Abstract
Black foot disease is one of the main grapevine root diseases observed worldwide and is especially problematic in New Zealand. Arbuscular mycorrhizal fungi (AMF) have been shown to reduce infection and mitigate the effect of black foot disease on grapevine rootstocks. In contrast to prior studies, which have limited their focus to the effect of one, two or a combination of only a small number of AMF species, this study used whole AMF communities identified from 101-14, 5C and Schwarzmann rootstocks sampled from New Zealand vineyards. The effect of AMF on black foot disease was investigated in a 'home' and 'away' experiment using three commercial grapevine rootstocks. The study produced some evidence that AMF treatments lowered disease incidence at 5 cm and disease severity in vines by 40% to 50% compared to the vines inoculated with the pathogen only. This work also showed that the presence of high disease incidence may have limited the potential disease protective effect of AMF community. However, despite the high disease incidence and severity, AMF inoculation increased vine growth parameters by 60% to 80% compared to the vines inoculated with the pathogen only. This study is the first to provide an understanding on how young grapevine rootstocks inoculated with their 'home' and 'away' AMF communities would respond to challenge with a black foot pathogen species mixture. Further research is required to understand the mechanistic effect of AMF colonization on the increase of grapevine growth parameters under high black foot disease pressure.
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Claims 4
Claim · model-written summary
AMF treatment showed some evidence of lowering disease incidence at 5 cm by 40% to 50%.
- Treatment
- AMF treatmentse0
- Interactor
- pathogene0pathogen
- Second interactor
- AMFe0symbiont
- Outcome
- disease incidence at 5 cme0
- Direction
- lowerede0
- Value
- 40% to 50%e0
- Comparator
- vines inoculated with the pathogen onlye0
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF treatments lowered disease incidence at 5 cm and disease severity in vines by 40% to 50% compared to the vines inoculated with the pathogen only”
t0“Grapevine”
Claim · model-written summary
AMF treatment showed some evidence of lowering disease severity by 40% to 50%.
- Treatment
- AMF treatmentse0
- Interactor
- pathogene0pathogen
- Second interactor
- AMFe0symbiont
- Outcome
- disease severity in vinese0
- Direction
- lowerede0
- Value
- 40% to 50%e0
- Comparator
- vines inoculated with the pathogen onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF treatments lowered disease incidence at 5 cm and disease severity in vines by 40% to 50% compared to the vines inoculated with the pathogen only”
t0“Grapevine”
Claim · model-written summary
High disease incidence may have limited protection by AMF communities.
- Interactor
- AMFe0symbiont
- Outcome
- potential disease protective effecte0
- Direction
- limitede0
- Qualifier
- may havee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high disease incidence may have limited the potential disease protective effect of AMF community”
t0“Grapevine”
Claim · model-written summary
AMF inoculation increased vine growth by 60% to 80% versus pathogen-only inoculation.
- Treatment
- AMF inoculatione0
- Interactor
- AMFe0symbiont
- Second interactor
- pathogene0pathogen
- Outcome
- vine growth parameterse0
- Direction
- increasede0
- Value
- 60% to 80%e0
- Comparator
- vines inoculated with the pathogen onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AMF inoculation increased vine growth parameters by 60% to 80% compared to the vines inoculated with the pathogen only”
t0“Grapevine”
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