Effects of Different Carrier Materials on the Degradation of Phenanthrene by Sphingobium sp. PHE3

doi:10.11766/trxb202202220071

Home > Archive>Volume 60, Issue 4, 2023 >1192-1202. DOI:10.11766/trxb202202220071

Effects of Different Carrier Materials on the Degradation of Phenanthrene by Sphingobium sp. PHE3
DOI:
                        10.11766/trxb202202220071
                    
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Author:
                        YIN YuanYIN Yuan
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;University of Chinese Academy of Sciences, Beijing 100049, China
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SHENG HongjieSHENG Hongjie
Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
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WANG ZiquanWANG Ziquan
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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XIANG LeileiXIANG Leilei
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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FU YuhaoFU Yuhao
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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BIAN YongrongBIAN Yongrong
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;University of Chinese Academy of Sciences, Beijing 100049, China
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JIANG XinJIANG Xin
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;University of Chinese Academy of Sciences, Beijing 100049, China
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WANG FangWANG Fang
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;University of Chinese Academy of Sciences, Beijing 100049, China
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Affiliation:
Clc Number:X53
Fund Project:Supported by the National Key Research and Development Program of China（Nos. 2020YFC1807000，2019YFC1804400，2019YFC1804203），the National Natural Science Foundation of China（Nos. 42007133，41977137，21906162），and the Natural Science Foundation of Jiangsu Province（No. BK20191107）

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Abstract:

To explore the effect of different carrier materials on microbial degradation of phenanthrene, the biodegradation of phenanthrene was investigated in the liquid phase by gram-negative bacteria Sphingobium sp. PHE3 immobilized on montmorillonite, goethite and maize straw-derived biochar. The results of scanning electron microscopy showed that there was the largest number of bacteria adhered to the surface of the biochar with the best morphology. The addition of montmorillonite and biochar significantly (P<0.05) improved the degradation rate of phenanthrene by microorganisms, as well as the increase of polysaccharide and protein production in bacterial extracellular polymeric substance (EPS). Nevertheless, there was no obvious effect on phenanthrene biodegradation and EPS production with the addition of goethite. Furthermore, quorum sensing might play a role in biofilm formation. The signal molecules C₈-HSL and C₁₂-HSL secreted by PHE3 might mediate the production of EPS and phenanthrene biodegradation to some extent.

Key words:Phenanthrene;Biodegradation;Carrier;Extracellular polymeric substance;N-acyl homoserine lactone

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YIN Yuan, SHENG Hongjie, WANG Ziquan, XIANG Leilei, FU Yuhao, BIAN Yongrong, JIANG Xin, WANG Fang. Effects of Different Carrier Materials on the Degradation of Phenanthrene by Sphingobium sp. PHE3[J]. Acta Pedologica Sinica,2023,60(4):1192-1202.

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Received:February 22,2022
Revised:April 20,2022
Adopted:June 23,2022
Online: July 12,2022
Published: July 28,2023

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