Abstract
A fundamental question about microbial pathogens is how they elicit host-specific symptoms. We report here that expression of a single gene from a plant-pathogenic bacterium in plant cells elicits host-specific symptoms diagnostic of the disease caused by the pathogen. Expression of pthA from Xanthomonas citri in citrus cells is sufficient to cause division, enlargement, and death of host cells. Since elicitation of these symptoms depends on a functional type III protein secretion system in X. citri, we deduce that the PthA protein is a specific plant signal, its site of action is inside the plant cell, and it is a major determinant of host range.
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Claims 4
Claim · model-written summary
Expression of Xanthomonas citri pthA in citrus caused host-cell division.
- Treatment
- Expression of pthAe0
- Interactor
- Xanthomonas citri
Xanthomonas citrie0pathogen - Gene
- pthAe0
- Outcome
- divisione0
CitrusNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Expression of pthA from Xanthomonas citri in citrus cells is sufficient to cause division, enlargement, and death of host cells.”
Claim · model-written summary
Expression of Xanthomonas citri pthA in citrus caused host-cell enlargement.
- Treatment
- Expression of pthAe0
- Interactor
- Xanthomonas citriXanthomonas citrie0pathogen
- Gene
- pthAe0
- Outcome
- enlargemente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Expression of pthA from Xanthomonas citri in citrus cells is sufficient to cause division, enlargement, and death of host cells.”
Claim · model-written summary
Expression of Xanthomonas citri pthA in citrus caused host-cell death of host cells.
- Treatment
- Expression of pthAe0
- Interactor
- Xanthomonas citriXanthomonas citrie0pathogen
- Gene
- pthAe0
- Outcome
- death of host cellse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Expression of pthA from Xanthomonas citri in citrus cells is sufficient to cause division, enlargement, and death of host cells.”
Claim · model-written summary
PthA was deduced to act as an intracellular plant signal and host-range determinant.
- Interactor
- Xanthomonas citriXanthomonas citrie1pathogen
- Gene
- PthA proteine0
- Outcome
- major determinant of host rangee0
- Qualifier
- site of action is inside the plant celle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we deduce that the PthA protein is a specific plant signal, its site of action is inside the plant cell, and it is a major determinant of host range.”
e1“Expression of pthA from Xanthomonas citri in citrus cells”
The same questions in other papers
transgenic · Xanthomonas citri · CitrusPositive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.