Nonylphenol biodegradation in river sediment and associated shifts in community structures of bacteria and ammonia-oxidizing microorganisms.
Nonylphenol (NP) is one of commonly detected contaminants in the environment. Biological degradation is mainly responsible for remediation of NP-contaminated site. Knowledge about the structure of NP-degrading microbial community is still very limited. Microcosms were constructed to investigate the structure of microbial community in NP-contaminated river sediment and its change with NP biodegradation. A high level of NP was significantly dissipated in 6-9 days. Bacteria and ammonia-oxidizing archaea (AOA) were more responsive to NP amendment compared to ammonia-oxidizing bacteria (AOB). Gammaproteobacteria, Alphaproteobacteria and Bacteroidetes were the largest bacterial groups in NP-degrading sediment. Microorganisms from bacterial genera Brevundimonas, Flavobacterium, Lysobacter and Rhodobacter might be involved in NP degradation in river sediment. This study provides some new insights towards NP biodegradation and microbial ecology in NP-contaminated environment.
College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences (Ministry of Education), Peking University, Beijing 100871, China.
Zhao
Z
Wang
College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences (Ministry of Education), Peking University, Beijing 100871, China.
Yuyin
Y
Yang
Department of Environmental Science, Rutgers University, New Brunswick, NJ 08901, USA.
Weimin
W
Sun
College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences (Ministry of Education), Peking University, Beijing 100871, China. Electronic address: xiesg@pku.edu.cn.
Shuguang
S
Xie
College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences (Ministry of Education), Peking University, Beijing 100871, China. Electronic address: yongliu@pku.edu.cn.
Yong
Y
Liu
D001105:Archaea / Q000145:classification / Q000187:drug effects* / Q000378:metabolism*; D001419:Bacteria / Q000145:classification / Q000187:drug effects* / Q000378:metabolism*; D001673:Biodegradation, Environmental; D044822:Biodiversity; D010084:Oxidation-Reduction; D010636:Phenols / Q000378:metabolism*; D045483:Rivers / Q000382:microbiology*
D010636:Phenols; C025256:nonylphenol
Ammonia-oxidizing archaea (AOA); Ammonia-oxidizing bacteria (AOB); Biodegradation; Microbial community; Nonylphenol; Sediment