Abstract
The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L. Grapevine rootstocks were developed to provide increased resistance to root disease, but rootstock effects on cane and vine diseases remain unclear. Grapevines that consisted of Cabernet Sauvignon or Chardonnay grafted to 13 different rootstocks were inoculated with Xf and evaluated for PD severity and Xf titer after 6 months. A subset of six rootstock/scion combinations had xylem sap phenolic levels assessed in non-infected and Xf-infected grapevines. Vigor also was analyzed by measuring root lengths and masses. Cabernet Sauvignon grafted to 101-14MG, 1103P, 420A, or Schwarzmann had reduced PD severity compared to Cabernet Sauvignon grafted to 110R, 5BB, or SO4. Chardonnay grafted to Salt Creek or Freedom had reduced PD severity compared to Chardonnay grafted to RS3 or Schwarzmann. Chardonnay grafted to RS3 had greater Xf titer than Chardonnay grafted to 101-14MG, Freedom, or Salt Creek. No other differences in Xf titer among rootstocks were observed. Of the six scion/rootstock combinations which had xylem sap phenolics analyzed, Chardonnay/RS3 had the highest levels of most phenolics whereas Cabernet Sauvignon/101-14MG had the lowest phenolic levels. However, Chardonnay/101-14MG, which had mild PD symptoms, had greater sap levels of caftaric acid than other scion/rootstock combinations. Sap levels of caftaric acid, methyl salicylate, a procyanidin trimer, and quinic acid were greater in Xf-infected vs. non-infected grapevines. Chardonnay on 101-14MG or Salt Creek had greater root mass than Chardonnay on RS3. Cabernet Sauvignon on 101-14MG had greater root mass than Cabernet Sauvignon on 110R. These results identified rootstocks with the capacity for reducing PD symptom progression. Rootstocks also were shown to affect Xf titer, xylem sap phenolic levels, and plant vigor.
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Claims 12
Claim · model-written summary
Cabernet Sauvignon grafted to rootstocks 101-14MG, 1103P, 420A or Schwarzmann had reduced Pierce's disease severity compared with rootstocks 110R, 5BB or SO4.
- Taxon
- Vitis vinifera
Vitis viniferae0 - Material
- Cabernet Sauvignone1
- Treatment
- 101-14MG, 1103P, 420A, or Schwarzmanne1
- Interactor
- Xylella fastidiosa
Xylella fastidiosae0pathogen - Outcome
- PD severitye1
- Direction
- reducede1
- Comparator
- 110R, 5BB, or SO4e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e1“Cabernet Sauvignon grafted to 101-14MG, 1103P, 420A, or Schwarzmann had reduced PD severity compared to Cabernet Sauvignon grafted to 110R, 5BB, or SO4”
Claim · model-written summary
Chardonnay grafted to rootstocks Salt Creek or Freedom had reduced Pierce's disease severity compared with RS3 or Schwarzmann.
- Taxon
- Vitis viniferaVitis viniferae0
- Material
- Chardonnaye2
- Treatment
- Salt Creek or Freedome2
- Interactor
- Xylella fastidiosaXylella fastidiosae0pathogen
- Outcome
- PD severitye2
- Direction
- reducede2
- Comparator
- RS3 or Schwarzmanne2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e2“Chardonnay grafted to Salt Creek or Freedom had reduced PD severity compared to Chardonnay grafted to RS3 or Schwarzmann”
Claim · model-written summary
Chardonnay grafted to RS3 had greater Xylella fastidiosa titer than Chardonnay on 101-14MG, Freedom or Salt Creek.
- Taxon
- Vitis viniferaVitis viniferae0
- Material
- Chardonnaye3
- Treatment
- RS3e3
- Interactor
- Xylella fastidiosaXylella fastidiosae0pathogen
- Outcome
- Xf titere3
- Direction
- greatere3
- Comparator
- 101-14MG, Freedom, or Salt Creeke3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e3“Chardonnay grafted to RS3 had greater Xf titer than Chardonnay grafted to 101-14MG, Freedom, or Salt Creek”
Claim · model-written summary
Apart from the differences already reported, no differences in Xylella fastidiosa titer were observed among rootstocks.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- rootstockse4
- Interactor
- Xylella fastidiosaXylella fastidiosae0pathogen
- Outcome
- Xf titere4
- Direction
- no_changeinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e4“No other differences in Xf titer among rootstocks were observed”
Claim · model-written summary
Chardonnay/RS3 had the highest levels of most xylem sap phenolics among the six scion/rootstock combinations.
