Menu
July 7, 2019

Complete genome sequence of oxalate-degrading bacterium Pandoraea vervacti DSM 23571(T).

Pandoraea vervacti DSM 23571(T) is an oxalate metabolizing bacterium isolated from an uncultivated field soil in Mugla, Turkey. Here, we present the first complete genome sequence of P. vervacti DSM 23571(T). A complete pathway for degradation of oxalate was revealed from the genome analysis. These data are important to path new opportunities for genetic engineering in the field of biotechnology. Copyright © 2015 Elsevier B.V. All rights reserved.


July 7, 2019

Genome sequence of the Drosophila melanogaster male-killing Spiroplasma strain MSRO endosymbiont.

Spiroplasmas are helical and motile members of a cell wall-less eubacterial group called Mollicutes. Although all spiroplasmas are associated with arthropods, they exhibit great diversity with respect to both their modes of transmission and their effects on their hosts; ranging from horizontally transmitted pathogens and commensals to endosymbionts that are transmitted transovarially (i.e., from mother to offspring). Here we provide the first genome sequence, along with proteomic validation, of an endosymbiotic inherited Spiroplasma bacterium, the Spiroplasma poulsonii MSRO strain harbored by Drosophila melanogaster. Comparison of the genome content of S. poulsonii with that of horizontally transmitted spiroplasmas indicates that S. poulsonii has lost many metabolic pathways and transporters, demonstrating a high level of interdependence with its insect host. Consistent with genome analysis, experimental studies showed that S. poulsonii metabolizes glucose but not trehalose. Notably, trehalose is more abundant than glucose in Drosophila hemolymph, and the inability to metabolize trehalose may prevent S. poulsonii from overproliferating. Our study identifies putative virulence genes, notably, those for a chitinase, the H2O2-producing glycerol-3-phosphate oxidase, and enzymes involved in the synthesis of the eukaryote-toxic lipid cardiolipin. S. poulsonii also expresses on the cell membrane one functional adhesion-related protein and two divergent spiralin proteins that have been implicated in insect cell invasion in other spiroplasmas. These lipoproteins may be involved in the colonization of the Drosophila germ line, ensuring S. poulsonii vertical transmission. The S. poulsonii genome is a valuable resource to explore the mechanisms of male killing and symbiont-mediated protection, two cardinal features of many facultative endosymbionts.Most insect species, including important disease vectors and crop pests, harbor vertically transmitted endosymbiotic bacteria. These endosymbionts play key roles in their hosts’ fitness, including protecting them against natural enemies and manipulating their reproduction in ways that increase the frequency of symbiont infection. Little is known about the molecular mechanisms that underlie these processes. Here, we provide the first genome draft of a vertically transmitted male-killing Spiroplasma bacterium, the S. poulsonii MSRO strain harbored by D. melanogaster. Analysis of the S. poulsonii genome was complemented by proteomics and ex vivo metabolic experiments. Our results indicate that S. poulsonii has reduced metabolic capabilities and expresses divergent membrane lipoproteins and potential virulence factors that likely participate in Spiroplasma-host interactions. This work fills a gap in our knowledge of insect endosymbionts and provides tools with which to decipher the interaction between Spiroplasma bacteria and their well-characterized host D. melanogaster, which is emerging as a model of endosymbiosis. Copyright © 2015 Paredes et al.


July 7, 2019

Complete genome sequence of Rhodococcus sp. B7740, a carotenoid-producing bacterium isolated from the Arctic Sea.

Rhodococcus sp. B7740 was isolated from Arctic seawater and selected for its capacity to synthesize carotenoids. Here, we report the complete genome sequence of Rhodococcus sp. B7740 to provide the genetic basis for a better understanding of its carotenoid-accumulating capabilities, and we describe the major features of the genome. Copyright © 2015 Zhang et al.


July 7, 2019

Complete genome sequences for 35 biothreat assay-relevant bacillus species.

In 2011, the Association of Analytical Communities (AOAC) International released a list of Bacillus strains relevant to biothreat molecular detection assays. We present the complete and annotated genome assemblies for the 15 strains listed on the inclusivity panel, as well as the 20 strains listed on the exclusivity panel. Copyright © 2015 Johnson et al.


