Claim · model-written summary
Thirty of ninety Pyrenophora tritici-repentis isolates were insensitive to picoxystrobin in mycelia assays.
- Taxon
- Wheat
Triticum aestivumt0 - Interactor
- Pyrenphora tritici repentise1pathogen
- Outcome
- insensitivity to picoxystrobine0
- Value
- thirty out of the ninetye0
- Setting
- North Dakota, South Dakota, Montana, and Kansase1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Diseases of Wheat”
e0“From the mycelia assays, thirty out of the ninety isolates tested in microtiter plate assays showed insensitivity to picoxystrobin half and full rates with and without Salicylhydroxamic acid (SHAM)”
e1“In a study to establish the sensitivity of Pyrenphora tritici repentis to fungicides, ninety isolates collected from North Dakota, South Dakota, Montana, and Kansas were tested for sensitivity”
Title
Collins Bugingo Open PRAIRIE (South Dakota State University) 2018
Other claims from this paper (18)
- Intervention effect Fungicide seed treatments significantly lowered tan spot disease severity in greenhouse-grown wheat cultivars Select and Brick compared with untreated plants.
- Intervention effect Fungicide seed treatments significantly lowered lesion numbers and lesion size in greenhouse-grown wheat compared with untreated plants.
- Intervention effect Fungicide seed treatments significantly lowered tan spot severity in seed-treated plots compared with non-treated plots in field trials at both locations.
- Intervention effect Fungicide seed treatments increased the number of wheat plants per square metre compared with non-treated plots.
- Intervention effect Winter survival of wheat was significantly higher in fungicide-treated plots than in untreated plots at both locations.
- Intervention effect Fungicide-treated wheat plots had a significantly higher grain yield than untreated plots.
- Intervention effect Pyraclostrobin gave significant tan spot disease control in the greenhouse, with low tan spot severities in treated cones.
- Intervention effect Bacillus subtilis QST713 gave significant tan spot disease control in the greenhouse, with low tan spot severities in treated cones.
- Intervention effect Bacillus amyloquafasciens D747 gave significant tan spot disease control in the greenhouse, with low tan spot severities in treated cones.
- Intervention effect Streptomyces lydicus WYEC 108 gave significant tan spot disease control in the greenhouse, with low tan spot severities in treated cones.
- Intervention effect Azadirachtin had no significant effect on tan spot disease in wheat.
- Intervention effect Plant greenness of wheat was significantly higher in treated plots than in untreated plots.
- Intervention effect Yield of wheat was significantly higher in plots treated with microbial pesticides than in control and untreated plots.
- Observation Spore germination of five Ptr isolates occurred on all fungicides tested.
- Intervention effect Picoxystrobin gave the highest spore germination of Ptr isolates among the fungicides tested.
- Intervention effect The double rate of the fungicides gave the least spore germination percentage across all isolates tested.
- Intervention effect Salicylhydroxamic acid (SHAM) nullified spore germination when added to picoxystrobin.
- Mechanism The prior insensitivity of Ptr to picoxystrobin is attributed to Ptr evading the cytochrome b site of QoI action in the absence of SHAM.