach of Rpf Addition to Explore Bacterial Consortium for Enhanced Phenol Degradation Under High Salinity Conditions
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添加 Rpf 探索细菌聚体在高盐度条件下增强苯酚降解的新方法
DOI：
10.1007/s00284-018-1489-x
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发表时间：
2018-04
影响因子：
2.6
通讯作者：
Su Xiaomei
中科院分区：
文献类型：
--
作者：
Li Ziqiao;Zhang Yunge;Wang Yuyang;Mei Rongwu;Zhang Yu;Hashmi Muhammad Zaffar;Lin Hongjun;Su Xiaomei
摘要由于自然界中大多数细菌处于活的但不可培养的状态（VBNC），传统的平板分离方法只能分离到一小部分耐盐苯酚降解菌。本研究的目的是筛选出更有效的复苏促进因子（Rpf）的功能菌，并确定混合菌群是否具有更好的苯酚降解能力在高盐度条件下。结果表明，获得了添加Rpf的处理组特有的三个菌株。由芽孢杆菌属（Bacillus）和棒状杆菌属（Corynebacterium）2株高效菌株组成的混合菌群，在高盐条件下能够利用苯酚作为唯一碳源。在2%NaCl溶液中，苯酚的降解速率为100 mg/L，降解时间为8 h。这项研究为VBNC细菌的复苏提供了新的见解，用于强化含酚含盐废水的处理。图形摘要
AbstractOnly a small fraction of salt-tolerant phenol-degrading bacteria can be isolated by conventional plate separation methods, because most bacteria in nature are in a viable but non-culturable (VBNC) state. The aims of this study were to screen out more effective functional bacteria using resuscitation-promoting factor (Rpf), and to determine whether a mixed bacterial consortium possesses better phenol-degrading capabilities under high salinity conditions. The results indicated that three strains unique to treatment group with Rpf addition were obtained. A mixed bacterial consortium consisting of two high-efficient strains which belonged to generaBacillusandCorynebacteriumwas capable of utilizing phenol as a sole source of carbon at high salinity. Complete degradation of 100 mg/L phenol at 2% NaCl concentration was achieved within 8 h. This study provides new insights into resuscitation of VBNC bacteria for enhanced treatment of phenol-laden saline wastewater.Graphical Abstract
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