DOI: 10.1016/j.marpolbul.2014.01.021
Scopus记录号: 2-s2.0-84906229821
论文题名: Glyphosate persistence in seawater
作者: Mercurio P. ; Flores F. ; Mueller J.F. ; Carter S. ; Negri A.P.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 85, 期: 2 起始页码: 385
结束页码: 390
语种: 英语
英文关键词: Degradation
; Glyphosate
; Microbial
; Persistence
; Seawater
; Tropical
Scopus关键词: Biodegradation
; Degradation
; Seawater
; Weed control
; Bacterial population
; Glyphosates
; Low light conditions
; Microbial
; Microbial communities
; Microbial transformation
; Persistence
; Tropical
; Herbicides
; alpha amino 3 hydroxy 5 methyl 4 isoxazolepropionic acid
; dissolved oxygen
; glyphosate
; sea water
; glycine
; glyphosate
; herbicide
; sea water
; bacterium
; biodegradation
; glyphosate
; marine pollution
; microbial community
; persistence
; seawater
; article
; bioremediation
; coastal waters
; concentration (parameters)
; controlled study
; darkness
; half life time
; light intensity
; limit of detection
; microbial community
; microbial degradation
; nonhuman
; photodegradation
; pollution monitoring
; population abundance
; stimulation
; temperature sensitivity
; water contamination
; water temperature
; analogs and derivatives
; chemistry
; environmental monitoring
; microbiology
; Australia
; Coral Sea
; Great Barrier Reef
; Pacific Ocean
; Queensland
; Bacteria (microorganisms)
; Biodegradation, Environmental
; Environmental Monitoring
; Glycine
; Half-Life
; Herbicides
; Seawater
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Glyphosate is one of the most widely applied herbicides globally but its persistence in seawater has not been reported. Here we quantify the biodegradation of glyphosate using standard "simulation" flask tests with native bacterial populations and coastal seawater from the Great Barrier Reef. The half-life for glyphosate at 25 °C in low-light was 47 days, extending to 267 days in the dark at 25 °C and 315 days in the dark at 31 °C, which is the longest persistence reported for this herbicide. AMPA, the microbial transformation product of glyphosate, was detected under all conditions, confirming that degradation was mediated by the native microbial community. This study demonstrates glyphosate is moderately persistent in the marine water under low light conditions and is highly persistent in the dark. Little degradation would be expected during flood plumes in the tropics, which could potentially deliver dissolved and sediment-bound glyphosate far from shore. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85339
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: The University of Queensland, National Research Centre for Environmental Toxicology, 39 Kessels Road, Coopers Plains, Brisbane, QLD 4108, Australia; Australian Institute of Marine Science, PMB No. 3, Townsville, QLD 4810, Australia; Forensic and Scientific Services, Health Services Support Agency, QLD Department of Health, PO Box 594, Archerfield, QLD 4108, Australia
Recommended Citation:
Mercurio P.,Flores F.,Mueller J.F.,et al. Glyphosate persistence in seawater[J]. Marine Pollution Bulletin,2014-01-01,85(2)