Abstract
Ilyonectria is a weak pathogen known for causing black foot disease in young vines, infecting roots and vascular tissues at the basal end of the rootstock and restricting the movement of water and nutrients. This negatively impacts vine establishment during transplant into the vineyard. Arbuscular mycorrhizal (AM) fungi are symbiotic fungi that associate with most plants and have been shown to mitigate the infection and effect of pathogens. This greenhouse study was designed to determine if the mycorrhizal fungi could mitigate Ilyonectria infection and whether this was dependent on inoculation timing. ‘Riparia gloire’ grapevine rootstocks (Vitis riparia) were infected with Ilyonectria either after AM fungi, at the same time as AM fungi, or to roots that were not inoculated by AM fungi. We measured the abundance using specific markers for both the pathogen and AM fungi. Colonization by AM fungi did not suppress Ilyonectria, but instead increased the abundance of Ilyonectria. Further, mycorrhizal rootstocks did not have enhanced growth effects on physiological parameters when compared to non-mycorrhizal rootstocks. These findings stand in contrast to the general perception that AM fungi provide protection against root pathogens.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 2
Claim · model-written summary
AM fungal colonization increased Ilyonectria abundance in grapevine rootstocks.
- Material
- ‘Riparia gloire’e1
- Treatment
- AM fungie1
- Interactor
- IlyonectriaIlyonectriae0pathogen
- Second interactor
- AM fungiGlomeromycotae0symbiont
- Outcome
- abundance of Ilyonectriae0
- Direction
- increasede0
- Comparator
- roots that were not inoculated by AM fungie1
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Colonization by AM fungi did not suppress Ilyonectria, but instead increased the abundance of Ilyonectria”
e1“‘Riparia gloire’ grapevine rootstocks (Vitis riparia) were infected with Ilyonectria either after AM fungi, at the same time as AM fungi, or to roots that were not inoculated by AM fungi”
Claim · model-written summary
Mycorrhizal grapevine rootstocks showed no enhanced growth effects on physiological parameters compared with non-mycorrhizal rootstocks.
- Material
- ‘Riparia gloire’e1
- Treatment
- mycorrhizal rootstockse0
- Outcome
- growth effects on physiological parameterse0
- Direction
- did not have enhancede0
- Comparator
- non-mycorrhizal rootstockse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mycorrhizal rootstocks did not have enhanced growth effects on physiological parameters when compared to non-mycorrhizal rootstocks”
e1“‘Riparia gloire’ grapevine rootstocks (Vitis riparia)”
The same questions in other papers
mycorrhiza · growth · VitisPositive and negative results
1 paper in the same direction as this paper · 25 in the opposite direction
- positive
- positive
- positive
23 papers more in this group
See all 27 papers →grafting · growth · VitisPositive and negative results
10 papers in the same direction as this paper · 20 in the opposite direction
- positive
- positive
- positive
27 papers more in this group
See all 31 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.