Claim · model-written summary
Trans-ε-viniferin increased at berries beginning to touch versus untreated asymptomatic vines.
- Organ / stage
- ‘berries beginning to touch’ stagee0
- Treatment
- a mixture of leaf fertilizers containing calcium, magnesium and seaweed extractse1
- Outcome
- trans-ε-viniferine0
- Direction
- increasede0
- Comparator
- untreated asymptomatic vinese0
VitisNot reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“trans-ε-viniferin and trans-δ-viniferin increased at the ‘berries beginning to touch’ stage, compared to the contents recorded in untreated asymptomatic vines.”
t0“Grapevine”
t1“Grapevine leaf stripe disease”
e1“vines in two vineyards were treated with nine applications of a mixture of leaf fertilizers containing calcium, magnesium and seaweed extracts. At different growth stages, leaves were sampled from treated and control plots of healthy, GLSD-asymptomatic, or GLSD-symptomatic vines”
e2“Grapevine leaf stripe disease (GLSD) is a tracheomycosis caused by Phaeomoniella chlamydospora and Phaeoacremonium minimum.”
Title
Francesco Calzarano; F. Osti; Vincenzo D’Agostino; et al. DOAJ (DOAJ: Directory of Open Access Journals) 2017. doi:10.14601/phytopathol_mediterr-22023
Other claims from this paper (11)
- Association Grape yield impacts correlated with the incidence of canopy GLSD symptoms.
- Association Grape yield impacts correlated with canopy GLSD symptom severity.
- Intervention effect The mineral–seaweed treatment significantly reduced canopy symptom expression.
- Intervention effect Treated vines had increased leaf phytoalexin content from fruit set to berries developing colour.
- Observation Trans-resveratrol peaked in asymptomatic diseased vines at berries pea-sized stage.
- Intervention effect Trans-δ-viniferin increased at berries beginning to touch versus untreated asymptomatic vines.
- Intervention effect From berries developing colour through harvest, treated vines had less phytoalexin than controls.
- Intervention effect At harvest, treated healthy vines had berry sugar levels similar to untreated vines.
- Intervention effect At harvest, treated symptomatic vines had berry sugar levels similar to untreated vines.
- Intervention effect Treated asymptomatic vines produced berries with more total sugar than untreated vines.
- Mechanism The authors suggested increased early phytoalexins in mixture-treated asymptomatic vines may reduce GLSD symptoms.