Dataset Information

Complete genome sequence of natural rubber-degrading, gram-negative bacterium, Rhizobacter gummiphilus strain NS21T.

ABSTRACT: Gram-negative natural rubber-degrader, Rhizobacter gummiphilus NS21T, which was isolated from soil in the botanical garden in Japan, is a newly proposed species of genus of Rhizobacter. It has been reported that the latA1 gene is involved in the natural rubber degradation in this strain. To gain novel insights into natural rubber degradation pathway, the complete genome sequence of this strain was determined. The genome of strain NS21T consists of 6,398,096 bp of circular chromosome (GenBank accession number CP015118.1) with G?+?C content of 69.72%. The genome contains 5687 protein-coding and 68 RNA genes. Among the predicted genes, 4810 genes were categorized as functional COGs. Homology search revealed that existence of latA1 homologous gene (latA2) in this genome. Quantitative reverse-transcription-PCR and deletion analyses indicated that natural rubber degradation of this strain requires latA2 as well as latA1.

SUBMITTER: Linh DV

PROVIDER: S-EPMC6460296 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Publications

Complete genome sequence of natural rubber-degrading, gram-negative bacterium, Rhizobacter gummiphilus strain NS21T.

Linh Dao Viet DV Gibu Namiko N Tabata Michiro M Imai Shunsuke S Hosoyama Akira A Yamazoe Atsushi A Kasai Daisuke D Fukuda Masao M

Biotechnology reports (Amsterdam, Netherlands) 20190401

Gram-negative natural rubber-degrader, Rhizobacter gummiphilus NS21T, which was isolated from soil in the botanical garden in Japan, is a newly proposed species of genus of Rhizobacter. It has been reported that the latA1 gene is involved in the natural rubber degradation in this strain. To gain novel insights into natural rubber degradation pathway, the complete genome sequence of this strain was determined. The genome of strain NS21T consists of 6,398 ...[more]

PMID: 31011550

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Project description:The pathway of rubber (poly [cis-1,4-isoprene]) catabolism is well documented for Gram-positive rubber degraders but only little information exists for Gram-negative species. The first documented potent rubber degrading Gram-negative strain is Xanthomonas sp. strain 35Y that uses extracellular rubber oxygenases for the initial cleavage of the polyisoprene molecule. However, neither the exact phylogenetic position of Xanthomonas sp. strain 35Y nor the catabolic pathway of the primary polyisoprene cleavage products have been investigated. In this contribution, we started to address both these issues by a comprehensive taxonomic characterization and by the analysis of the draft genome sequence of strain 35Y. Evaluation of the 16S rRNA gene sequence pointed to a borderline taxonomic position of strain 35Y as a novel species of the genus Steroidobacter. Further, substantial differences in the genotypic properties of strain 35Y and the members of the genus Steroidobacter, including average nucleotide identity (ANI) and in silico DNA-DNA hybridization (DDH), resolved the taxonomic position of strain 35Y and suggested its positioning as a novel species of the genus Steroidobacter. This was further confirmed by comparative analysis of physiological and biochemical features of strain 35Y with other members of the genus Steroidobacter. Thus, we conclude that strain 35Y represents a novel species of the genus Steroidobacter, for which we propose the designation Steroidobacter cummioxidans sp. nov., strain 35YT. A comprehensive analysis of the draft genome of S. cummioxidans strain 35Y revealed similarities but also substantial differences to rubber degrading Gram-positive counterparts. In particular, the putative transporters for the uptake of polyisoprene cleavage products differ from Gram-positive rubber degrading species. The draft genome sequence of S. cummioxidans strain 35Y will be useful for researchers to experimentally verify the predicted similarities and differences in the pathways of polyisoprene catabolism in Gram-positive and Gram-negative rubber degrading species.

Dataset Information

Complete genome sequence of natural rubber-degrading, gram-negative bacterium, Rhizobacter gummiphilus strain NS21T.

Publications

Complete genome sequence of natural rubber-degrading, gram-negative bacterium, <i>Rhizobacter gummiphilus</i> strain NS21<sup>T</sup>.

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