- Taxon
- Vitis viniferaVitis viniferae0
- Material
- Chardonnay/RS3e5
- Outcome
- levels of most phenolicse5
- Direction
- higheste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e5“Chardonnay/RS3 had the highest levels of most phenolics”
Claim · model-written summary
Cabernet Sauvignon/101-14MG had the lowest xylem sap phenolic levels among the six scion/rootstock combinations.
- Taxon
- Vitis viniferaVitis viniferae0
- Material
- Cabernet Sauvignon/101-14MGe6
- Outcome
- phenolic levelse6
- Direction
- loweste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e6“Cabernet Sauvignon/101-14MG had the lowest phenolic levels”
Claim · model-written summary
Chardonnay/101-14MG, which had mild PD symptoms, had greater sap levels of caftaric acid than other scion/rootstock combinations.
- Taxon
- Vitis viniferaVitis viniferae0
- Material
- Chardonnay/101-14MGe7
- Outcome
- sap levels of caftaric acide7
- Direction
- greatere7
- Qualifier
- which had mild PD symptomse7
- Comparator
- other scion/rootstock combinationse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e7“Chardonnay/101-14MG, which had mild PD symptoms, had greater sap levels of caftaric acid than other scion/rootstock combinations”
Claim · model-written summary
Xylella fastidiosa-infected grapevines had greater sap levels of caftaric acid, methyl salicylate and a procyanidin trimer than non-infected grapevines.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- Xf-infectede6
- Interactor
- Xylella fastidiosaXylella fastidiosae0pathogen
- Outcome
- Sap levels of caftaric acid, methyl salicylate, a procyanidin trimere6
- Direction
- greatere6
- Comparator
- non-infected grapevinese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e6“Sap levels of caftaric acid, methyl salicylate, a procyanidin trimer, and quinic acid were greater in Xf-infected vs. non-infected grapevines”
Claim · model-written summary
Xylella fastidiosa-infected grapevines had greater sap levels of quinic acid than non-infected grapevines.
- Taxon
- Vitis viniferaVitis viniferae0
- Treatment
- Xf-infectede6
- Interactor
- Xylella fastidiosaXylella fastidiosae0pathogen
- Outcome
- quinic acide6
- Direction
- greatere6
- Comparator
- non-infected grapevinese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e6“Sap levels of caftaric acid, methyl salicylate, a procyanidin trimer, and quinic acid were greater in Xf-infected vs. non-infected grapevines”
Claim · model-written summary
Chardonnay on 101-14MG or Salt Creek had greater root mass than Chardonnay on RS3.
- Taxon
- Vitis viniferaVitis viniferae0
- Material
- Chardonnaye1
- Treatment
- 101-14MG or Salt Creeke1
- Outcome
- root masse1
- Direction
- greatere1
- Comparator
- RS3e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e1“Chardonnay on 101-14MG or Salt Creek had greater root mass than Chardonnay on RS3”
Claim · model-written summary
Cabernet Sauvignon on 101-14MG had greater root mass than Cabernet Sauvignon on 110R.
- Taxon
- Vitis viniferaVitis viniferae0
- Material
- Cabernet Sauvignone1
- Treatment
- 101-14MGe1
- Outcome
- root masse1
- Direction
- greatere1
- Comparator
- 110Re1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e1“Cabernet Sauvignon on 101-14MG had greater root mass than Cabernet Sauvignon on 110R”
Claim · model-written summary
Rootstocks with the capacity for reducing Pierce's disease symptom progression were identified in grapevine.
- Taxon
- Vitis viniferaVitis viniferae0
- Outcome
- PD symptom progressione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The xylem-limited bacterium Xylella fastidiosa (Xf) causes Pierce's disease (PD), an important disease of grapevine, Vitis vinifera L.”
e1“These results identified rootstocks with the capacity for reducing PD symptom progression”
The same questions in other papers
salinity · growth · Vitis vinifera (wine grape)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
2 papers more in this group
See all 6 papers →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.