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Resources » Paper

Zhou J et al. (2018) Environ Sci Pollut Res Int "Effects of bacterial-feeding nematodes and organic matter on microbial activity and oil degradation in contaminated soil."

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  • Comments on Zhou J et al. (2018) Environ Sci Pollut Res Int "Effects of bacterial-feeding nematodes and organic matter on microbial activity and oil degradation in contaminated soil." (0)

  • Overview

    PMID:
    30353434
    DOI:
    10.1007/s11356-018-3460-6
    Status:
    Publication type:
    Journal_article
    WormBase ID:
    WBPaper00056396

    Zhou J, Huang R, Cheng S, Tang J, & Fan H (2018). Effects of bacterial-feeding nematodes and organic matter on microbial activity and oil degradation in contaminated soil. Environ Sci Pollut Res Int, 25, 35614-35622. doi:10.1007/s11356-018-3460-6

    Increasing rates of oil exploitation and utilization are associated with increasing rates of oil pollution in soil. Nematodes are abundant in soils with or without oil contamination, among which bacterial-feeding nematodes are the dominant group. However, their function in oil-contaminated soil is unclear. This study explores the effects of bacterial-feeding nematode and organic matter addition on microbial activity and oil degradation in contaminated soil. Experiments were conducted using six treatments of oil-contaminated soil: sterilized (Control), nematode-free (OC), nematode addition (OCN), nematode + wheat straw addition (OCNW), nematode + rapeseed cake addition (OCNR), and nematode + biochar addition (OCNB). At the end of a 168-day incubation experiment, the oil concentration of OCN soil was 26.77% lower than that of OC soil, and those of OCNW, OCNR, and OCNB were 12.83%, 27.81%, and 4.77% lower, respectively, than that of OCN soil. Over the experiment, soil microbial biomass carbon, fluorescein diacetate hydrolysis activity, and dehydrogenase activity increased by 4.35-382.30%, 1.75-302.22%, and -2.73-224.55%, respectively, in oil-contaminated soils, with or without nematode and organic matter addition. These results suggest that the addition of organic matter and bacterial-feeding nematodes to oil-contaminated soil can promote the growth and activity of microorganisms that break down oil.


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