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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

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

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2017

Confidentiality

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

Name of the periodical

Acta Horticulturae

ISSN

0567-7572

e-ISSN

—

Volume of the periodical

2017

Issue of the periodical within the volume

1151

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

203-210

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85017530091