Abstract
A collection of 27 sources of grapevine rugose wood (RW) disease from a viticultural region in northern Italy was analyzed by graft-inoculating vines of three selective Vitis indicators (V. rupestris cv. St. George, V. berlandieri × V. riparia cv. Kober 5BB, and hybrid cv. LN 33). On the basis of stem reactivity, different groups were identified among the selected RW inoculum sources: nine isolates induced pitting only on cv. St. George, whereas four induced grooving only on cv. Kober 5BB. These two groups were classified as isolates of rupestris stem pitting and Kober stem grooving. Three of the remaining isolates induced wood abnormalities on cvs. LN 33 and Kober 5BB, seven induced wood abnormalities on cvs. St. George and Kober 5BB, and four induced symptoms on all three indicators. These groups may represent RW sources with various disease combinations. RW-affected grapevine clones used as inoculum sources also were tested for virus infections by enzyme-linked immunosorbent assay (ELISA). ELISA revealed the presence of grapevine fleck virus, grapevine leafroll-associated closterovirus 1 and 3, and grapevine trichovirus A. These viruses infected most of the selected RW sources. However, eight of the latter were ELISA-negative. The findings are discussed, and the biological and etiological complexity of the RW phenomena in grapevine is confirmed.
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Claims 10
Claim · model-written summary
Nine sources caused pitting only on St. George.
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nine isolates induced pitting only on cv. St. George”
t0“Grapevine”
Claim · model-written summary
Four sources caused grooving only on Kober 5BB.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four induced grooving only on cv. Kober 5BB”
t0“Grapevine”
Claim · model-written summary
Three isolates caused wood abnormalities on LN 33 and Kober 5BB.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three of the remaining isolates induced wood abnormalities on cvs. LN 33 and Kober 5BB”
t0“Grapevine”
Claim · model-written summary
Seven isolates caused wood abnormalities on St. George and Kober 5BB.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seven induced wood abnormalities on cvs. St. George and Kober 5BB”
t0“Grapevine”
Claim · model-written summary
Four isolates caused symptoms on all three indicators.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“four induced symptoms on all three indicators”
t0“Grapevine”
Claim · model-written summary
ELISA detected grapevine fleck virus in affected grapevine clones.
- Interactor
- grapevine fleck virusGrapevine fleck viruse0pathogen
- Outcome
- presence of grapevine fleck viruse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ELISA revealed the presence of grapevine fleck virus, grapevine leafroll-associated closterovirus 1 and 3, and grapevine trichovirus A.”
t0“Grapevine”
Claim · model-written summary
ELISA detected grapevine leafroll-associated closterovirus 1 and 3.
- Interactor
- grapevine leafroll-associated closterovirus 1 and 3e0pathogen
- Outcome
- grapevine leafroll-associated closterovirus 1 and 3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ELISA revealed the presence of grapevine fleck virus, grapevine leafroll-associated closterovirus 1 and 3, and grapevine trichovirus A.”
t0“Grapevine”
Claim · model-written summary
ELISA detected grapevine trichovirus A.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ELISA revealed the presence of grapevine fleck virus, grapevine leafroll-associated closterovirus 1 and 3, and grapevine trichovirus A.”
t0“Grapevine”
Claim · model-written summary
Most selected sources were infected by these viruses.
- Outcome
- infected most of the selected RW sourcese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These viruses infected most of the selected RW sources.”
t0“Grapevine”
Claim · model-written summary
Eight selected sources were ELISA negative.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, eight of the latter were ELISA-negative.”
t0“Grapevine”