Claim · model-written summary
The SDHI fungicide boscalid effectively inhibited growth of both azoxystrobin-resistant and sensitive A. alternata isolates.
- Taxon
- Alternaria alternata
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Alternaria alternatat0 - Treatment
- SDHI fungicide boscalide0
- Outcome
- growthe0
- Direction
- inhibitede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“SDHI fungicide boscalid, effectively inhibited growth in both azoxystrobin-resistant and sensitive isolates”
t0“Alternaria alternata”
Title
Mubashar Hussain; Fan-Zhu Meng; Bingyu Zhao; et al. Plant Disease 2026. doi:10.1094/pdis-02-26-0241-re
Other claims from this paper (15)
- Observation Of 109 Alternaria alternata isolates from cherry, 74 (67.89%) were highly resistant to azoxystrobin.
- Observation All A. alternata isolates were highly resistant to the MBC fungicide carbendazim.
- Observation Resistance of A. alternata isolates to the DMI fungicide hexaconazole occurred at a lower frequency.
- Observation All A. alternata isolates were sensitive to the SDHI fungicide boscalid.
- Association Positive cross-resistance was observed between azoxystrobin and pyraclostrobin among A. alternata isolates.
- Association No correlation in sensitivity was detected between azoxystrobin and other classes of fungicides in A. alternata isolates.
- Association No significant differences were observed between azoxystrobin sensitive and resistant isolates in mycelial growth, sporulation and oxidative stress tolerance.
- Association Azoxystrobin-resistant isolates showed significantly lower inhibition by NaCl-induced osmotic stress than sensitive isolates.
- Intervention effect In the detached cherry fruit assay, azoxystrobin was highly effective against azoxystrobin-sensitive A. alternata isolates.
- Intervention effect In the detached cherry fruit assay, azoxystrobin had greatly reduced control efficacy against azoxystrobin-resistant A. alternata isolates.
- Association RT-qPCR showed no significant difference in AaCyt b expression between sensitive and resistant A. alternata isolates.
- Observation Sequencing of the AaCyt b gene confirmed the G143A mutation in azoxystrobin-resistant A. alternata isolates.
- Mechanism The authors conclude that the G143A mutation confers high resistance to azoxystrobin with limited fitness penalties.
- Mechanism The authors conclude that the mutation does not confer cross resistance to DMI, MBC, or SDHI fungicides.
- Recommendation SDHI fungicides remain the best option to control A. alternata.