The conversion of the nutrient condition alter the phenol degradation pathway by Rhodococcus biphenylivorans B403: A comparative transcriptomic and proteomic approach

Xie, Xiaohang; Liu, Jiashu; Jiang, Zhengbing; Li, Huanan; Ye, Meng; Hong, Pan; Zhu, Jingwei; Song, Huiting

doi:10.1007/s11356-021-14374-8

Cited by 7 publications

(2 citation statements)

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“…Phenolic compounds are considered major environmental pollutants originating from numerous industrial processes such as manufacturing of pulp and paper, dyes and textiles, fertilizers and pesticides, processing of leather and coal, as well as in steel and oil refineries and pharmaceutical industries [ 1 , 2 , 3 , 4 , 5 ]. These compounds are considered to be major toxic pollutants, even at low concentrations, posing an ecological threat and endangering human life through their bioaccumulation in the environment [ 1 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

“…These compounds are considered to be major toxic pollutants, even at low concentrations, posing an ecological threat and endangering human life through their bioaccumulation in the environment [ 1 , 6 ]. Furthermore, phenolic compounds can deter plant and animal growth, while acute or chronic exposure to them can adversely affect human health, with serious impacts on the body’s systems and functions, including the nervous, immune, and respiratory systems, causing several deficiencies and occasionally leading even to cancer [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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Phenol Degradation by Pseudarthrobacter phenanthrenivorans Sphe3

et al. 2023

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Phenol poses a threat as one of the most important industrial environmental pollutants that must be removed before disposal. Biodegradation is a cost-effective and environmentally friendly approach for phenol removal. This work aimed at studying phenol degradation by Pseudarthrobacter phenanthrenivorans Sphe3 cells and also, investigating the pathway used by the bacterium for phenol catabolism. Moreover, alginate-immobilized Sphe3 cells were studied in terms of phenol degradation efficiency compared to free cells. Sphe3 was found to be capable of growing in the presence of phenol as the sole source of carbon and energy, at concentrations up to 1500 mg/L. According to qPCR findings, both pathways of ortho- and meta-cleavage of catechol are active, however, enzymatic assays and intermediate products identification support the predominance of the ortho-metabolic pathway for phenol degradation. Alginate-entrapped Sphe3 cells completely degraded 1000 mg/L phenol after 192 h, even though phenol catabolism proceeds slower in the first 24 h compared to free cells. Immobilized Sphe3 cells retain phenol-degrading capacity even after 30 days of storage and also can be reused for at least five cycles retaining more than 75% of the original phenol-catabolizing capacity.

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