Pathogenicity and Relative Abundance of Dickeya and Pectobacterium Species in Switzerland: An Epidemiological Dichotomy

Pectobacterium and Dickeya species are the causal agents of blackleg and soft rot diseases in potatoes. The main pathogenic species identified so far on potatoes are Dickeya dianthicola, Dickeya solani, Pectobacteri...

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Autores principales:	Patrice de Werra, Christophe Debonneville, Isabelle Kellenberger, Brice Dupuis
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	potato blackleg Soft Rot Pectobacteriaceae pathogenicity Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/42df5905b02746d1a26b747f628dd360
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spelling	oai:doaj.org-article:42df5905b02746d1a26b747f628dd3602021-11-25T18:24:44ZPathogenicity and Relative Abundance of <i>Dickeya</i> and <i>Pectobacterium</i> Species in Switzerland: An Epidemiological Dichotomy10.3390/microorganisms91122702076-2607https://doaj.org/article/42df5905b02746d1a26b747f628dd3602021-10-01T00:00:00Zhttps://www.mdpi.com/2076-2607/9/11/2270https://doaj.org/toc/2076-2607<i>Pectobacterium</i> and <i>Dickeya</i> species are the causal agents of blackleg and soft rot diseases in potatoes. The main pathogenic species identified so far on potatoes are <i>Dickeya dianthicola</i>, <i>Dickeya solani</i>, <i>Pectobacterium atrosepticum</i>, <i>Pectobacterium brasiliense</i>, <i>Pectobacterium carotovorum</i>, and <i>Pectobacterium parmentieri</i>. Ten years ago, the most prevalent Soft Rot Pectobacteriaceae in Europe were the <i>Dickeya</i> species, <i>P. atrosepticum</i> and <i>P. carotovorum</i>, with some variations among countries. Since then, a drastic increase in the abundance of <i>P. brasiliense</i> has been observed in most European countries. This shift is difficult to explain without comparing the pathogenicity of all <i>Dickeya</i> and <i>Pectobacterium</i> species. The pathogenicity of all the above-mentioned bacterial species was assessed in field trials and in vitro tuber slice trials in Switzerland. Two isolates of each species were inoculated by soaking tubers of cv. Desiree in a suspension of 10<sup>5</sup> CFU/mL, before planting in the field. For all trials, the <i>Dickeya</i> species were the most virulent ones, but long-term strain surveys performed in Switzerland indicate that <i>P. brasiliense</i> is currently the most frequent species detected. Our results show that the pathogenicity of the species is not the main factor explaining the high prevalence of <i>P. brasiliense</i> and <i>P. parmentieri</i> in the Swiss potato fields.Patrice de WerraChristophe DebonnevilleIsabelle KellenbergerBrice DupuisMDPI AGarticlepotatoblacklegSoft Rot PectobacteriaceaepathogenicityBiology (General)QH301-705.5ENMicroorganisms, Vol 9, Iss 2270, p 2270 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	potato blackleg Soft Rot Pectobacteriaceae pathogenicity Biology (General) QH301-705.5
spellingShingle	potato blackleg Soft Rot Pectobacteriaceae pathogenicity Biology (General) QH301-705.5 Patrice de Werra Christophe Debonneville Isabelle Kellenberger Brice Dupuis Pathogenicity and Relative Abundance of <i>Dickeya</i> and <i>Pectobacterium</i> Species in Switzerland: An Epidemiological Dichotomy
description	<i>Pectobacterium</i> and <i>Dickeya</i> species are the causal agents of blackleg and soft rot diseases in potatoes. The main pathogenic species identified so far on potatoes are <i>Dickeya dianthicola</i>, <i>Dickeya solani</i>, <i>Pectobacterium atrosepticum</i>, <i>Pectobacterium brasiliense</i>, <i>Pectobacterium carotovorum</i>, and <i>Pectobacterium parmentieri</i>. Ten years ago, the most prevalent Soft Rot Pectobacteriaceae in Europe were the <i>Dickeya</i> species, <i>P. atrosepticum</i> and <i>P. carotovorum</i>, with some variations among countries. Since then, a drastic increase in the abundance of <i>P. brasiliense</i> has been observed in most European countries. This shift is difficult to explain without comparing the pathogenicity of all <i>Dickeya</i> and <i>Pectobacterium</i> species. The pathogenicity of all the above-mentioned bacterial species was assessed in field trials and in vitro tuber slice trials in Switzerland. Two isolates of each species were inoculated by soaking tubers of cv. Desiree in a suspension of 10<sup>5</sup> CFU/mL, before planting in the field. For all trials, the <i>Dickeya</i> species were the most virulent ones, but long-term strain surveys performed in Switzerland indicate that <i>P. brasiliense</i> is currently the most frequent species detected. Our results show that the pathogenicity of the species is not the main factor explaining the high prevalence of <i>P. brasiliense</i> and <i>P. parmentieri</i> in the Swiss potato fields.
format	article
author	Patrice de Werra Christophe Debonneville Isabelle Kellenberger Brice Dupuis
author_facet	Patrice de Werra Christophe Debonneville Isabelle Kellenberger Brice Dupuis
author_sort	Patrice de Werra
title	Pathogenicity and Relative Abundance of <i>Dickeya</i> and <i>Pectobacterium</i> Species in Switzerland: An Epidemiological Dichotomy
title_short	Pathogenicity and Relative Abundance of <i>Dickeya</i> and <i>Pectobacterium</i> Species in Switzerland: An Epidemiological Dichotomy
title_full	Pathogenicity and Relative Abundance of <i>Dickeya</i> and <i>Pectobacterium</i> Species in Switzerland: An Epidemiological Dichotomy
title_fullStr	Pathogenicity and Relative Abundance of <i>Dickeya</i> and <i>Pectobacterium</i> Species in Switzerland: An Epidemiological Dichotomy
title_full_unstemmed	Pathogenicity and Relative Abundance of <i>Dickeya</i> and <i>Pectobacterium</i> Species in Switzerland: An Epidemiological Dichotomy
title_sort	pathogenicity and relative abundance of <i>dickeya</i> and <i>pectobacterium</i> species in switzerland: an epidemiological dichotomy
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/42df5905b02746d1a26b747f628dd360
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Pathogenicity and Relative Abundance of <i>Dickeya</i> and <i>Pectobacterium</i> Species in Switzerland: An Epidemiological Dichotomy

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