Pathotypes and races of Pseudoperonospora cubensis: Two concepts of virulence differentiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73626703" target="_blank" >RIV/61989592:15310/24:73626703 - isvavai.cz</a>

Výsledek na webu

<a href="https://bsppjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/ppa.13993" target="_blank" >https://bsppjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/ppa.13993</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ppa.13993" target="_blank" >10.1111/ppa.13993</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pathotypes and races of Pseudoperonospora cubensis: Two concepts of virulence differentiation

Popis výsledku v původním jazyce

Pseudoperonospora cubensis, causal agent of cucurbit downy mildew, is a common and highly variable pathogen of cucurbit vegetables. Pathogen virulence can be considered on two different levels, that is, pathotypes and races. Pathotypes characterize the interactions between pathogen isolates and the set of genotypes represented by different species and/or genera of the host plant family. Races are characterized by the interactions between pathogen isolates and the set of genotypes (e.g., cultivars, lines, accessions) of one host species (or very closely related species). Differential sets for pathotype and/or race determination are composed of distinct (different) genotypes. Until recently, only differentiation of pathotypes was used to characterize P. cubensis. Most recent research of virulence variation in P. cubensis populations in the Czech Republic working with the Cucumis melo differential set demonstrated the existence of a large number of races of this pathogen. The differential capacity of this set was primarily created for the determination and denomination of virulence phenotypes/races of cucurbit powdery mildew (Golovinomyces orontii, Podosphaera xanthii). However, this set is also efficient for differentiating virulence phenotypes in P. cubensis. This means that one set of C. melo differential genotypes can be used for two independent plant-pathogen systems: cucurbit powdery mildew and cucurbit downy mildew. Results showed that isolates of P. cubensis developing identical virulence reaction patterns at the level of pathotype, develop different reaction patterns at the level of races and vice versa. It is demonstrated and explained that pathotypes and races are two different categories for the assessment of virulence variation, which should be clearly defined, recognized and used within international scientific and breeding communities.

Název v anglickém jazyce

Pathotypes and races of Pseudoperonospora cubensis: Two concepts of virulence differentiation

Popis výsledku anglicky

Pseudoperonospora cubensis, causal agent of cucurbit downy mildew, is a common and highly variable pathogen of cucurbit vegetables. Pathogen virulence can be considered on two different levels, that is, pathotypes and races. Pathotypes characterize the interactions between pathogen isolates and the set of genotypes represented by different species and/or genera of the host plant family. Races are characterized by the interactions between pathogen isolates and the set of genotypes (e.g., cultivars, lines, accessions) of one host species (or very closely related species). Differential sets for pathotype and/or race determination are composed of distinct (different) genotypes. Until recently, only differentiation of pathotypes was used to characterize P. cubensis. Most recent research of virulence variation in P. cubensis populations in the Czech Republic working with the Cucumis melo differential set demonstrated the existence of a large number of races of this pathogen. The differential capacity of this set was primarily created for the determination and denomination of virulence phenotypes/races of cucurbit powdery mildew (Golovinomyces orontii, Podosphaera xanthii). However, this set is also efficient for differentiating virulence phenotypes in P. cubensis. This means that one set of C. melo differential genotypes can be used for two independent plant-pathogen systems: cucurbit powdery mildew and cucurbit downy mildew. Results showed that isolates of P. cubensis developing identical virulence reaction patterns at the level of pathotype, develop different reaction patterns at the level of races and vice versa. It is demonstrated and explained that pathotypes and races are two different categories for the assessment of virulence variation, which should be clearly defined, recognized and used within international scientific and breeding communities.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/QH71229" target="_blank" >QH71229: Diagnostika a metody integrované ochrany proti karanténním a dalším ekonomicky významným patogenům plodové a listové zeleniny</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

PLANT PATHOLOGY

ISSN

0032-0862

e-ISSN

1365-3059

Svazek periodika

73

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

2537-2547

Kód UT WoS článku

001305651500001

EID výsledku v databázi Scopus

2-s2.0-85203057347