isolation of dickeya dadantii strains from potato disease and biocontrol by their bacteriophages

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ID: 158307
2015
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Abstract

One of the most economically important bacterial pathogens of plants and plant products is Dickeya dadantii. This bacterium causes soft rot disease in tubers and other parts of the potato and other plants of the Solanaceae family. The application of restricted host range bacteriophages as biocontrol agents has recently gained widespread interest. This study purposed to isolate the infectious agent of the potato and evaluate its biocontrol by bacteriophages. Two phytopathogenic strains were isolated from infected potatoes, identified based on biochemical and 16S rRNA gene sequencing, and submitted to GenBank as D. dadantii strain pis3 (accession no. HQ423668) and D. dadantii strain sip4 (accession no. HQ423669). Their bacteriophages were isolated from Caspian Sea water by enriching the water filtrate with D. dadantii strains as hosts using spot or overlay methods. On the basis of morphotypes, the isolated bacteriophages were identified as members of the Myoviridae and Siphoviridae families and could inhibit the growth of antibiotic resistant D. dadantii strains in culture medium. Moreover, in Dickeya infected plants treated with bacteriophage, no disease progression was detected. No significant difference was seen between phage-treated and control plants. Thus, isolated bacteriophages can be suggested for the biocontrol of plant disease caused by Dickeya strains.

Reference Key
soleimani-delfan2015brazilianisolation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Abbas Soleimani-Delfan;Zahra Etemadifar;Giti Emtiazi;Majid Bouzari
Journal ieee software
Year 2015
DOI
10.1590/S1517-838246320140498
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300791&lng=en&tlng=en
Keywords
antibiotic resistance bacteriophage

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