ArticleApplied and environmental microbiology2013
Benz[a]anthracene biotransformation and production of ring fission products by Sphingobium sp. strain KK22.
Article in Applied and environmental microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 51 citations in OpenAlex.
- Transcriptomic profiling ofMicrobial genomics · 2025Article
- Utilization of the C9 aromatic hydrocarbon n-propylbenzene by Sphingobium barthaii KK22 and coexistence of multiple biodegradation pathways.Biodegradation · 2025Article
- The Effects of Polymer-Nitrogen Fertilizer on Biomes in Drip-Irrigated Wheat Soil.Microorganisms · 2025Article
- Article
- Enhancing sugarcane's drought resilience: the influence of Streptomycetales and Rhizobiales.Frontiers in plant science · 2024Review
- Soil and seed both influence bacterial diversity in the microbiome of theFrontiers in plant science · 2024Article
- Nondesulfurizing benzothiophene biotransformation to hetero and homodimeric ortho-substituted diaryl disulfides by the model PAH-degrading Sphingobium barthaii.Biodegradation · 2023Article
- Complete Genome Sequence of Sphingobium barthaii KK22, a High-Molecular-Weight Polycyclic Aromatic Hydrocarbon-Degrading Soil Bacterium.Microbiology resource announcements · 2021Article
- Characterization of the Phenanthrene-DegradingMicroorganisms · 2020Article
- Article
- High PAH degradation and activity of degrading bacteria during alfalfa growth where a contrasted active community developed in comparison to unplanted soil.Environmental science and pollution research international · 2018Article
- Tracing the Biotransformation of Polycyclic Aromatic Hydrocarbons in Contaminated Soil Using Stable Isotope-Assisted Metabolomics.Environmental science & technology letters · 2018Article
- Synthetic extreme environments: overlooked sources of potential biotechnologically relevant microorganisms.Microbial biotechnology · 2017Article
- Diversity Analysis and Bioresource Characterization of Halophilic Bacteria Isolated from a South African Saltpan.Molecules (Basel, Switzerland) · 2017Article
- Application of DNA adductomics to soil bacterium Sphingobium sp. strain KK22.MicrobiologyOpen · 2015Article
- Article
- Draft Genome Sequence of Sphingobium sp. Strain KK22, a High-Molecular-Weight Polycyclic Aromatic Hydrocarbon-Degrading Bacterium Isolated from Cattle Pasture Soil.Genome announcements · 2013Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A soil bacterium, designated strain KK22, was isolated from a phenanthrene enrichment culture of a bacterial consortium that grew on diesel fuel, and it was found to biotransform the persistent environmental pollutant and high-molecular-weight polycyclic aromatic hydrocarbon (PAH) benz[a]anthracene. Nearly complete sequencing of the 16S rRNA gene of strain KK22 and phylogenetic analysis revealed that this organism is a new member of the genus Sphingobium. An 8-day time course study that consisted of whole-culture extractions followed by high-performance liquid chromatography (HPLC) analyses with fluorescence detection showed that 80 to 90% biodegradation of 2.5 mg liter(-1) benz[a]anthracene had occurred. Biodegradation assays where benz[a]anthracene was supplied in crystalline form (100 mg liter(-1)) confirmed biodegradation and showed that strain KK22 cells precultured on glucose were equally capable of benz[a]anthracene biotransformation when precultured on glucose plus phenanthrene. Analyses of organic extracts from benz[a]anthracene biodegradation by liquid chromatography negative electrospray ionization tandem mass spectrometry [LC/ESI(-)-MS/MS] revealed 10 products, including two o-hydroxypolyaromatic acids and two hydroxy-naphthoic acids. 1-Hydroxy-2- and 2-hydroxy-3-naphthoic acids were unambiguously identified, and this indicated that oxidation of the benz[a]anthracene molecule occurred via both the linear kata and angular kata ends of the molecule. Other two- and single-aromatic-ring metabolites were also documented, including 3-(2-carboxyvinyl)naphthalene-2-carboxylic acid and salicylic acid, and the proposed pathways for benz[a]anthracene biotransformation by a bacterium were extended.
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