Specific micropollutant biotransformation pattern by the comammox bacterium .

08:00 EDT 11th July 2019 | BioPortfolio

Summary of "Specific micropollutant biotransformation pattern by the comammox bacterium ."

The recently discovered complete ammonia-oxidizing (comammox) bacteria are occurring in various environments, including wastewater treatment plants. To better understand their role in micropollutant biotransformation in comparison with ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA), we investigated the biotransformation capability of (the only comammox isolate) for 17 micropollutants. Asulam, fenhexamid, mianserin, and ranitidine were biotransformed by , (AOA) and Nm90 (AOB). More distinctively, carbendazim, a benzimidazole fungicide, was exclusively biotransformed by . The biotransformation of carbendazim only occurred when was supplied with ammonia but not nitrite as the energy source. The exclusive biotransformation of carbendazim by was likely enabled by an enhanced substrate promiscuity of its unique AMO and its much higher substrate (for ammonia) affinity compared with the other two ammonia oxidizers. One major plausible transformation product (TP) of carbendazim is a hydroxylated form at the aromatic ring, which is consistent with the function of AMO. These findings provide fundamental knowledge on the micropollutant degradation potential of a comammox bacterium, to better understand the fate of micropollutants in nitrifying environments.


Journal Details

This article was published in the following journal.

Name: Environmental science & technology
ISSN: 1520-5851


DeepDyve research library

PubMed Articles [10481 Associated PubMed Articles listed on BioPortfolio]

Relating Metatranscriptomic Profiles to the Micropollutant Biotransformation Potential of Complex Microbial Communities.

Biotransformation of chemical contaminants is of importance in various natural and engineered systems. However, in complex microbial communities and with chemical contaminants at low concentrations, o...

Enhanced estrogen removal in activated sludge processes through the optimization of the hydraulic flow pattern.

The removal of β-estradiol (E2) and α-ethinylestradiol (EE2) in biological wastewater treatment plants (WWTP) would need to be improved in order to comply with prospective Environmental Quality Stan...

Ampicillin biotransformation by a nitrifying consortium.

Ampicillin is a widely used β-lactam antibiotic that has been detected in various effluents and can alter biological processes used in wastewater treatment such as nitrification. Physiological and ki...

Enhancement of micropollutant degradation in UV/HO process via iron-containing coagulants.

The low molar absorption coefficient of HO limits the ultraviolet (UV)/HO process, making it a desirable target to enhance the UV/HO process for organic micropollutant degradation. Therefore, this stu...

Electrocoagulants characteristics and application of electrocoagulation for micropollutant removal and transformation mechanism.

Predominantly, the removal of dissolved contaminates via the Fe electrocoagulation (EC) process depends on the electrocoagulants stability, specific area, porosity, dissolution rate and phase transfor...

Clinical Trials [3001 Associated Clinical Trials listed on BioPortfolio]

The Mass Balance and Biotransformation of [14C] Vicagrel in Healthy Man

This study was designed to evaluate the mass balance and biotransformation after single-dose of [14C]Vicagrel orally in Chinese healthy male volunteers, revealing the overall pharmacokinet...

Propionibacterium Dermal Colonization: Implications for Total Hip Arthroplasty

This study is being done to investigate the colonization rate(growth rate) of a particular type of low-virulence (does not typically cause infection) bacterium called Propionibacterium, mo...

Study to Evaluate the Mass Balance and Biotransformation of [14C]-Fluzoparib in Chinese Patients With Solid Tumor

Study to Evaluate the Mass Balance and Biotransformation of Single Dose [14C]-FZPL in Chinese Patients with Solid Tumor

Study Evaluating the Mass Balance And Biotransformation of Single Dose[14C] AST2818 in Chinese Healthy Male Volunteers

Study to Evaluate the Mass Balance and Biotransformation of Single Dose[14C] AST2818 in Chinese Healthy Male Volunteers

Study to Evaluate the Mass Balance and Biotransformation of [14C]SHR4640 in Chinese Healthy Adult Male Volunteers.

Study to Evaluate the Mass Balance and Biotransformation of Single Dose [14C]SHR4640 in Chinese healthy adult male volunteers.

Medical and Biotech [MESH] Definitions

A genus of gram-positive BACTERIA in the family Gordoniaceae, isolated from soil and from sputa of patients with chest disorders. It is also used for biotransformation of natural products.

The pattern of GENE EXPRESSION at the level of genetic transcription in a specific organism or under specific circumstances in specific cells.

The phenomenon by which a temperate phage incorporates itself into the DNA of a bacterial host, establishing a kind of symbiotic relation between PROPHAGE and bacterium which results in the perpetuation of the prophage in all the descendants of the bacterium. Upon induction (VIRUS ACTIVATION) by various agents, such as ultraviolet radiation, the phage is released, which then becomes virulent and lyses the bacterium.

Pathogens' molecules with specific sequence patterns that are recognized by PATTERN RECOGNITION RECEPTORS. They include microbial DNA, double-stranded RNA, surface glycoproteins, lipopolysaccharides, peptidoglycans, and lipoteichoic acid.

The determination of the pattern of genes expressed at the level of GENETIC TRANSCRIPTION, under specific circumstances or in a specific cell.

Quick Search

DeepDyve research library

Searches Linking to this Article