Cargando…

Early Emergence of Dickeya solani Revealed by Analysis of Dickeya Diversity of Potato Blackleg and Soft Rot Causing Pathogens in Switzerland

Blackleg and soft rot in potato caused by Pectobacterium and Dickeya enterobacteral genera are among the most destructive bacterial diseases in this crop worldwide. In Europe, over the last century, Pectobacterium spp. were the predominant causal agents of these diseases. As for Dickeya, before the...

Descripción completa

Detalles Bibliográficos
Autores principales: Pédron, Jacques, Schaerer, Santiago, Kellenberger, Isabelle, Van Gijsegem, Frédérique
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8226965/
https://www.ncbi.nlm.nih.gov/pubmed/34072830
http://dx.doi.org/10.3390/microorganisms9061187
_version_ 1783712412863561728
author Pédron, Jacques
Schaerer, Santiago
Kellenberger, Isabelle
Van Gijsegem, Frédérique
author_facet Pédron, Jacques
Schaerer, Santiago
Kellenberger, Isabelle
Van Gijsegem, Frédérique
author_sort Pédron, Jacques
collection PubMed
description Blackleg and soft rot in potato caused by Pectobacterium and Dickeya enterobacteral genera are among the most destructive bacterial diseases in this crop worldwide. In Europe, over the last century, Pectobacterium spp. were the predominant causal agents of these diseases. As for Dickeya, before the large outbreak caused by D. solani in the 2000s, only D. dianthicola was isolated in Europe. The population dynamics of potato blackleg causing soft rot Pectobacteriaceae was, however, different in Switzerland as compared to that in other European countries with a high incidence (60 up to 90%) of Dickeya species (at the time called Erwinia chrysanthemi) already in the 1980s. To pinpoint what may underlie this Swiss peculiarity, we analysed the diversity present in the E. chrysanthemi Agroscope collection gathering potato isolates from 1985 to 2000s. Like elsewhere in Europe during this period, the majority of Swiss isolates belonged to D. dianthicola. However, we also identified a few isolates, such as D. chrysanthemi and D. oryzeae, two species that have not yet been reported in potatoes in Europe. Interestingly, this study allowed the characterisation of two “early” D. solani isolated in the 1990s. Genomic comparison between these early D. solani strains and strains isolated later during the large outbreak in the 2000s in Europe revealed only a few SNP and gene content differences, none of them affecting genes known to be important for virulence.
format Online
Article
Text
id pubmed-8226965
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-82269652021-06-26 Early Emergence of Dickeya solani Revealed by Analysis of Dickeya Diversity of Potato Blackleg and Soft Rot Causing Pathogens in Switzerland Pédron, Jacques Schaerer, Santiago Kellenberger, Isabelle Van Gijsegem, Frédérique Microorganisms Article Blackleg and soft rot in potato caused by Pectobacterium and Dickeya enterobacteral genera are among the most destructive bacterial diseases in this crop worldwide. In Europe, over the last century, Pectobacterium spp. were the predominant causal agents of these diseases. As for Dickeya, before the large outbreak caused by D. solani in the 2000s, only D. dianthicola was isolated in Europe. The population dynamics of potato blackleg causing soft rot Pectobacteriaceae was, however, different in Switzerland as compared to that in other European countries with a high incidence (60 up to 90%) of Dickeya species (at the time called Erwinia chrysanthemi) already in the 1980s. To pinpoint what may underlie this Swiss peculiarity, we analysed the diversity present in the E. chrysanthemi Agroscope collection gathering potato isolates from 1985 to 2000s. Like elsewhere in Europe during this period, the majority of Swiss isolates belonged to D. dianthicola. However, we also identified a few isolates, such as D. chrysanthemi and D. oryzeae, two species that have not yet been reported in potatoes in Europe. Interestingly, this study allowed the characterisation of two “early” D. solani isolated in the 1990s. Genomic comparison between these early D. solani strains and strains isolated later during the large outbreak in the 2000s in Europe revealed only a few SNP and gene content differences, none of them affecting genes known to be important for virulence. MDPI 2021-05-31 /pmc/articles/PMC8226965/ /pubmed/34072830 http://dx.doi.org/10.3390/microorganisms9061187 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Pédron, Jacques
Schaerer, Santiago
Kellenberger, Isabelle
Van Gijsegem, Frédérique
Early Emergence of Dickeya solani Revealed by Analysis of Dickeya Diversity of Potato Blackleg and Soft Rot Causing Pathogens in Switzerland
title Early Emergence of Dickeya solani Revealed by Analysis of Dickeya Diversity of Potato Blackleg and Soft Rot Causing Pathogens in Switzerland
title_full Early Emergence of Dickeya solani Revealed by Analysis of Dickeya Diversity of Potato Blackleg and Soft Rot Causing Pathogens in Switzerland
title_fullStr Early Emergence of Dickeya solani Revealed by Analysis of Dickeya Diversity of Potato Blackleg and Soft Rot Causing Pathogens in Switzerland
title_full_unstemmed Early Emergence of Dickeya solani Revealed by Analysis of Dickeya Diversity of Potato Blackleg and Soft Rot Causing Pathogens in Switzerland
title_short Early Emergence of Dickeya solani Revealed by Analysis of Dickeya Diversity of Potato Blackleg and Soft Rot Causing Pathogens in Switzerland
title_sort early emergence of dickeya solani revealed by analysis of dickeya diversity of potato blackleg and soft rot causing pathogens in switzerland
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8226965/
https://www.ncbi.nlm.nih.gov/pubmed/34072830
http://dx.doi.org/10.3390/microorganisms9061187
work_keys_str_mv AT pedronjacques earlyemergenceofdickeyasolanirevealedbyanalysisofdickeyadiversityofpotatoblacklegandsoftrotcausingpathogensinswitzerland
AT schaerersantiago earlyemergenceofdickeyasolanirevealedbyanalysisofdickeyadiversityofpotatoblacklegandsoftrotcausingpathogensinswitzerland
AT kellenbergerisabelle earlyemergenceofdickeyasolanirevealedbyanalysisofdickeyadiversityofpotatoblacklegandsoftrotcausingpathogensinswitzerland
AT vangijsegemfrederique earlyemergenceofdickeyasolanirevealedbyanalysisofdickeyadiversityofpotatoblacklegandsoftrotcausingpathogensinswitzerland