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Khanh TD, Xuan TD. Association and Expression of Virulence from Plasmids of the Group B Strain in Pseudomonas syringae pv. eriobotryae. Pathogens 2018; 7:pathogens7020041. [PMID: 29661998 PMCID: PMC6027306 DOI: 10.3390/pathogens7020041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/10/2018] [Accepted: 04/12/2018] [Indexed: 11/16/2022] Open
Abstract
Pseudomonas syringae pv. eriobotryae causes serious stem canker in loquat (Eriobotrya japonica) trees. This study was conducted to determine whether plasmids are involved with its virulence. The strain NAE89, which belonged to the B group, harbored two plasmids at approximately 6.2 and 50 Mdal that caused stem canker and halo leaf spots on loquat plants. Following digestion with BamHI and ligation into the BamHI cloning site of the broad range host cosmid pLAFR3, four DNA fragments at 3.8, 6.6, 12.3, and 22.8 kb were generated. Although the plasmid-encoded virulence gene psvA was undigested with the BamHI, the halo leaf spot gene may be adjacent to the psvA gene was digested. A pLAFR3 cosmid clone was introduced into the non-pathogenic PE0 and NAE89-1 strains by triparental matings and the pathogenicity was recovered. As a result, the pLAFR3 cosmid clone was introduced into the largest size DNA fragment of 22.8 kb and determined to be the causal agent of canker on the stem of the loquat. This study revealed that the psvA gene, previously found in the 50 Mdal plasmid, was also observed in the 22.8 kb DNA fragment.
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Affiliation(s)
- Tran Dang Khanh
- Agricultural Genetics Institute, Pham Van Dong Street, Hanoi 122300, Vietnam.
| | - Tran Dang Xuan
- Division of Development Technology, Graduate School for International Development and Cooperation (IDEC), Hiroshima University, Higashi Hiroshima 739-8529, Japan.
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Coleman NV, Richardson-Harris J, Wilson NL, Holmes AJ. Insertion sequence ISPst4 activates pUC plasmid replication inPseudomonas stutzeri. FEMS Microbiol Lett 2014; 356:242-9. [DOI: 10.1111/1574-6968.12417] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 03/03/2014] [Accepted: 03/04/2014] [Indexed: 11/30/2022] Open
Affiliation(s)
- Nicholas V. Coleman
- School of Molecular Bioscience; University of Sydney; Darlington NSW Australia
| | | | - Neil L. Wilson
- School of Molecular Bioscience; University of Sydney; Darlington NSW Australia
| | - Andrew J. Holmes
- School of Molecular Bioscience; University of Sydney; Darlington NSW Australia
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Sakai Y, Ogawa N, Shimomura Y, Fujii T. A 2,4-dichlorophenoxyacetic acid degradation plasmid pM7012 discloses distribution of an unclassified megaplasmid group across bacterial species. MICROBIOLOGY-SGM 2014; 160:525-536. [PMID: 24440834 DOI: 10.1099/mic.0.074369-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Analysis of the complete nucleotide sequence of plasmid pM7012 from 2,4-dichlorophenoxyacetic-acid (2,4-D)-degrading bacterium Burkholderia sp. M701 revealed that the plasmid had 582 142 bp, with 541 putative protein-coding sequences and 39 putative tRNA genes for the transport of the standard 20 aa. pM7012 contains sequences homologous to the regions involved in conjugal transfer and plasmid maintenance found in plasmids byi_2p from Burkholderia sp. YI23 and pBVIE01 from Burkholderia sp. G4. No relaxase gene was found in any of these plasmids, although genes for a type IV secretion system and type IV coupling proteins were identified. Plasmids with no relaxase gene have been classified as non-mobile plasmids. However, nucleotide sequences with a high level of similarity to the genes for plasmid transfer, plasmid maintenance, 2,4-D degradation and arsenic resistance contained on pM7012 were also detected in eight other megaplasmids (~600 or 900 kb) found in seven Burkholderia strains and a strain of Cupriavidus, which were isolated as 2,4-D-degrading bacteria in Japan and the United States. These results suggested that the 2,4-D degradation megaplasmids related to pM7012 are mobile and distributed across various bacterial species worldwide, and that the plasmid group could be distinguished from known mobile plasmid groups.
