Abstract
Vine training and pruning are cultural strategies that can be deployed to manage grapevine trunk diseases (GTDs). Forty-year-old commercial vineyards in the Cognac region, France, trained to either Guyot-Arcure (severe pruning) or Guyot-Poussard (minimal pruning), were studied to determine how the two systems affected trunk disease symptomatology. Effects of pruning practices on the pathobiome and mycobiome of asymptomatic grapevines were also assessed, using culture- and amplicon-based Illumina sequencing approaches. The hypothesis examined was that severe pruning of Guyot-Arcure increases trunk diseases incidence and severity, and causes higher pathogen load and microbial diversity, compared to Guyot-Poussard. Numbers of symptomatic and asymptomatic vines for the two training systems were recorded over 3 years, including numbers of vines with esca foliar symptoms, and partially unproductive and dead vines. Six asymptomatic vines from each pruning method were selected, and culturing and sequencing data were obtained from 27 samples per vine. Fungi in the Phaeomoniellaceae, Togniniaceae, and Botryosphaeriaceae were the most frequently identified. The data indicated that severe pruning increased risk of pathogen infections, with Phaeomoniella chlamydospora, Phaeoacremonium minimum and Diplodia sp. being the most commonly identified fungi. Greater numbers of dead or dying vines were recorded in the severely pruned vineyard, indicating that this strategy shortens vine longevity. Results also showed that severe pruning increased endophytic microbial diversity, and that the pruning methods influenced mycobiome community composition. This knowledge will improve recommendations to growers for practical and cost-effective ways to manage GTDs.
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Claims 5
Claim · model-written summary
Phaeomoniellaceae, Togniniaceae, and Botryosphaeriaceae were the fungi most frequently identified in grapevines.
- Interactor
- PhaeomoniellaceaePhaeomoniellaceaee0pathogen
- Outcome
- most frequently identifiede0
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fungi in the Phaeomoniellaceae, Togniniaceae, and Botryosphaeriaceae were the most frequently identified.”
t0“Grapevine”
Claim · model-written summary
risk of pathogen infections differed under severe pruning.
- Treatment
- severe pruninge0
- Interactor
- Phaeomoniella chlamydosporaPhaeomoniella chlamydosporae0
- Outcome
- risk of pathogen infectionse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The data indicated that severe pruning increased risk of pathogen infections, with Phaeomoniella chlamydospora, Phaeoacremonium minimum and Diplodia sp. being the most commonly identified fungi.”
t0“Grapevine”
Claim · model-written summary
dead or dying vines differed under severe pruning.
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greater numbers of dead or dying vines were recorded in the severely pruned vineyard, indicating that this strategy shortens vine longevity.”
t0“Grapevine”
e2“The data indicated that severe pruning increased risk of pathogen infections, with Phaeomoniella chlamydospora, Phaeoacremonium minimum and Diplodia sp. being the most commonly identified fungi.”
Claim · model-written summary
endophytic microbial diversity differed under severe pruning.
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results also showed that severe pruning increased endophytic microbial diversity, and that the pruning methods influenced mycobiome community composition.”
t0“Grapevine”
Claim · model-written summary
mycobiome community composition differed under severe pruning.
Not reportedInteractorComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results also showed that severe pruning increased endophytic microbial diversity, and that the pruning methods influenced mycobiome community composition.”
t0“Grapevine”
The same questions in other papers
pruning · Phaeomoniella chlamydospora · VitisPositive and negative results
1 in the opposite direction
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.