The occurrence of lines tolerant to the causal agent of bleeding canker, Pseudomonas syringae pv. aesculi, in a natural horse chestnut population in Central Europe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F15%3A00003215" target="_blank" >RIV/00027006:_____/15:00003215 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00027073:_____/15:#0001803

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10658-014-0587-2" target="_blank" >http://dx.doi.org/10.1007/s10658-014-0587-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10658-014-0587-2" target="_blank" >10.1007/s10658-014-0587-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The occurrence of lines tolerant to the causal agent of bleeding canker, Pseudomonas syringae pv. aesculi, in a natural horse chestnut population in Central Europe

Popis výsledku v původním jazyce

Pseudomonas syringae pv. aesculi (Pae) causes bleeding canker, a destructive disease of horse chestnut trees (Aesculus hippocastanum) that limits the breeding of horse chestnut genotypes. The susceptibility of 322 F1 progeny from 20 horse chestnut parent tree sources to the pathogen Pae was evaluated using different inoculation methods. The resulting infection rates, in decreasing order, were caused by inoculation of apical buds, inoculation of annual stems, insertion of bacteria into cut wounds on trunks and foliar spraying of the pathogen. According to the resistance index (RI) results of the field pathogenicity tests, at 2 or 3 years after inoculation 40, 40 and 20 % of horse chestnut parent tree sources were resistant, tolerant and susceptible, respectively, to Pae. Microbiological analyses of plant tissues from buds, phloem in the main trunks and roots of infected F1 progeny regardless of parent tree source showed long-term survival of Pae bacteria in 70 % of tolerant F1 progeny plants that lacked bleeding canker symptoms. Initial RI results and microbial analyses indicated that there was some frequency of resistance in the natural horse chestnut population. Altogether, 41 F1 progeny were the most promising lines based on their viability and the absence of Pae in their tissues.

Název v anglickém jazyce

The occurrence of lines tolerant to the causal agent of bleeding canker, Pseudomonas syringae pv. aesculi, in a natural horse chestnut population in Central Europe

Popis výsledku anglicky

Pseudomonas syringae pv. aesculi (Pae) causes bleeding canker, a destructive disease of horse chestnut trees (Aesculus hippocastanum) that limits the breeding of horse chestnut genotypes. The susceptibility of 322 F1 progeny from 20 horse chestnut parent tree sources to the pathogen Pae was evaluated using different inoculation methods. The resulting infection rates, in decreasing order, were caused by inoculation of apical buds, inoculation of annual stems, insertion of bacteria into cut wounds on trunks and foliar spraying of the pathogen. According to the resistance index (RI) results of the field pathogenicity tests, at 2 or 3 years after inoculation 40, 40 and 20 % of horse chestnut parent tree sources were resistant, tolerant and susceptible, respectively, to Pae. Microbiological analyses of plant tissues from buds, phloem in the main trunks and roots of infected F1 progeny regardless of parent tree source showed long-term survival of Pae bacteria in 70 % of tolerant F1 progeny plants that lacked bleeding canker symptoms. Initial RI results and microbial analyses indicated that there was some frequency of resistance in the natural horse chestnut population. Altogether, 41 F1 progeny were the most promising lines based on their viability and the absence of Pae in their tissues.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GF - Choroby, škůdci, plevely a ochrana rostlin

OECD FORD obor

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Projekt

<a href="/cs/project/QI92A246" target="_blank" >QI92A246: Riziko odumírání jírovce maďalu Aesculus hippocastanum následkem bleeding canker spojeného s infekcí Pseudomonas syringae pv. aesculi v ČR.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

European Journal of Plant Pathology

ISSN

0929-1873

e-ISSN

—

Svazek periodika

142

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

37-47

Kód UT WoS článku

000351752300004

EID výsledku v databázi Scopus

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