Marine harbor sediments are frequently polluted with significant amount of polycyclic aromatic hydrocarbons (PAHs) some of which are naturally toxic, recalcitrant, mutagenic, and carcinogenic. To stimulate biodegradation of PAHs in PAH-contaminated sediments collected from near Gwangyang Bay, Korea, lactate was chosen as a supplementary carbonaceous substrate. Sediment packed into 600 ml air-tight jar was either under no treatment condition or lactate amended condition (1%, w/v). Microbial community composition was monitored by bacteria-specific and archaea-specific PCR-terminal restriction fragment length polymorphism (T-RFLP), in addition to measuring the residual PAH concentration. Results showed that lactate amendment enhanced biodegradation rate of PAHs in the sediment by 4 to 8 times, and caused a significant shift in archaebacterial community in terms of structure and diversity with time. Phylogenetic analysis of 23 archaeal clones with distinctive RFLP patterns among 288 archaeal clones indicated that majority of the archaeal members were closest to unculturable environmental rDNA clones from hydrocarbon-contaminated and/or methanogenesis-bearing sediments. Lactate amendment led to the enrichment of some clones that were most closely related to PAH-degrading Methanosarcina species. These results suggest a possible contribution of methanogenic community to PAH degradation and give us more insights on how to effectively remediate PAH-contaminated sediments.
Citations
Citations to this article as recorded by
Effects of electron acceptors and donors on anaerobic biodegradation of PAHs in marine sediments Qingguo Chen, Zhenzhen Li, Yu Chen, Mei Liu, Qiao Yang, Baikang Zhu, Jun Mu, Lijuan Feng, Zhi Chen Marine Pollution Bulletin.2024; 199: 115925. CrossRef
Electrical current generation from a continuous flow macrophyte biocathode sediment microbial fuel cell (mSMFC) during the degradation of pollutants in urban river sediment Felix Tetteh Kabutey, Jing Ding, Qingliang Zhao, Philip Antwi, Frank Koblah Quashie Environmental Science and Pollution Research.2020; 27(28): 35364. CrossRef
Application of in situ Solid-Phase Microextraction on Mediterranean Sponges for Untargeted Exometabolome Screening and Environmental Monitoring Barbara Bojko, Bora Onat, Ezel Boyaci, Eleftheria Psillakis, Thanos Dailianis, Janusz Pawliszyn Frontiers in Marine Science.2019;[Epub] CrossRef
Effect of carbonyl cyanide m-chlorophenylhydrazone (CCCP) on microbial activity and polycyclic aromatic hydrocarbons (PAH) degradation in contaminated river sediments G. Patricia Johnston, Z. Kalik, C. G. Johnston Environmental Earth Sciences.2016;[Epub] CrossRef
Effects of polycyclic aromatic hydrocarbons on microbial community structure and PAH ring hydroxylating dioxygenase gene abundance in soil Przemyslaw Sawulski, Nicholas Clipson, Evelyn Doyle Biodegradation.2014; 25(6): 835. CrossRef
Anthracene biodegradation under nitrate-reducing condition and associated microbial community changes Ying Wang, Rui Wan, Shuying Zhang, Shuguang Xie Biotechnology and Bioprocess Engineering.2012; 17(2): 371. CrossRef
Molecular characterization of phenanthrene-degrading methanogenic communities in leachate-contaminated aquifer sediment S. Y. Zhang, Q. F. Wang, S. G. Xie International Journal of Environmental Science and Technology.2012; 9(4): 705. CrossRef
Increment in Anaerobic Hydrocarbon Degradation Activity of Halic Bay Sediments via Nutrient Amendment Mustafa Kolukirik, Orhan Ince, Bahar K. Ince Microbial Ecology.2011; 61(4): 871. CrossRef
Revealing archaeal diversity patterns and methane fluxes in Admiralty Bay, King George Island, and their association to Brazilian Antarctic Station activities C.R. Nakayama, E. Kuhn, A.C.V. Araújo, P.C. Alvalá, W.J. Ferreira, R.F. Vazoller, V.H. Pellizari Deep Sea Research Part II: Topical Studies in Oceanography.2011; 58(1-2): 128. CrossRef
Bioremediation of marine sediments contaminated by hydrocarbons: Experimental analysis and kinetic modeling Francesca Beolchini, Laura Rocchetti, Francesco Regoli, Antonio Dell’Anno Journal of Hazardous Materials.2010; 182(1-3): 403. CrossRef
Mycobacterium sp. C2-3 was isolated from petroleum-contaminated soil around an oil reservoir and identified by analysis of its 16S rRNA gene sequence. Strain C2-3 was able to use fluorene, phenanthrene, fluoranthene and pyrene as sole sources of carbon and energy, yet unable to degrade naphthalene. The strain was also able to use n-alkanes, such as hexadecane and heptadecane, and
phenanthrene and pyrene, in particular, were degraded rapidly. The phylogenetic data suggested that the isolate C2-3 is a thermosensitive, fast-growing strain of Mycobacterium sp.