Claim · model-written summary
Saccharin applied to first leaves did not directly affect conidial germination or appressorium formation of the mildew fungus.
- Taxon
- barley
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Hordeum vulgaree1 - Treatment
- application of the chemical to first leaves 2 h before inoculatione2
- Interactor
- Blumeria graminis f.sp. hordeiBlumeria hordeie1pathogen
- Outcome
- conidial germination or formation of appressoriae2
- Direction
- no_changeinferrede2
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e1“Treatment of barley ( Hordeum vulgare ) with 3 m m saccharin, applied as a foliar treatment to the first leaf or as a soil drench, provided significant control of powdery mildew ( Blumeria graminis f.sp. hordei ) on first and second leaves”
e2“application of the chemical to first leaves 2 h before inoculation did not affect conidial germination or formation of appressoria”
Title
C. Boyle; D. R. Walters Plant Pathology 2005. doi:10.1111/j.1365-3059.2005.01281.x
Other claims from this paper (10)
- Intervention effect Saccharin treatment provided significant control of barley powdery mildew on first and second leaves.
- Intervention effect Saccharin had no significant effect on barley plant growth.
- Intervention effect Saccharin drench 14 days before inoculation reduced total leaf area of barley.
- Intervention effect Saccharin 14 days earlier significantly reduced phenylalanine ammonia-lyase activity in second leaves at 18 and 48 h after inoculation.
- Intervention effect Peroxidase activity increased significantly in barley challenged with mildew within 6 days of saccharin application.
- Intervention effect Saccharin treatment gave a 33% increase in peroxidase activity compared with controls.
- Intervention effect Cinnamyl alcohol dehydrogenase (CAD) activity increased before and after mildew inoculation in barley treated with saccharin.
- Intervention effect CAD activity in barley treated with saccharin was approximately twofold higher than in controls.
- Intervention effect CAD activity was significantly higher in saccharin-treated barley before and after powdery mildew inoculation.
- Mechanism Saccharin appears to prime CAD activity before pathogen challenge.