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Comamonas testosteroni strain:YAZ2

ABSTRACT: Characterization of aerobic polychlorinated biphenyl-degrading bacteria isolated from the Tohoku region of Japan

PROVIDER: PRJDB11572 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	DRR315136_1.fastq.gz	Fastqsanger.gz
	DRR315136_2.fastq.gz	Fastqsanger.gz
	DRR315137_1.fastq.gz	Fastqsanger.gz
	DRR315137_2.fastq.gz	Fastqsanger.gz

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Whole gene transcriptomic analysis of testosterone/17 beta-estradiol degrading in Comamonas testosteroni JLU460ET

Project description:Purpose: find testosterone/17 beta-estradiol degrading genes in strain Comamonas testosteroni JLU460ET

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Black Carbon Impacts on Paraburkholderia xenovorans Strain LB400 Cell Enrichment and Activity: Implications toward Lower-Chlorinated Polychlorinated Biphenyls Biodegradation

Project description:Volatilization of lower-chlorinated polychlorinated biphenyls (LC-PCBs) from sediment poses health threats to nearby communities and ecosystems. Biodegradation combined with black carbon (BC) materials is an emerging approach to remove PCBs from sediment, but development of aerobic biofilms on BC for long-term, sustained LC-PCBs remediation is poorly understood. This work aimed to characterize cell enrichment and activity of biphenyl- and benzoate-grown Paraburkholderia xenovorans strain LB400 on various BCs. Biphenyl dioxygenase gene (bphA) abundance on four BC types demonstrated corn kernel biochar hosted at least four orders of magnitude more attached cells per gram than other feedstocks, and microscopic imaging revealed the attached live cell fraction was >1.5X more on corn kernel biochar than GAC. BC characteristics (i.e., sorption potential, surface area, pH) drove cell attachment differences. Reverse transcription qPCR indicated BC feedstocks significantly influenced bphA expression in attached cells. The bphA transcript-per-gene ratio of attached cells was >10-fold more than suspended cells, confirmed by transcriptomics. RNA-seq also demonstrated significant upregulation of biphenyl and benzoate degradation pathways on attached cells, revealing biofilm formation potential and cell-cell communication pathway connections. These novel findings demonstrate aerobic PCB-degrading cell abundance and activity could be tuned by adjusting BC feedstocks/ attributes to improve LC-PCBs biodegradation.

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Comamonas testosteroni KF-1

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Profile of microRNAs in human umblical vein endothelial cells (HUVECs)

Project description:Polychlorinated biphenyl exposure alters the expression profile of microRNAs in HUVECs

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Comamonas testosteroni strain:R2

Project description:Transcriptome analysis of Comamonas testosteroni R2 cultivated in phenol-degrading chemostat reactor

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Permanent draft genome sequence of Comamonas testosteroni KF-1.

Project description:Comamonas testosteroni KF-1 is a model organism for the elucidation of the novel biochemical degradation pathways for xenobiotic 4-sulfophenylcarboxylates (SPC) formed during biodegradation of synthetic 4-sulfophenylalkane surfactants (linear alkylbenzenesulfonates, LAS) by bacterial communities. Here we describe the features of this organism, together with the complete genome sequence and annotation. The 6,026,527 bp long chromosome (one sequencing gap) exhibits an average G+C content of 61.79% and is predicted to encode 5,492 protein-coding genes and 114 RNA genes.

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Identification of Comamonas testosteroni as an androgen degrader in sewage.

Project description:Numerous studies have reported the masculinization of freshwater wildlife exposed to androgens in polluted rivers. Microbial degradation is a crucial mechanism for eliminating steroid hormones from contaminated ecosystems. The aerobic degradation of testosterone was observed in various bacterial isolates. However, the ecophysiological relevance of androgen-degrading microorganisms in the environment is unclear. Here, we investigated the biochemical mechanisms and corresponding microorganisms of androgen degradation in aerobic sewage. Sewage samples collected from the Dihua Sewage Treatment Plant (Taipei, Taiwan) were aerobically incubated with testosterone (1 mM). Androgen metabolite analysis revealed that bacteria adopt the 9, 10-seco pathway to degrade testosterone. A metagenomic analysis indicated the apparent enrichment of Comamonas spp. (mainly C. testosteroni) and Pseudomonas spp. in sewage incubated with testosterone. We used the degenerate primers derived from the meta-cleavage dioxygenase gene (tesB) of various proteobacteria to track this essential catabolic gene in the sewage. The amplified sequences showed the highest similarity (87-96%) to tesB of C. testosteroni. Using quantitative PCR, we detected a remarkable increase of the 16S rRNA and catabolic genes of C. testosteroni in the testosterone-treated sewage. Together, our data suggest that C. testosteroni, the model microorganism for aerobic testosterone degradation, plays a role in androgen biodegradation in aerobic sewage.

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