July 7, 2019

First draft genome sequence of a human Coxiella burnetii isolate, originating from the largest Q fever outbreak ever reported, the Netherlands, 2007 to 2010.

In 2009, Coxiella burnetii caused a large regional outbreak of Q fever in South Limburg, the Netherlands. Here, we announce the genome draft sequence of a human C. burnetii isolate, strain NL-Limburg, originating from this outbreak, including a brief summary of the genome’s general features. Copyright © 2015 Hammerl et al.


July 7, 2019

Complete genome sequence of biocontrol strain Pseudomonas fluorescens LBUM223.

Pseudomonas fluorescens LBUM223 is a plant growth-promoting rhizobacterium (PGPR) with biocontrol activity against various plant pathogens. It produces the antimicrobial metabolite phenazine-1-carboxylic acid, which is involved in the biocontrol of Streptomyces scabies, the causal agent of common scab of potato. Here, we report the complete genome sequence of P. fluorescens LBUM223. Copyright © 2015 Roquigny et al.


July 7, 2019

Insights on quorum-quenching properties of Lysinibacillus fusiformis strain RB21, a Malaysian municipal solid-waste landfill soil isolate, via complete genome sequence analysis.

Lysinibacillus fusiformis strain RB21 is a quorum-quenching bacterium that is able to degrade quorum-sensing signaling molecules. Here, we present the first complete genome sequence of L. fusiformis strain RB21. The finished genome is 4.8 Mbp in size, and the quorum-quenching gene was identified. Copyright © 2015 Yong et al.


July 7, 2019

Genome resequencing of the virulent and multidrug-resistant reference strain Clostridium difficile 630.

We resequenced the complete genome of the virulent and multidrug-resistant pathogen Clostridium difficile strain 630. A combination of single-molecule real-time and Illumina sequencing technology revealed the presence of an additional rRNA gene cluster, additional tRNAs, and the absence of a transposon in comparison to the published and reannotated genome sequence. Copyright © 2015 Riedel et al.


July 7, 2019

Complete genome of Jeotgalibacillus malaysiensis D5(T) consisting of a chromosome and a circular megaplasmid.

Jeotgalibacillus spp. are halophilic bacteria within the family Planococcaceae. No genomes of Jeotgalibacillus spp. have been reported to date, and their metabolic pathways are unknown. How the bacteria survive in hypertonic conditions such as seawater is yet to be discovered. As only few studies have been conducted on Jeotgalibacillus spp., potential applications of these bacteria are unknown. Here, we present the complete genome of J. malaysiensis D5(T) (=DSM 28777(T) =KCTC 33350(T)), which is invaluable in identifying interesting applications for this genus. Copyright © 2015 Elsevier B.V. All rights reserved.


July 7, 2019

Resources for genetic and genomic analysis of emerging pathogen Acinetobacter baumannii.

Acinetobacter baumannii is a Gram-negative bacterial pathogen notorious for causing serious nosocomial infections that resist antibiotic therapy. Research to identify factors responsible for the pathogen’s success has been limited by the resources available for genome-scale experimental studies. This report describes the development of several such resources for A. baumannii strain AB5075, a recently characterized wound isolate that is multidrug resistant and displays robust virulence in animal models. We report the completion and annotation of the genome sequence, the construction of a comprehensive ordered transposon mutant library, the extension of high-coverage transposon mutant pool sequencing (Tn-seq) to the strain, and the identification of the genes essential for growth on nutrient-rich agar. These resources should facilitate large-scale genetic analysis of virulence, resistance, and other clinically relevant traits that make A. baumannii a formidable public health threat.Acinetobacter baumannii is one of six bacterial pathogens primarily responsible for antibiotic-resistant infections that have become the scourge of health care facilities worldwide. Eliminating such infections requires a deeper understanding of the factors that enable the pathogen to persist in hospital environments, establish infections, and resist antibiotics. We present a set of resources that should accelerate genome-scale genetic characterization of these traits for a reference isolate of A. baumannii that is highly virulent and representative of current outbreak strains. Copyright © 2015, American Society for Microbiology. All Rights Reserved.


Talk with an expert

If you have a question, need to check the status of an order, or are interested in purchasing an instrument, we're here to help.