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Shifts in indigenous microbial communities during the anaerobic degradation of pentachlorophenol in upland and paddy soils from southern China

文献类型： 外文期刊

作者： Chen, Yating 1 ; Tao, Liang 2 ; Wu, Ke 2 ; Wang, Yongkui 2 ;

作者机构： 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China

2.Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China

3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

4.Hunan Normal Univ, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China

关键词： Subtropical soils;Land use type;Microbial degradation;High-throughput sequencing;Indigenous microorganisms;Acinetobacter

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

ISSN： 0944-1344

年卷期： 2016 年 23 卷 22 期

页码：

收录情况： SCI

摘要： Pentachlorophenol (PCP) is a common persistent pesticide in soil that has generated a significant environmental problem worldwide. Therefore, anaerobic degradation of PCP by the soil indigenous microbial community has gained increasing attention. However, little information is available concerning the functional microorganisms and the potential shifts in the microbial community associated with PCP degradation. In this study, we conducted a set of experiments to determine which components of the indigenous microbial community were capable of degrading PCP in soils of two land use types (upland and paddy soils) in southern China. Our results showed that the PCP degradation rate was significantly higher in paddy soils than that in upland soils. 16S ribosomal RNA (rRNA) high-throughput sequencing revealed significant differences in microbial taxonomic composition between the soil with PCP and blank (soil without PCP) with Acinetobacter, Clostridium, Coprococcus, Oxobacter, and Sedimentibacter dominating the PCP-affected communities. Acinetobacter was also apparently enriched in the paddy soils with PCP (up to 52.2 %) indicated this genus is likely to play an important role in PCP degradation. Additionally, the Fe(III)-reducing bacteria Clostridium may also be involved in PCP degradation. Our data further revealed hitherto unknown metabolisms of potential PCP degradation by microorganisms including Coprococcus, Oxobacter, and Ruminiclostridium. Overall, these findings indicated that land use types may affect the PCP anaerobic degradation rate via the activities of indigenous bacterial populations and extend our knowledge of the bacterial populations responsible for PCP degradation.

  • 相关文献

[1]Reductions of Fe(III) and pentachlorophenol linked with geochemical properties of soils from Pearl River Delta. Chen, Manjia,Tao, Liang,Li, Fangbai,Lan, Qing. 2014

[2]Identification of miRNAs involved in fruit ripening in Cavendish bananas by deep sequencing. Bi, Fangcheng,Meng, Xiangchun,Yi, Ganjun,Bi, Fangcheng,Meng, Xiangchun,Yi, Ganjun,Bi, Fangcheng,Meng, Xiangchun,Yi, Ganjun,Ma, Chao. 2015

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