Race-specificity in interactions between Cucumis melo germplasm and Pseudoperonospora cubensis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73582540" target="_blank" >RIV/61989592:15310/17:73582540 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.17660/ActaHortic.2017.1151.32" target="_blank" >http://dx.doi.org/10.17660/ActaHortic.2017.1151.32</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17660/ActaHortic.2017.1151.32" target="_blank" >10.17660/ActaHortic.2017.1151.32</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Race-specificity in interactions between Cucumis melo germplasm and Pseudoperonospora cubensis

Popis výsledku v původním jazyce

Pseudoperonospora cubensis, the causal agent of cucurbit downy mildew, is one of the most economically important plant pathogens. Muskmelon (Cucumis melo) is seriously affected by P. cubensis. Within C. melo, several genotypes resistant to P. cubensis have been described; however, we lack detailed experimental studies focused on deciphering variation in this host-pathogen interaction. This study aims to describe race-specific variation in interactions between C. melo germplasm and isolates of P. cubensis. Under controlled inoculation, 52 accessions of C. melo were studied for resistance/susceptibility to 8 isolates of P. cubensis. The plant material was obtained from the USDA Plant Introduction Station, Iowa, Ames, USA. Pathogen isolates originated from the Czech Republic (7 isolates) and France (1 isolate) and represented 8 distinct pathotypes as determined following Lebeda and Widrlechner (2003). Collectively, 8 different race-specific reaction patterns were recorded. Most of C. melo accessions (in total 39) were highly susceptible to all isolates. None of screened C. melo accessions expressed complete resistance to all isolates. Only accession PI 315410 (VIR 5682) was found to be highly resistant to 7 of the 8 P. cubensis isolates. The study: a) confirmed the race-specificity of interactions between C. melo and P. cubensis, b) established a sound framework for the development of a system to determine and classify P. cubensis races, and, in turn, c) should foster further broad screening of C. melo germplasm with a likelihood of detecting more effective sources of resistance to important pathotypes and races of P. cubensis.

Název v anglickém jazyce

Race-specificity in interactions between Cucumis melo germplasm and Pseudoperonospora cubensis

Popis výsledku anglicky

Pseudoperonospora cubensis, the causal agent of cucurbit downy mildew, is one of the most economically important plant pathogens. Muskmelon (Cucumis melo) is seriously affected by P. cubensis. Within C. melo, several genotypes resistant to P. cubensis have been described; however, we lack detailed experimental studies focused on deciphering variation in this host-pathogen interaction. This study aims to describe race-specific variation in interactions between C. melo germplasm and isolates of P. cubensis. Under controlled inoculation, 52 accessions of C. melo were studied for resistance/susceptibility to 8 isolates of P. cubensis. The plant material was obtained from the USDA Plant Introduction Station, Iowa, Ames, USA. Pathogen isolates originated from the Czech Republic (7 isolates) and France (1 isolate) and represented 8 distinct pathotypes as determined following Lebeda and Widrlechner (2003). Collectively, 8 different race-specific reaction patterns were recorded. Most of C. melo accessions (in total 39) were highly susceptible to all isolates. None of screened C. melo accessions expressed complete resistance to all isolates. Only accession PI 315410 (VIR 5682) was found to be highly resistant to 7 of the 8 P. cubensis isolates. The study: a) confirmed the race-specificity of interactions between C. melo and P. cubensis, b) established a sound framework for the development of a system to determine and classify P. cubensis races, and, in turn, c) should foster further broad screening of C. melo germplasm with a likelihood of detecting more effective sources of resistance to important pathotypes and races of P. cubensis.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Acta Horticulturae

ISSN

0567-7572

e-ISSN

—

Svazek periodika

2017

Číslo periodika v rámci svazku

1151

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

203-210

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85017530091