Die reduktion von perchlqrat durch bakterien. I. Untersuchungen an intakten zellen

Hackenthal, E.; Mannheim, W.; Hackenthal, Renate; Becher, Rune

doi:10.1016/0006-2952(64)90137-6

Cited by 62 publications

(22 citation statements)

References 14 publications

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“…Although perchlorate reduction was originally thought to be catalyzed by nitrate reductase (17), recent studies using perchlorate-reducing bacteria Dechloromonas sp. strain KJ (39) and Dechlorosoma suillum strains PS (11) and perc1ace (15) have suggested the presence of two distinct inducible enzymatic systems for perchlorate and nitrate reduction.…”

Section: Vol 71 2005 Microbial Reduction Of Perchlorate and Nitratementioning

confidence: 99%

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Reduction of Perchlorate and Nitrate by Microbial Communities in Vadose Soil

Nozawa-Inoue

Scow

Rolston

2005

Appl Environ Microbiol

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Perchlorate contamination is a concern because of the increasing frequency of its detection in soils and groundwater and its presumed inhibitory effect on human thyroid hormone production. Although significant perchlorate contamination occurs in the vadose (unsaturated) zone, little is known about perchlorate biodegradation potential by indigenous microorganisms in these soils. We measured the effects of electron donor (acetate and hydrogen) and nitrate addition on perchlorate reduction rates and microbial community composition in microcosm incubations of vadose soil. Acetate and hydrogen addition enhanced perchlorate reduction, and a longer lag period was observed for hydrogen (41 days) than for acetate (14 days). Initially, nitrate suppressed perchlorate reduction, but once perchlorate started to be degraded, the process was stimulated by nitrate. Changes in the bacterial community composition were observed in microcosms enriched with perchlorate and either acetate or hydrogen. Denaturing gradient gel electrophoresis analysis and partial sequencing of 16S rRNA genes recovered from these microcosms indicated that formerly reported perchloratereducing bacteria were present in the soil and that microbial community compositions were different between acetate-and hydrogen-amended microcosms. These results indicate that there is potential for perchlorate bioremediation by native microbial communities in vadose soil.

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Section: Vol 71 2005 Microbial Reduction Of Perchlorate and Nitratementioning

confidence: 99%

“…(95%). The organism whose sequence was most closely related to the sequence of band A2, Bacillus cereus, has also been reported to be a perchlorate reducer (17).…”

Section: Vol 71 2005 Microbial Reduction Of Perchlorate and Nitratementioning

confidence: 99%

Reduction of Perchlorate and Nitrate by Microbial Communities in Vadose Soil

Nozawa-Inoue

Scow

Rolston

2005

Appl Environ Microbiol

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“…Later, it was found that some bacteria could reduce chlorate to chloride (Aslander, 1928;Bryan and Rohlich, 1954). The reduction of perchlorate to chloride by several species of heterotrophic bacteria was first demonstrated with the use of 36 Cl-labeled perchlorate (Hackenthal et al, 1964). Hackenthal (1965) concluded that chlorate was the product of perchlorate reduction by cell free extracts obtained from nitrateadapted cells of Bacillus cererus.…”

Section: The Perchlorate Degradation Pathwaymentioning

confidence: 99%

“…They also found that chlorate could be reduced by the same cell free preparation, and that it competitively inhibited perchlorate reduction. The first proposed perchlorate reduction pathway was ClO 4 Hackenthal et al, 1964;Hackenthal, 1965). The reduction of perchlorate or chlorate to chloride by bacteria was subsequently confirmed by other researchers (Korenkov et al, 1976;Malmqvist et al, 1991;Rikken et al, 1996;Coates et al, 1999;Wu et al, 2001).…”

Section: The Perchlorate Degradation Pathwaymentioning

confidence: 99%

Microbial Degradation of Perchlorate: Principles and Applications

Xu¹,

Song²,

Min³

et al. 2003

Environmental Engineering Science

165

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Perchlorate (ClO 42 ) release into the environment has occurred primarily in association with its manufacture and use in solid rocket propellant. When released into groundwater, perchlorate can spread over large distances because it is highly soluble in water and adsorbs poorly to soil. Two proven techniques to remove perchlorate from drinking water are anaerobic biological reactors and ion exchange. In this review, we focus on the application of microbiological systems for degrading perchlorate. Some bacteria can use perchlorate as an electron acceptor while oxidizing a large range of substrates. Perchlorate-respiring bacteria (PRB) are widely distributed in the environment, and are enriched at perchlorate-contaminated sites. We review the pathways by which PRB degrade perchlorate, and the different biological treatment processes that have been developed to remove perchlorate from water sources. We also discuss the effects of alternate electron acceptors in the water, such as oxygen and nitrate, on perchlorate removal. Although many different biological treatment systems using PRB have so far only been proven at the bench scale, all pilot scale tests performed to date with a few of these systems have been successful. The success of these perchlorate bioreactor tests indicates that biological treatment is a suitable method for soil remediation and water treatment of perchlorate-contaminated water.

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“…This is, however, unexpected as there are no known natural sources of these compounds (54) and they have only been introduced into the environment in the last hundred years due to human activities (116). Although early studies suggested that microbial (per)chlorate reduction may simply be a competitive reaction for the nitrate reductase system of denitrifying bacteria in the environment (46,47,107), this does not explain the presence of chlorate reductase enzymes such as the chlorate reductase C purified from Proteus mirabilis which can only use chlorate as a substrate (85).…”

Section: Relevancementioning

confidence: 93%

In-Situ Bioreduction and Removal of Ammonium Perchlorate

Coates¹,

Achenbach²

2006

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Die reduktion von perchlqrat durch bakterien. I. Untersuchungen an intakten zellen

Cited by 62 publications

References 14 publications

Reduction of Perchlorate and Nitrate by Microbial Communities in Vadose Soil

Reduction of Perchlorate and Nitrate by Microbial Communities in Vadose Soil

Microbial Degradation of Perchlorate: Principles and Applications

In-Situ Bioreduction and Removal of Ammonium Perchlorate

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