Abstract:
:1,2-Dibromoethane (EDB), which is a groundwater contaminant in areas where it was once used as a soil fumigant, was shown to be degraded aerobically by microorganisms in two types of surface soils from an EDB-contaminated groundwater discharge area. At initial concentrations of 6 to 8 mug/liter, EDB was degraded in a few days to near or below the detection limit of 0.02 mug/liter. At 15 to 18 mg/liter, degradation was slower. Bromide ion release at the higher concentrations was 1.4 +/- 0.3 and 2.1 +/- 0.2 molar equivalents for the two soils. Experiments with [C]EDB showed that EDB was converted to approximately equal amounts of CO(2) and apparent cellular carbon; only small amounts of added C were not attributable to these products or unreacted EDB. These results are encouraging, because they indicate that groundwater bacteria may hasten the removal of EDB from contaminated aerobic groundwater supplies. This report also provides evidence for soil-mediated chemical transformations of EDB.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Pignatello JJdoi
10.1128/AEM.51.3.588-592.1986keywords:
subject
Has Abstractpub_date
1986-03-01 00:00:00pages
588-92issue
3eissn
0099-2240issn
1098-5336journal_volume
51pub_type
杂志文章abstract::An aseptic vacuum extraction technique was used to obtain xylem fluid from the roots of rough lemon (Citrus jambhiri Lush.) rootstock of Florida citrus trees. Bacteria were consistently isolated from vascular fluid of both healthy and young tree decline-affected trees. Thirteen genera of bacteria were found, the most ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.43.6.1335-1342.1982
更新日期:1982-06-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.36.2.213-216.1978
更新日期:1978-08-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/aem.69.3.1532-1541.2003
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.00448-11
更新日期:2011-09-01 00:00:00
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journal_title:Applied and environmental microbiology
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更新日期:2000-06-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2012-01-01 00:00:00
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doi:10.1128/aem.70.4.1999-2012.2004
更新日期:2004-04-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.44.4.864-870.1982
更新日期:1982-10-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.67.8.3396-3405.2001
更新日期:2001-08-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.71.6.3184-3191.2005
更新日期:2005-06-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.55.5.1178-1186.1989
更新日期:1989-05-01 00:00:00
abstract::[This corrects the article on p. 4430 in vol. 63.]. ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:
更新日期:1998-03-01 00:00:00
abstract::The existence of anaerobic biodegradation of lignin was examined in mixed microflora. Egyptian soil samples, in which rapid mineralization of organic matter takes place in the presence of an important anaerobic microflora, were used to obtain the anaerobic enrichment cultures for this study. Specifically, 14CO2 or [14...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.46.3.661-665.1983
更新日期:1983-09-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.49.6.1379-1384.1985
更新日期:1985-06-01 00:00:00
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更新日期:2017-05-31 00:00:00
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journal_title:Applied and environmental microbiology
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更新日期:2008-11-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.47.1.39-43.1984
更新日期:1984-01-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2008-09-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02500-08
更新日期:2009-04-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.66.11.4605-4614.2000
更新日期:2000-11-01 00:00:00
abstract::Cyclic lipopeptides (CLPs) are produced by many Pseudomonas species and have several biological functions, including a role in surface motility, biofilm formation, virulence, and antimicrobial activity. This study focused on the diversity and role of LuxR-type transcriptional regulators in CLP biosynthesis in Pseudomo...
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doi:10.1128/AEM.00575-09
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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更新日期:2014-05-01 00:00:00
abstract::The psychrotolerant acidophile Acidithiobacillus ferrivorans has been identified from cold environments and has been shown to use ferrous iron and inorganic sulfur compounds as its energy sources. A bioinformatic evaluation presented in this study suggested that Acidithiobacillus ferrivorans utilized a ferrous iron ox...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02989-12
更新日期:2013-02-01 00:00:00
abstract::Quantitative in situ determination of conjugative gene transfer in defined bacterial biofilms using automated confocal laser scanning microscopy followed by three-dimensional analysis of cellular biovolumes revealed conjugation rates 1,000-fold higher than those determined by classical plating techniques. Conjugation ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.65.8.3710-3713.1999
更新日期:1999-08-01 00:00:00
abstract::Shewanella oneidensis couples oxidation of lactate to respiration of many substrates. Here we report that llpR (L-lactate-positive regulator, SO_3460) encodes a positive regulator of L-lactate utilization distinct from previously studied regulators. We also demonstrate D-lactate inhibition of L-lactate utilization in ...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02183-12
更新日期:2012-12-01 00:00:00