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Affiliation(s)
- Yoriko Sakai
- Environmental Biofunction Division, National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, Ibaraki 305-8604, Japan
| | - Naoto Ogawa
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Surugaku, Shizuoka 422-8529, Japan
| | - Yumi Shimomura
- Environmental Biofunction Division, National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, Ibaraki 305-8604, Japan
| | - Takeshi Fujii
- Environmental Biofunction Division, National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, Ibaraki 305-8604, Japan
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Kenna DT, Yesilkaya H, Forbes KJ, Barcus VA, Vandamme P, Govan JRW. Distribution and genomic location of active insertion sequences in the Burkholderia cepacia complex. J Med Microbiol 2006; 55:1-10. [PMID: 16388024 DOI: 10.1099/jmm.0.46175-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
This study aimed firstly to establish the distribution and copy number within the Burkholderia cepacia complex of three insertion sequences (IS402, IS407 and IS1416) that possess the ability to activate transcription and hence influence gene expression. A second aim was to map the genomic insertion sites of one of the active insertion sequences (IS407) to establish putative links between insertion site and downstream gene activation. The resulting data revealed that all three insertion sequences were present in one-third of the 66 isolates tested. The three insertion sequences were prevalent across the nine B. cepacia complex species, although IS402 was absent from the 16 Burkholderia anthina strains tested and IS407 was absent from all 10 Burkholderia pyrrocinia strains. IS407 copies from six strains (two Burkholderia cenocepacia strains and one strain each of Burkholderia multivorans, Burkholderia stabilis, Burkholderia vietnamiensis and B. anthina) were mapped to the genome using hemi-nested inverse PCR. Insertions were found upstream of genes with wide-ranging functions. This study suggests that the abundance and distribution of these active insertion sequences is likely to affect genomic plasticity, and potentially gene transcription and pathogenicity.
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Affiliation(s)
- Dervla T Kenna
- Cystic Fibrosis Laboratory, Medical Microbiology, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, UK
| | - Hasan Yesilkaya
- Department of Infection, Immunity and Inflammation, University of Leicester, Maurice Shock Building, University Road, PO Box 138, Leicester LE1 9HN, UK
| | - Ken J Forbes
- Department of Medical Microbiology, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Victoria A Barcus
- Cystic Fibrosis Laboratory, Medical Microbiology, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, UK
| | - Peter Vandamme
- Laboratorium voor Microbiologie, Faculteit Wetenschappen, Universiteit Gent, Ledeganckstraat 35, B-9000, Gent, Belgium
| | - John R W Govan
- Cystic Fibrosis Laboratory, Medical Microbiology, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, UK
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Ohtsubo Y, Genka H, Komatsu H, Nagata Y, Tsuda M. High-temperature-induced transposition of insertion elements in burkholderia multivorans ATCC 17616. Appl Environ Microbiol 2005; 71:1822-8. [PMID: 15812007 PMCID: PMC1082539 DOI: 10.1128/aem.71.4.1822-1828.2005] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An efficient and quantitative method to analyze the transposition of various insertion sequence (IS) elements in Burkholderia multivorans ATCC 17616 was devised. pGEN500, a plasmid carrying a Bacillus subtilis-derived sacB gene, was introduced into ATCC 17616 cells, and 25% of their sucrose-resistant derivatives were found to carry various IS elements on pGEN500. A PCR-based experimental protocol, in which a mixture of several specific primer pairs was used, revealed that pGEN500 captured, in addition to five previously reported IS elements (IS401, IS402, IS406, IS407, and IS408), three novel IS elements, ISBmu1, ISBmu2, and ISBmu3. The global transposition frequency of these IS elements was enhanced more than sevenfold under a high-temperature condition (42 degrees C) but not under oxidative stress or starvation conditions. To our knowledge, this is the first report demonstrating the elevated transposition activities of several IS elements at a high temperature. The efficient experimental protocol developed in this study will be useful in quantitatively and simultaneously investigating various IS elements, as well as in capturing novel functional mobile elements from a wide variety of bacteria.
