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Cited by 21Microbial bioremediation and biosurfactantsEnvironmental Chemistry and AnalysisSteroid Chemistry and Biochemistry

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Synergistic Effect of Rhamnolipids and Inoculation on the Bioremediation of Petroleum-Contaminated Soils by Bacterial Consortia

Xue, Shu-wen, Huang, Chao, Tian, Yue-xin, Li, Yan-bing, Li, Jing, Ma, Yan-ling·2020·Current Microbiology
DOI 10.1007/s00284-020-01899-3
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Abstract

Crude oil is a serious soil pollutant, requiring large-scale remediation efforts. Bacterial consortia in combination with rhamnolipids can be an effective bioremediation method. However, the underlying mechanisms and associated changes in soil bacterial composition remain uncharacterized. Therefore, this study sought to evaluate the effectiveness of rhamnolipids in petroleum hydrocarbon removal, and the associated bacterial community dynamics during bioremediation of petroleum-contaminated soils. Contaminated soils were subjected to natural attenuation, bioremediation with rhamnolipids, bioremediation with bacterial consortia, or bioremediation with bacterial consortia supplemented with rhamnolipids (BMR). High-throughput sequencing of bacterial sample partial 16S rRNA sequences was performed. Additionally, the n-alkanes and aromatic fractions were analyzed by gas chromatography-mass spectroscopy. The results showed that rhamnolipid supplementation increased the rate and extent of total petroleum hydrocarbon biodegradation to a maximum of 81% within 35 days. Further, phylogenetic analysis revealed that the bacterial community was composed of 14 phylotypes (similarity level = 97%). Actinobacteria and Proteobacteria were the two core phyla in all samples, accounting for 63-89%, but Proteobacteria was the most dominant phylum in the BMR sample (~ 53%). Among the top 20 genera, Pseudomonas, Pseudoxanthomonas, Cavicella, Mycobacterium, Rhizobium, and Acinetobacter were more abunda…

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Metadata

Authors
Xue, S.-W., Huang, C., Tian, Y.-X., Li, Y.-B., Li, J., & Ma, Y.-L.
Affiliations
Northwest University (CN)
ORCID
Venue
Current Microbiology
Publisher
Springer Science and Business Media LLC
Published
2020-01-30
Volume
77
Issue
6
Pages
997-1005
ISSN
  • 0343-8651 (ISSN-L)
  • 1432-0991
DOI
10.1007/s00284-020-01899-3
OpenAlex
W3003862469
Cited by
21
References
0
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2023: 6 · 2022: 4 · 2021: 3 · 2020: 1
FWCI
0.86
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Current Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • the National Natural Science Foundation of China (31000069)
  • the Key Project on Social Development of Science and Technology in Shaanxi Province (Grant No. 2017ZDXM-SF-102)
Topics
  • Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
  • Physical Sciences › Chemistry › Organic Chemistry › Steroid Chemistry and Biochemistry
Keywords
rhamnolipids, oil-contaminated soil, bioremediation, bacterial consortium, petroleum hydrocarbon biodegradation, synergistic effect, Proteobacteria, Pseudomonas, n-alkanes, aromatic hydrocarbons, natural attenuation
MeSH terms
Bacteria, Biodegradation, Environmental, Glycolipids, Hydrocarbons, Petroleum, Phylogeny, RNA, Ribosomal, 16S, Soil Microbiology, Soil Pollutants, Metabolic Networks and Pathways, Microbial Consortia

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