Bacterial growth yields on EDTA, NTA, and their biodegradation intermediates

Yuan, Zhiwen; VanBriesen, Jeanne M.

doi:10.1007/s10532-007-9113-y

Cited by 32 publications

(13 citation statements)

References 45 publications

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“…We have shown for the first time that a strain of the genus Rhodococcus can degrade FeNTA. This is also the first gram-positive bacterium shown to degrade FeNTA, as previous examples involved gram-negative bacteria (4,17). This is of primary importance when considering more generally the fate of NTA in the environment, as it suggests the possibility that a wide variety of strains are able to degrade it.…”

Section: Vol 74 2008mentioning

confidence: 88%

Fate of the Nitrilotriacetic Acid-Fe(III) Complex during Photodegradation and Biodegradation by Rhodococcus rhodochrous

Bunescu

Besse-Hoggan

Sancelme

et al. 2008

Appl Environ Microbiol

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Aminopolycarboxylic acids are ubiquitous in natural waters and wastewaters. They have the ability to form very stable water-soluble complexes with many metallic di-or trivalent ions. The iron complex nitrilotriacetic acid-Fe(III) (FeNTA) has been previously shown to increase drastically the rate of photo-and biodegradation of 2-aminobenzothiazole, an organic pollutant, by Rhodococcus rhodochrous. For this paper, the fate of FeNTA was investigated during these degradation processes. First, it was shown, using in situ 1 H nuclear magnetic resonance, that the complex FeNTA was biodegraded by Rhodococcus rhodochrous cells, but the ligand (NTA) alone was not. This result indicates that FeNTA was transported and biotransformed inside the cell. The same products, including iminodiacetic acid, glycine, and formate, were obtained during the photo-and biodegradation processes of FeNTA, likely because they both involve oxidoreduction mechanisms. When the results of the different experiments are compared, the soluble iron, measured by spectrophotometry, was decreasing when microbial cells were present. About 20% of the initial iron was found inside the cells. These results allowed us to propose detailed mechanistic schemes for FeNTA degradation by solar light and by R. rhodochrous.

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Section: Vol 74 2008mentioning

confidence: 88%

Fate of the Nitrilotriacetic Acid-Fe(III) Complex during Photodegradation and Biodegradation by Rhodococcus rhodochrous

Bunescu

Besse-Hoggan

Sancelme

et al. 2008

Appl Environ Microbiol

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“…Aminobacter sp. and members of the order Rhizobiales are in addition able to degrade xenobiotic substances such as estradiols and ethylenediaminetetraacetic acid (EDTA) (Bucheli‐Witschel & Egli, ; Yu et al ., ; Yuan & VanBriesen, ). The synthetic wastewater adopted from de Kreuk et al .…”

Section: Discussionmentioning

confidence: 99%

Linking bacterial population dynamics and nutrient removal in the granular sludge biofilm ecosystem engineered for wastewater treatment

Weissbrodt

Shani

Holliger

2014

FEMS Microbiol Ecol

106

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Intensive nutrient removal from wastewater in anaerobic-aerobic systems using granular sludge should rely on optimal balances at biofilm and microbial ecology levels. This study targets the impacts of reactor characteristics and fluctuations in operation conditions on nutrient removal and bacterial community structures by means of microbial and numerical ecology methods. The dynamics of both predominant and accompanying populations were investigated with high resolution on temporal and phylogenetic scales in two reactors operated during 5 months with synthetic wastewater. Multivariate analyses highlighted significant correlations from process to microbial scales in the first reactor, whereas nitrification and phosphorus removal might have been affected by oxygen mass transfer limitations with no impact at population level in the second system. The bacterial community continuum of the first reactor was composed of two major antagonistic Accumulibacter-Nitrosomonas-Nitrospira and Competibacter-Cytophaga-Intrasporangiaceae clusters that prevailed under conditions leading to efficient P- (> 95%) and N-removal (> 65%) and altered P- (< 90%) and N-removal (< 60%), respectively. A third cluster independent of performances was dominated by Xanthomonadaceae affiliates that were on average more abundant at 25 °C (31 ± 5%) than at 20 °C (22 ± 4%). Starting from the physiological traits of the numerous phylotypes identified, a conceptual model is proposed as a base for functional analysis in the granular sludge microbiome and for future investigations with complex real wastewater.

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“…Key enzymes involved in activation reactions of NTA breakdown, e.g. oxygenases, are very likely to occur in fairly high numbers of WWTPs(Bucheli-Witschel & Egli 2001;Yuan & VanBriesen 2008). However, investigating these requires their quantification and identification which cannot be achieved by means of this approach.Hence, it is assumed that no occurrence of specialists in the microbial consortium is required for co-metabolic biodegradation.…”

mentioning

confidence: 99%

Influence of microbial activity on polar xenobiotic degradation in activated sludge systems

Majewsky

Gallé

Zwank

et al. 2010

Water Science and Technology

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The influence of activated sludge quality on the co-metabolic biodegradation of three aminocarboxylic [corrected] acids was investigated for a variety of Luxembourg sewage treatment plants. A combination of biodegradation experiments and respirometric techniques are presented as a reliable approach for the estimation of biokinetics and biological xenobiotic degradation rates that allow for identification of governing parameters such as microbial activity and active biomass. Results showed that biokinetics and degradation rates vary greatly between different plants. The fraction of active biomass on the total suspended solids ranged between 16.9 and 53.7%. Xenobiotic biodegradation rates correlated with microbial activity suggesting a relationship with WWTP performance for carbon and nutrient removal. The biokinetic information can be used to increase the prediction accuracy of xenobiotics removal by individual WWTPs.

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Bacterial growth yields on EDTA, NTA, and their biodegradation intermediates

Cited by 32 publications

References 45 publications

Fate of the Nitrilotriacetic Acid-Fe(III) Complex during Photodegradation and Biodegradation by Rhodococcus rhodochrous

Fate of the Nitrilotriacetic Acid-Fe(III) Complex during Photodegradation and Biodegradation by Rhodococcus rhodochrous

Linking bacterial population dynamics and nutrient removal in the granular sludge biofilm ecosystem engineered for wastewater treatment

Influence of microbial activity on polar xenobiotic degradation in activated sludge systems

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