Abstract
Summary Six blackberry or hybrid berry cultivars and 19 raspberry cultivars were assessed for their infectibility with, and sensitivity to, graft inoculation with 10 distinct viruses found infecting Rubus in the UK. Cultivars were grafted with each of, two isolates of the pollen borne raspberry bushy dwarf virus (RBDV), five aphid borne viruses: black raspberry necrosis, raspberry leaf mottle (RLMV), raspberry leaf spot (RLSV), rubus yellow net and raspberry vein chlorosis (RVCV); and isolates of the nematode transmitted nepoviruses, arabis mosaic, raspberry ringspot, strawberry latent ringspot and tomato black ring. All tested cultivars were infectible with a resistance breaking isolate of RBDV but only about half of that number with the Scottish type isolate of the virus. The raspberry cvs Autumn Bliss, and occasionally Glen Garry and Glen Prosen, developed leaf yellowing symptoms following infection with RBDV, but none of the other infected cultivars showed obvious leaf symptoms when kept in a heated glasshouse during the growing season. All tested cultivars were infectible with each of the four viruses transmitted in nature by the aphid, Amphorophora idaei. Most were infected symptomlessly, but seven cultivars developed severe leaf spotting symptoms due to infection with RLMV or RLSV. All but one of the raspberry cultivars were infectible with RVCV, which is transmitted in nature by the aphid Aphis idaei , and almost all infected plants developed leaf symptoms; only one of the hybrid berry or blackberry cultivars tested was infected with RVCV. In tests with the four nepoviruses, all tested cultivars, except Tummelberry, were infectible with at least one or more of these viruses. However, cultivars responded differently to challenge inoculation with different isolates of individual nepoviruses. Several cultivars developed chlorotic leaf mottling following infection with some nepovirus isolates. The implications of these results for virus control are discussed in the light of the changing pattern of virus and virus vector incidence in the UK.
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Claims 13
Claim · model-written summary
All tested cultivars were infectible with the resistance breaking RBDV isolate.
- Taxon
- raspberry, blackberry and hybrid berry cultivarst0
- Interactor
- RBDVRaspberry bushy dwarf viruse0pathogen
- Outcome
- infectible with a resistance breaking isolate of RBDVe0
- Qualifier
- All tested cultivarse0
Verbatim
e0“All tested cultivars were infectible with a resistance breaking isolate of RBDV”
t0“raspberry, blackberry and hybrid berry cultivars”
Claim · model-written summary
Only about half as many cultivars were infectible with the Scottish RBDV isolate.
Verbatim
e0“only about half of that number with the Scottish type isolate of the virus”
t0“raspberry, blackberry and hybrid berry cultivars”
e1“All tested cultivars were infectible with a resistance breaking isolate of RBDV”
Claim · model-written summary
Autumn Bliss and occasionally Glen Garry and Glen Prosen developed leaf yellowing after RBDV infection.
- Taxon
- raspberrye0
- Material
- Autumn Bliss, and occasionally Glen Garry and Glen Prosene0
- Interactor
- RBDVRaspberry bushy dwarf viruse0pathogen
- Outcome
- leaf yellowing symptomse0
Verbatim
e0“The raspberry cvs Autumn Bliss, and occasionally Glen Garry and Glen Prosen, developed leaf yellowing symptoms following infection with RBDV”
Claim · model-written summary
Other infected cultivars showed no obvious leaf symptoms in a heated glasshouse.
Verbatim
e0“none of the other infected cultivars showed obvious leaf symptoms when kept in a heated glasshouse during the growing season”
t0“raspberry, blackberry and hybrid berry cultivars”
Claim · model-written summary
All cultivars were infectible with each of four viruses transmitted by Amphorophora idaei.
- Taxon
- raspberry, blackberry and hybrid berry cultivarst0
- Interactor
- Amphorophora idaeiAmphorophora idaeie0pest
- Outcome
- infectible with each of the four virusese0
Verbatim
e0“All tested cultivars were infectible with each of the four viruses transmitted in nature by the aphid, Amphorophora idaei”
t0“raspberry, blackberry and hybrid berry cultivars”
Claim · model-written summary
Most infected cultivars had no symptoms.
Verbatim
e0“Most were infected symptomlessly”
t0“raspberry, blackberry and hybrid berry cultivars”
Claim · model-written summary
Seven cultivars developed severe leaf spotting after RLMV or RLSV infection.
Verbatim
e0“seven cultivars developed severe leaf spotting symptoms due to infection with RLMV or RLSV”
t0“raspberry, blackberry and hybrid berry cultivars”
Claim · model-written summary
All but one raspberry cultivar was infectible with RVCV.
Verbatim
e0“All but one of the raspberry cultivars were infectible with RVCV”
Claim · model-written summary
Almost all RVCV infected plants developed leaf symptoms.
Verbatim
e0“almost all infected plants developed leaf symptoms”
e1“All but one of the raspberry cultivars were infectible with RVCV”
Claim · model-written summary
Only one hybrid berry or blackberry cultivar was infected with RVCV.
Verbatim
e0“only one of the hybrid berry or blackberry cultivars tested was infected with RVCV”
Claim · model-written summary
Every tested cultivar except Tummelberry was infectible with at least one nepovirus.
Verbatim
e0“all tested cultivars, except Tummelberry, were infectible with at least one or more of these viruses”
t0“raspberry, blackberry and hybrid berry cultivars”
Claim · model-written summary
Cultivars responded differently to different isolates of individual nepoviruses.
NepovirusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cultivars responded differently to challenge inoculation with different isolates of individual nepoviruses”
t0“raspberry, blackberry and hybrid berry cultivars”
Claim · model-written summary
Several cultivars developed chlorotic leaf mottling after some nepovirus infections.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Several cultivars developed chlorotic leaf mottling following infection with some nepovirus isolates”
t0“raspberry, blackberry and hybrid berry cultivars”