DOI: 10.1016/j.marpolbul.2017.10.058
Scopus记录号: 2-s2.0-85033552082
论文题名: Ongoing biodegradation of Deepwater Horizon oil in beach sands: Insights from tracing petroleum carbon into microbial biomass
作者: Bostic J.T. ; Aeppli C. ; Swarthout R.F. ; Reddy C.M. ; Ziolkowski L.A.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 126 起始页码: 130
结束页码: 136
语种: 英语
英文关键词: Deepwater Horizon
; Natural abundance radiocarbon
; Oil spill
; PLFA
Scopus关键词: Bacteria
; Beaches
; Fatty acids
; Microorganisms
; Oil spills
; Phospholipids
; Sand
; Deepwater horizons
; Measurements of
; Microbial biomass
; Microbial communities
; Natural abundance
; Petroleum residues
; Phospholipid fatty acid analysis
; PLFA
; Biodegradation
; carbon
; carbon 14
; fatty acid
; oil
; petroleum
; biodegradation
; biomass
; carbon
; fatty acid
; microbial community
; oil spill
; sand
; Alabama
; Article
; controlled study
; fatty acid analysis
; Florida
; microbial biomass
; microbial community
; microbial degradation
; Mississippi
; nonhuman
; oil spill
; photosynthesis
; residue analysis
; seashore
; soil analysis
; soil microflora
; weather
; weathering
; Alabama
; Atlantic Ocean
; Florida [United States]
; Gulf of Mexico
; Mississippi
; United States
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Heavily weathered petroleum residues from the Deepwater Horizon (DwH) disaster continue to be found on beaches along the Gulf of Mexico as oiled-sand patties. Here, we demonstrate the ongoing biodegradation of weathered Macondo Well (MW) oil residues by tracing oil-derived carbon into active microbial biomass using natural abundance radiocarbon (14C). Oiled-sand patties and non-oiled sand were collected from previously studied beaches in Mississippi, Alabama, and Florida. Phospholipid fatty acid (PLFA) analyses illustrated that microbial communities present in oiled-sand patties were distinct from non-oiled sand. Depleted 14C measurements of PLFA revealed that microbes on oiled-sand patties were assimilating MW oil residues five years post-spill. In contrast, microbes in non-oiled sand assimilated recently photosynthesized carbon. These results demonstrate ongoing biodegradation of weathered oil in sand patties and the utility of 14C PLFA analysis to track the biodegradation of MW oil residues long after other indicators of biodegradation are no longer detectable. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88612
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: School of the Earth, Ocean and Environment, University of South Carolina, Columbia, SC, United States; Bigelow Laboratory for Ocean SciencesME, United States; Department of Chemistry, Appalachian State University, Boone, NC, United States; Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; University of Maryland Center for Environmental Science, Appalachian Laboratory, Frostburg, MD, United States
Recommended Citation:
Bostic J.T.,Aeppli C.,Swarthout R.F.,et al. Ongoing biodegradation of Deepwater Horizon oil in beach sands: Insights from tracing petroleum carbon into microbial biomass[J]. Marine Pollution Bulletin,2018-01-01,126