文献类型： 外文期刊
作者： Wang, Zhigang 1 ; Wang, Chunlong 1 ; You, Yimin 2 ; Xu, Weihui 1 ; Lv, Zhihang 1 ; Liu, Zeping 1 ; Chen, Wenjing 1 ; Shi, 1 ;
作者机构： 1.Qiqihar Univ, Sch Life Sci & Agr & Forestry, Qiqihar 161006, Heilongjiang, Peoples R China
2.Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China
3.Heilongjiang Acad Agr Sci, Qiqihar Branch, Qiqihar 161006, Heilongjiang, Peoples R China
关键词： Phthalic acid esters; RNA-Seq; Membrane damage; ATP-binding cassette; Two-component systems
期刊名称：ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY （ 影响因子：6.291； 五年影响因子：6.393 ）
ISSN： 0147-6513
年卷期： 2019 年 167 卷
页码：
收录情况： SCI
摘要： Dimethyl phthalate (DMP) is a ubiquitous pollutant that is very harmful to organisms due to its mutagenicity, teratogenicity and carcinogenicity. Pseudomonas fluorescens (P. fluorescens) is one of the most important bacteria in the environment. In this study, the response of P. fluorescens to DMP was investigated. It was found that DMP greatly inhibited the growth and glucose utilization of P. fluorescens when the concentration of DMP was ranged from 20 to 40 mg/l. The surface hydrophobicity and membrane permeability of P. fluorescens were also increased by DMP. DMP could lead to the deformations of cell membrane and the mis-opening of membrane channels. RNA-Seq and RT-qPCR results showed that the expression of some genes in P. fluorescens were altered, including the genes involved in energy metabolism, ATP-binding cassette (ABC) transporting and two-component systems. Additionally, the productions of lactic acid and pyruvic acid were reduced and the activity of hexokinase was inhibited in P. fluorescens by DMP. Clearly, the results suggested that DMP contamination could alter the biological function of P. fluorescens in the environment.
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