Genomic, proteomic and morphological characterization of two novel broad host lytic bacteriophages ΦPD10.3 and ΦPD23.1 infecting pectinolytic Pectobacterium spp. and Dickeya spp.

Robert Czajkowski , Zofia Ozymko , Victor de Jager , Joanna Siwińska , Anna Smolarska , Adam Ossowicki , Magdalena Narajczyk , Ewa Łojkowska

Abstract

Pectinolytic Pectobacterium spp. and Dickeya spp. are necrotrophic bacterial pathogens of many important crops, including potato, worldwide. This study reports on the isolation and characterization of broad host lytic bacteriophages able to infect the dominant Pectobacterium spp. and Dickeya spp. affecting potato in Europe viz. Pectobacterium carotovorum subsp. carotovorum (Pcc), P. wasabiae (Pwa) and Dickeya solani (Dso) with the objective to assess their potential as biological disease control agents. Two lytic bacteriophages infecting stains of Pcc, Pwa and Dso were isolated from potato samples collected from two potato fields in central Poland. The ΦPD10.3 and ΦPD23.1 phages have morphology similar to other members of the Myoviridae family and the Caudovirales order, with a head diameter of 85 and 86 nm and length of tails of 117 and 121 nm, respectively. They were characterized for optimal multiplicity of infection, the rate of adsorption to the Pcc, Pwa and Dso cells, the latent period and the burst size. The phages were genotypically characterized with RAPD-PCR and RFLP techniques. The structural proteomes of both phages were obtained by fractionation of phage proteins by SDS-PAGE. Phage protein identification was performed by liquid chromatography-mass spectrometry (LC-MS) analysis. Pulsed-field gel electrophoresis (PFGE), genome sequencing and comparative genome analysis were used to gain knowledge of the length, organization and function of the ΦPD10.3 and ΦPD23.1 genomes. The potential use of ΦPD10.3 and ΦPD23.1 phages for the biocontrol of Pectobacterium spp. and Dickeya spp. infections in potato is discussed.
Author Robert Czajkowski (IFB / IB / DBiotech)
Robert Czajkowski,,
- Department of Biotechnology
, Zofia Ozymko (IFB)
Zofia Ozymko,,
- Intercollegiate Faculty of Biotechnology UG
, Victor de Jager
Victor de Jager,,
-
, Joanna Siwińska (IFB / IB / DBiotech)
Joanna Siwińska,,
- Department of Biotechnology
, Anna Smolarska (IFB / IB / DBiotech)
Anna Smolarska,,
- Department of Biotechnology
, Adam Ossowicki (IFB)
Adam Ossowicki,,
- Intercollegiate Faculty of Biotechnology UG
, Magdalena Narajczyk (FB / LEM)
Magdalena Narajczyk,,
- Laboratory of Electron Microscopy
, Ewa Łojkowska (IFB / IB / DBiotech)
Ewa Łojkowska,,
- Department of Biotechnology
Journal seriesPlos One, ISSN 1932-6203, (A 35 pkt)
Issue year2015
Vol10
No3
Pages1-23
Publication size in sheets0.3
DOIDOI:10.1371/journal.pone.0119812
URL http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0119812
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)40
ScoreMinisterial score = 40.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2015 = 3.057 (2) - 2015=3.535 (5)
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