Open AccessVariation of microbial community structure in a simulated remediation process of BDE-47-contaminated soil
Author(s) -
Jian Guan,
J H Wang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/344/1/012131
Subject(s) - gemmatimonadetes , firmicutes , acidobacteria , proteobacteria , actinobacteria , microbial population biology , bacteroidetes , environmental remediation , biology , ecology , environmental science , environmental chemistry , chemistry , contamination , bacteria , 16s ribosomal rna , genetics
As a kind of persistent organic matter, it is important to study the effects of 2,2’,4,4’-tetrabromobiphenyl ether (BDE-47) on microbial ecology in soil. The Illumina Miseq high-throughput sequencing technique was used to study the effects of pollutants and degrading bacteria on the microbial community structures in indoor simulated remediation of BDE-47-contaminated soil. The correlation between the microbial community structures and physiochemical properties of the soil was analyzed. The results showed that the addition of pollutant BDE-47 no significant effect on the number of microbial species, and the diversity of species reduced slightly. In contrast, the addition of degrading bacteria led to a dramatic decrease of both the species number and diversity. After the simulation, the degree of variation in microbial community structural composition was ranked as: simulation system E > C > A. The simulated systems included 27 microbial phyla, among which Acidobacteria, Proteobacteria, and Actinobacteria were the most dominant with a relative abundance of greater than 10%. Firmicutes was the common phylum in simulated systems A and C and was dominant in the system E. The distributions of Nitrospirae, Bacteroidetes, Saccharibacteria, Proteobacteria, and Gemmatimonadetes were similar. The distribution of Firmicutes was irrelevant to the physicochemical properties of soil.