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Affiliation(s)
- Yoshiyuki Ohtsubo
- Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan.
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Miché L, Faure D, Blot M, Cabanne-Giuli E, Balandreau J. Detection and activity of insertion sequences in environmental strains of Burkholderia. Environ Microbiol 2001; 3:766-73. [PMID: 11846770 DOI: 10.1046/j.1462-2920.2001.00251.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The presence of two insertion sequences, IS406 and IS407, was tested by polymerase chain reaction (PCR) amplification in 25 strains representing 15 Burkholderia species and the close relative Ralstonia pickettii. A total of 50% of the 25 strains contained at least one of the two insertion sequences (ISs) and a statistically significant correlation was found between the occurrences of IS406 and IS407. Moreover, PCR-RFLP studies of the amplified fragments showed that IS406 is largely conserved among all the strains tested, whereas IS407 is rather polymorphic. Transposition activity was studied in Burkholderia vietnamiensis TVV75, using the pGBG1 target plasmid. This entrapping plasmid permitted the isolation and characterization of three active IS, able to activate the plasmid-borne tetA gene after transposition. Sequencing permitted the identification of these mobile genetic elements as isoforms of IS402, IS407 and IS1416. PCR amplification products provided IS probes, which were used to determine the copy-numbers of IS402, IS407 and IS1416 in the genome of B. vietnamiensis TVV75, by Southern blotting. Copy numbers are 12, 3 and 11 respectively. To our knowledge, this is the first description of active insertion sequences in B. vietnamiensis.
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Affiliation(s)
- L Miché
- Laboratoire d'Ecologie Microbienne, UMR CNRS 5557, Université Claude Bernard Lyon 1, 69622 Villeurbanne cedex, France
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Vivian A, Murillo J, Jackson RW. The roles of plasmids in phytopathogenic bacteria: mobile arsenals? MICROBIOLOGY (READING, ENGLAND) 2001; 147:763-780. [PMID: 11283273 DOI: 10.1099/00221287-147-4-763] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Alan Vivian
- Centre for Research in Plant Science, Faculty of Applied Sciences, UWE-Bristol, Coldharbour Lane, Bristol BS16 1QY, UK1
| | - Jesús Murillo
- Centre for Research in Plant Science, Faculty of Applied Sciences, UWE-Bristol, Coldharbour Lane, Bristol BS16 1QY, UK1
| | - Robert W Jackson
- Centre for Research in Plant Science, Faculty of Applied Sciences, UWE-Bristol, Coldharbour Lane, Bristol BS16 1QY, UK1
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Hasebe A, Iida S. The novel insertion sequences IS1417, IS1418, and IS1419 from Burkholderia glumae and their strain distribution. Plasmid 2000; 44:44-53. [PMID: 10873526 DOI: 10.1006/plas.2000.1466] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Three insertion sequences, IS1417, IS1418, and IS1419, were isolated from Burkholderia glumae (formerly Pseudomonas glumae), a gram-negative rice pathogenic bacterium, on the basis of their abilities to activate the expression of the neo gene of the entrap vector pSHI1063. The 1335-bp IS1417 element with 17-bp imperfect terminal inverted repeats was found to be flanked by 5-bp direct repeats of the vector sequence. IS1418 is 865 bp in length and carries 15-bp inverted repeats with a target duplication of 3 bp. The 1215-bp IS1419 sequence is bounded by the 36-bp terminal inverted repeats of the element and 7-bp direct repeats of the vector sequence. IS1417 and IS1418 belong to the IS2 subgroup of the IS3 family and the IS427 subgroup of the IS5 family, respectively, whereas IS1419 does not appear to be a member of any known IS family. Southern blot analysis of DNAs from B. glumae field isolates indicated that those IS elements are widely distributed, but the host range of the three IS elements appears to be limited to B. glumae and some other related species such as B. plantarii. The polymorphisms exhibited in B. glumae isolates suggest that those elements are useful for molecular epidemiological studies of B. glumae infections.
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Affiliation(s)
- A Hasebe
- Laboratory of Microorganisms Genetic Diversity, National Institute of Agrobiological Resources, Tsukuba, Ibaraki, 305-8602, Japan.
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