Rare Virulences and Great Pathotype Diversity of a Central European Blumeria hordei Population DOI Open Access
Antonín Dreiseitl

Published: Sept. 26, 2023

Barley is an important crop grown on almost 49 Mha worldwide in 2021 and particu-larly significant Europe where powdery mildew the most frequent disease sus-ceptible varieties. The suitable way for protecting crops exploiting genetic re-sistance. However, causal agent Blumeria hordei extremely adaptable pathogen. aims of this research were to increase our knowledge rapidly changing path-ogen population detect rare virulences. Random samples pathogen ob-tained from air by means a mobile spore sampler. Spores collected driv-ing across Czech Republic 2019, 2023 299 isolates analyzed 121 host No infection occurred 35 differentials, virulence was recorded 31 varieties higher frequency found 55 differentials. A core set differentials along with four additional distinguish 295 pathotypes (Simple Index = 0.987) complexity varied 4 19 average 10.39. detection new virulences, increasing previously viru-lences high pathotype diversity as well confirm that using nonspecific durable resistance crucial successfully breeding commercial va-rieties.

Language: Английский

Mlo-Mediated Broad-Spectrum and Durable Resistance against Powdery Mildews and Its Current and Future Applications DOI Creative Commons
Antonín Dreiseitl

Plants, Journal Year: 2024, Volume and Issue: 13(1), P. 138 - 138

Published: Jan. 4, 2024

Mlo is a well-known broad-spectrum recessively inherited monogenic durable resistance to powdery mildew caused by Blumeria hordei found first in barley, originally an induced mutant 1942 and later other mutants also Ethiopian landraces. The commercial varieties possessing were released during 1979–1986, but these often showed symptoms of necrotic leaf spotting associated with reduced grain yield. However, this yield penalty was successfully breeding Mlo-resistant spring barley predominate Europe; for example, the Czech Republic, their ratio surpassed 90% total number newly varieties. outside Europe, Mlo-varieties are not yet popular can be exploited more widely. Winter generally non-resistant, use controversial despite limited adaptability pathogen resistance. renewal mechanically disturbed epidermal plant cell walls, including penetration mildews, common plants, Mlo-type many crop species, wheat.

Language: Английский

Citations

7
Rare Virulences and Great Pathotype Diversity of a Central European Blumeria hordei Population DOI Open Access
Antonín Dreiseitl

Published: Sept. 26, 2023

Barley is an important crop grown on almost 49 Mha worldwide in 2021 and particu-larly significant Europe where powdery mildew the most frequent disease sus-ceptible varieties. The suitable way for protecting crops exploiting genetic re-sistance. However, causal agent Blumeria hordei extremely adaptable pathogen. aims of this research were to increase our knowledge rapidly changing path-ogen population detect rare virulences. Random samples pathogen ob-tained from air by means a mobile spore sampler. Spores collected driv-ing across Czech Republic 2019, 2023 299 isolates analyzed 121 host No infection occurred 35 differentials, virulence was recorded 31 varieties higher frequency found 55 differentials. A core set differentials along with four additional distinguish 295 pathotypes (Simple Index = 0.987) complexity varied 4 19 average 10.39. detection new virulences, increasing previously viru-lences high pathotype diversity as well confirm that using nonspecific durable resistance crucial successfully breeding commercial va-rieties.

Language: Английский

Citations

2