Abstract
Fusarium head blight (FHB) is one of the most devastating diseases of cereal crops worldwide, causing yield losses and mycotoxin contamination. Traditionally associated with warm and humid climates, FHB has increasingly affected cooler and drier regions, including the Volga region of Russia—a major grain-producing area once considered low-risk. In this three-year field study, we evaluated FHB resistance in 50 winter rye accessions under natural infection and artificially enriched infectious backgrounds using high-virulence Fusarium strains from the Volga region. Post-invasive resistance to FHB was generally weak across the tested germplasm. Nevertheless, considerable variability in FHB damage was observed among accessions. Accessions showing the lowest overall FHB severity were identified as promising donors for breeding programs. Specific resistance sources to individual Fusarium species were identified, notably Fusarium sporotrichioides—previously regarded as a weak pathogen but demonstrated here as a serious food safety threat. No significant positive correlation was found between FHB severity and mycotoxin levels, confirming these as partially independent traits; several accessions maintained low mycotoxin content despite severe symptoms. Our study highlights the necessity of multi-environment screening with local pathogen strains and endorses pyramiding approaches for durable FHB resistance in winter rye breeding.
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Claims 9
Claim · model-written summary
Post-invasive resistance to Fusarium head blight was generally weak in winter rye
- Taxon
- winter rye
Secale cerealee0 - Outcome
- Post-invasive resistance to FHBe2
- Qualifier
- generally weake2
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 50 winter rye accessions under natural infection”
e1“Fusarium head blight (FHB) is one of the most devastating diseases of cereal crops worldwide”
e2“Post-invasive resistance to FHB was generally weak across the tested germplasm”
Claim · model-written summary
Winter rye accessions vary considerably in Fusarium head blight damage
- Taxon
- winter ryeSecale cerealee0
- Outcome
- FHB damagee3
- Qualifier
- considerable variabilitye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 50 winter rye accessions under natural infection”
e1“Fusarium head blight (FHB) is one of the most devastating diseases of cereal crops worldwide”
e3“Nevertheless, considerable variability in FHB damage was observed among accessions”
Claim · model-written summary
Some winter rye accessions have the lowest overall FHB severity and are promising breeding donors
- Taxon
- winter ryeSecale cerealee0
- Outcome
- overall FHB severitye4
- Direction
- loweste4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 50 winter rye accessions under natural infection”
e4“Accessions showing the lowest overall FHB severity were identified as promising donors for breeding programs”
Claim · model-written summary
Specific resistance sources to individual Fusarium species were identified in winter rye
- Taxon
- winter ryeSecale cerealee0
- Outcome
- resistance sourcese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 50 winter rye accessions under natural infection”
e5“Specific resistance sources to individual Fusarium species were identified”
Claim · model-written summary
Fusarium sporotrichioides is a serious food safety threat in winter rye
- Taxon
- winter ryeSecale cerealee0
- Interactor
- Fusarium sporotrichioidesFusarium sporotrichioidese5pathogen
- Outcome
- serious food safety threate6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 50 winter rye accessions under natural infection”
e5“notably Fusarium sporotrichioides”
e6“demonstrated here as a serious food safety threat”
Claim · model-written summary
FHB severity and mycotoxin levels show no significant positive correlation in winter rye
- Taxon
- winter ryeSecale cerealee0
- Compound
- mycotoxine6
- Outcome
- FHB severity and mycotoxin levelse6
- Direction
- no_changeinferrede6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 50 winter rye accessions under natural infection”
e6“No significant positive correlation was found between FHB severity and mycotoxin levels, confirming these as partially independent traits”
Claim · model-written summary
Several winter rye accessions keep low mycotoxin content despite severe FHB symptoms
- Taxon
- winter ryeSecale cerealee0
- Outcome
- mycotoxin contente7
- Direction
- lowe7
- Qualifier
- despite severe symptomse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 50 winter rye accessions under natural infection”
e7“several accessions maintained low mycotoxin content despite severe symptoms”
Claim · model-written summary
Multi-environment screening with local pathogen strains is necessary for winter rye FHB resistance (author recommendation)
- Taxon
- winter ryeSecale cerealee0
- Outcome
- multi-environment screening with local pathogen strainse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in 50 winter rye accessions under natural infection”
e7“Our study highlights the necessity of multi-environment screening with local pathogen strains”
Claim · model-written summary
Pyramiding approaches are endorsed for durable FHB resistance in winter rye (author recommendation)
- Taxon
- winter ryeSecale cerealee7
- Outcome
- durable FHB resistancee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“endorses pyramiding approaches for durable FHB resistance in winter rye breeding”