Dataset Information

Genome Sequencing of Ralstonia solanacearum Race 4, Biovar 4, and Phylotype I, Strain YC45, Isolated from Rhizoma kaempferiae in Southern China.

ABSTRACT: Ralstonia solanacearum is an important phytopathogen that attacks over 400 plant species, including Zingiberaceae plants. Here, we report the complete genome sequence of strain YC45, which was isolated from Rhizoma kaempferiae in southern China.

SUBMITTER: She X

PROVIDER: S-EPMC4591304 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature

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Genome Sequencing of Ralstonia solanacearum Race 4, Biovar 4, and Phylotype I, Strain YC45, Isolated from Rhizoma kaempferiae in Southern China.

She Xiaoman X Tang Yafei Y He Zifu Z Lan Guobing G

Genome announcements 20151001 5

Ralstonia solanacearum is an important phytopathogen that attacks over 400 plant species, including Zingiberaceae plants. Here, we report the complete genome sequence of strain YC45, which was isolated from Rhizoma kaempferiae in southern China. ...[more]

PMID: 26430032

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Project description:A filamentous bacteriophage, designated ϕRs551, was isolated and purified from the quarantine and select agent phytopathogen Ralstonia solanacearum race 3 biovar 2 strain UW551 (phylotype IIB sequevar 1) grown under normal culture conditions. Electron microscopy suggested that ϕRs551 is a member of the family Inoviridae, and is about 1200 nm long and 7 nm wide. ϕRs551 has a genome of 7929 nucleotides containing 14 open reading frames, and is the first isolated virion that contains a resolvase (ORF13) and putative type-2 phage repressor (ORF14). Unlike other R. solanacearum phages isolated from soil, the genome sequence of ϕRs551 is not only 100% identical to its prophage sequence in the deposited genome of R. solanacearum strain UW551 from which the phage was isolated, but is also surprisingly found with 100% identity in the deposited genomes of 10 other phylotype II sequevar 1 strains of R. solanacearum. Furthermore, it is homologous to genome RS-09-161, resulting in the identification of a new prophage, designated RSM10, in a R. solanacearum strain from India. When ORF13 and a core attP site of ϕRs551 were either deleted individually or in combination, phage integration was not observed, suggesting that similar to other filamentous R. solanacearum ϕRSM phages, ϕRs551 relies on its resolvase and the core att sequence for site-directed integration into its susceptible R. solanacearum strain. The integration occurred four hours after phage infection. Infection of a susceptible R. solanacearum strain RUN302 by ϕRs551 resulted in less fluidal colonies and EPS production, and reduced motilities of the bacterium. Interestingly, infection of RUN302 by ϕRs551 also resulted in reduced virulence, rather than enhanced or loss of virulence caused by other ϕRSM phages. Study of bacteriophages of R. solanacearum would contribute to a better understanding of the phage-bacterium-environment interactions in order to develop integrated management strategies to combat R. solanacearum.

Dataset Information

Genome Sequencing of Ralstonia solanacearum Race 4, Biovar 4, and Phylotype I, Strain YC45, Isolated from Rhizoma kaempferiae in Southern China.

Publications

Genome Sequencing of Ralstonia solanacearum Race 4, Biovar 4, and Phylotype I, Strain YC45, Isolated from Rhizoma kaempferiae in Southern China.

Similar Datasets

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