Abstract
Xanthomonas fragariae usually causes angular leaf spot (ALS) of strawberry, a serious bacterial disease in many strawberry-producing regions worldwide. Recently, a new strain of X. fragariae (YL19) was isolated from strawberry in China and has been shown to cause dry cavity rot in strawberry crown. In this study, we constructed a green fluorescent protein (GFP)-labeled Xf YL19 (YL19-GFP) to visualize the infection process and pathogen colonization in strawberries. Foliar inoculation of YL19-GFP resulted in the pathogen migrating from the leaves to the crown, whereas dip inoculation of wounded crowns or roots resulted in the migration of bacteria from the crowns or roots to the leaves. These two invasion types both resulted in the systematic spread of YL19-GFP, but inoculation of a wounded crown was more harmful to the strawberry plant than foliar inoculation. Results increased our understanding of the systemic invasion of X. fragariae, and the resultant crown cavity caused by Xf YL19.
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Claims 4
Claim · model-written summary
Foliar inoculation led the pathogen to move from leaves to crown.
- Treatment
- Foliar inoculation of YL19-GFPe0
- Interactor
- YL19-GFPe0pathogen
- Outcome
- pathogen migrating from the leaves to the crowne0
Not reportedTaxonComparatorDirection
Verbatim
e0“Foliar inoculation of YL19-GFP resulted in the pathogen migrating from the leaves to the crown”
Claim · model-written summary
Wounded crown or root dip inoculation led bacteria to move to leaves.
- Treatment
- dip inoculation of wounded crowns or rootse0
- Outcome
- migration of bacteria from the crowns or roots to the leavese0
Not reportedTaxonComparatorDirection
Verbatim
e0“dip inoculation of wounded crowns or roots resulted in the migration of bacteria from the crowns or roots to the leaves”
Claim · model-written summary
Both invasion routes caused systemic YL19-GFP spread.
Not reportedTaxon
Verbatim
e0“These two invasion types both resulted in the systematic spread of YL19-GFP”
Claim · model-written summary
Wounded crown inoculation was more harmful to strawberry than foliar inoculation.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassae0 - Treatment
- inoculation of a wounded crowne0
- Outcome
- harmful to the strawberry plante0
- Direction
- more harmfule0
- Comparator
- foliar inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“inoculation of a wounded crown was more harmful to the strawberry plant than foliar inoculation.”
The same questions in other papers
inoculation · organism · Fragaria x ananassa (strawberry)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 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.