Abstract
Abstract The correlation between the degree of maturity of grapevine berries and their susceptibility to infection by the grey mould fungus Botrytis cinerea was studied. Artificial inoculation with B. cinerea conidia of detached berries from cultivars Riesling and Pinot noir revealed an increasing susceptibility during the last weeks of berry ripening. Wound inoculation resulted in increased lesion formation when compared with inoculation of non‐wounded berry skins. Lesion development after non‐wounding inoculation was stimulated by the addition of nutrients. Riesling berries were more readily infected than Pinot noir berries, indicating that the Riesling berry skin is more easily colonized by the grey mould fungus. Analysis of defence gene activation in the berry skin tissue revealed increased transcript levels of phenylalanine ammonium lyase and stilbene synthase after inoculation with B. cinerea conidia, while mRNA abundance of osmotin was similar in inoculated and non‐inoculated tissue. Our data indicate that properties of the grape berry skin, including its ability for infection‐induced defence gene activation, are important for the outcome of grey mould infections.
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Claims 7
Claim · model-written summary
Berry susceptibility to Botrytis cinerea increased during the last weeks of ripening.
- Material
- Riesling and Pinot noire0
- Organ / stage
- last weeks of berry ripeninge0
- Interactor
- B. cinerea
Botrytis cinereae0pathogen - Outcome
- susceptibilitye0
- Direction
- increasinge0
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine Berry Skins”
e0“Artificial inoculation with B. cinerea conidia of detached berries from cultivars Riesling and Pinot noir revealed an increasing susceptibility during the last weeks of berry ripening.”
Claim · model-written summary
Wound inoculation increased lesion formation compared with inoculation of non-wounded berry skins.
- Treatment
- Wound inoculatione0
- Outcome
- lesion formatione0
- Direction
- increasede0
- Comparator
- inoculation of non‐wounded berry skinse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine Berry Skins”
e0“Wound inoculation resulted in increased lesion formation when compared with inoculation of non‐wounded berry skins.”
Claim · model-written summary
Added nutrients stimulated lesion development after non-wounding inoculation.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine Berry Skins”
e0“Lesion development after non‐wounding inoculation was stimulated by the addition of nutrients.”
Claim · model-written summary
Riesling berries were more readily infected than Pinot noir berries.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine Berry Skins”
e0“Riesling berries were more readily infected than Pinot noir berries, indicating that the Riesling berry skin is more easily colonized by the grey mould fungus.”
Claim · model-written summary
Phenylalanine ammonium lyase transcript levels increased after inoculation with B. cinerea conidia.
- Treatment
- inoculation with B. cinerea conidiae0
- Interactor
- B. cinereaBotrytis cinereae0pathogen
- Gene
- phenylalanine ammonium lyasee0
- Outcome
- transcript levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine Berry Skins”
e0“Analysis of defence gene activation in the berry skin tissue revealed increased transcript levels of phenylalanine ammonium lyase and stilbene synthase after inoculation with B. cinerea conidia”
Claim · model-written summary
Stilbene synthase transcript levels increased after inoculation with B. cinerea conidia.
- Treatment
- inoculation with B. cinerea conidiae0
- Interactor
- B. cinereaBotrytis cinereae0pathogen
- Gene
- stilbene synthasee0
- Outcome
- transcript levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine Berry Skins”
e0“increased transcript levels of phenylalanine ammonium lyase and stilbene synthase after inoculation with B. cinerea conidia”
Claim · model-written summary
Osmotin mRNA abundance was similar in inoculated and non-inoculated tissue.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Grapevine Berry Skins”
e0“mRNA abundance of osmotin was similar in inoculated and non‐inoculated tissue.”
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