Abstract
Farmers suffer large losses to bacterial wilt, a widespread crop disease caused by soilborne Ralstonia species. There is no good control for bacterial wilt, which affects many economically important crops, including tomato. Trehalose is an environmentally benign non-reducing disaccharide that is present in all kingdoms of life. Previous studies suggested that trehalose has potential as a biostimulant to reduce bacterial wilt of tomatoes and also to increase plant drought tolerance. We sought to define optimal strategies to apply this biostimulant for tomato plant protection. Imbibing seeds with a 30 mM trehalose solution before planting slightly increased drought tolerance but did not increase bacterial wilt resistance. However, exogenous application of 30 mM trehalose solutions substantially reduced wilt disease severity on tomato plants inoculated with high doses of Ralstonia pseudosolanacearum strain GMI1000. Trehalose was protective when applied either by soaking bare-root seedlings at the time of transplant or as a soil drench to older plants. Three or more trehalose soil drenches rendered tomato plants highly resistant to Ralstonia but also decreased their biomass and leaf chlorophyll content. Reducing the number of soil drenches to two resulted in good protection from bacterial wilt with minimal phytotoxicity. Soaking bare-root seedlings in trehalose also increased bacterial wilt resistance without major effects on plant health. Together, these experiments identified an environmentally sustainable solution for a common and destructive plant disease.
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Claims 9
Claim · model-written summary
Seed imbibition with 30 mM trehalose slightly increased drought tolerance.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- Imbibing seeds with a 30 mM trehalose solutione0
- Outcome
- drought tolerancee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imbibing seeds with a 30 mM trehalose solution before planting slightly increased drought tolerance”
t0“Tomato”
Claim · model-written summary
Seed imbibition with trehalose did not increase bacterial wilt resistance.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Imbibing seeds with a 30 mM trehalose solutione0
- Outcome
- bacterial wilt resistancee0
- Direction
- did not increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Imbibing seeds with a 30 mM trehalose solution before planting slightly increased drought tolerance but did not increase bacterial wilt resistance”
t0“Tomato”
Claim · model-written summary
Exogenous 30 mM trehalose substantially reduced wilt severity after high-dose Ralstonia inoculation.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- exogenous application of 30 mM trehalose solutionse0
- Interactor
- Ralstonia pseudosolanacearum strain GMI1000Ralstonia pseudosolanacearume0pathogen
- Outcome
- wilt disease severitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous application of 30 mM trehalose solutions substantially reduced wilt disease severity on tomato plants inoculated with high doses of Ralstonia pseudosolanacearum strain GMI1000”
Claim · model-written summary
Trehalose protection was observed with bare-root seedling soaking.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- soaking bare-root seedlings at the time of transplante0
- Outcome
- protectivee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trehalose was protective when applied either by soaking bare-root seedlings at the time of transplant”
t0“Tomato”
Claim · model-written summary
Trehalose protection was observed with soil drenching of older plants.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- soil drench to older plantse0
- Outcome
- protectivee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trehalose was protective when applied either by soaking bare-root seedlings at the time of transplant or as a soil drench to older plants”
t0“Tomato”
Claim · model-written summary
Three or more trehalose soil drenches rendered tomato highly resistant to Ralstonia.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Three or more trehalose soil drenchese0
- Outcome
- highly resistant to Ralstoniae0
RalstoniaNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three or more trehalose soil drenches rendered tomato plants highly resistant to Ralstonia”
Claim · model-written summary
Three or more soil drenches decreased tomato biomass and leaf chlorophyll content.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Three or more trehalose soil drenchese0
- Outcome
- biomass and leaf chlorophyll contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three or more trehalose soil drenches rendered tomato plants highly resistant to Ralstonia but also decreased their biomass and leaf chlorophyll content”
Claim · model-written summary
Two soil drenches provided good wilt protection with minimal phytotoxicity.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- number of soil drenches to twoe0
- Outcome
- good protection from bacterial wilt with minimal phytotoxicitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reducing the number of soil drenches to two resulted in good protection from bacterial wilt with minimal phytotoxicity”
t0“Tomato”
Claim · model-written summary
Trehalose soaking of bare-root seedlings increased wilt resistance without major plant health effects.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Soaking bare-root seedlings in trehalosee0
- Outcome
- bacterial wilt resistancee0
- Direction
- increasede0
- Qualifier
- without major effects on plant healthe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soaking bare-root seedlings in trehalose also increased bacterial wilt resistance without major effects on plant health”
t0“Tomato”
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See all 150 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.