Abstract
BACKGROUND: Plants in nature can be sequentially attacked by different arthropod herbivores. Feeding by one arthropod species may induce plant-defense responses that might affect the performance of a later-arriving herbivorous species. Understanding these interactions can help in developing pest-management strategies. In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests that frequently cohabit on the same plant. We studied whether colonization by one species can either facilitate or impede later colonization of tomato plants by conspecific or heterospecific individuals. RESULTS: B. tabaci females showed a strong preference for and increased oviposition on plants previously colonized by conspecifics. In contrast, plants infested with T. urticae repelled B. tabaci females and reduced their oviposition rate by 86%. Although females of T. urticae showed no preference between conspecific-infested or uninfested plants, we observed a 50% reduction in the number of eggs laid on conspecific-infested plants. Both herbivorous arthropods up-regulated the expression of genes involving the jasmonic acid and abscisic acid pathways, increasing emissions of fatty-acid derivatives, but only B. tabaci increased the expression of genes related to the salicylic acid pathway and the total amount of phenylpropanoids released. Terpenoids were the most abundant compounds in the volatile blends; many terpenoids were emitted at different rates, which might have influenced the arthropods' host selection. CONCLUSION: Our results indicate that B. tabaci infestation facilitated subsequent infestations by conspecifics and mites, while T. urticae infestation promoted herbivore-induced resistance. Based on both the molecular and behavioral findings, a novel sustainable pest-management strategy is discussed.
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Claims 12
Claim · model-written summary
Whiteflies preferred plants previously colonized by conspecifics.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- previously colonized by conspecificse1
- Interactor
- B. tabaci
Bemisia tabacie1pest - Outcome
- strong preferencee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“B. tabaci females showed a strong preference for and increased oviposition on plants previously colonized by conspecifics”
Claim · model-written summary
Whitefly oviposition increased on plants colonized by conspecifics.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- previously colonized by conspecificse1
- Interactor
- B. tabaciBemisia tabacie1pest
- Outcome
- ovipositione1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“B. tabaci females showed a strong preference for and increased oviposition on plants previously colonized by conspecifics”
Claim · model-written summary
Spider-mite infested plants repelled whiteflies.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- infested with T. urticaee1
- Interactor
- B. tabaciBemisia tabacie1pest
- Second interactor
- T. urticae
.jpg?width=60)
Tetranychus urticaee1pest - Outcome
- repelled B. tabaci femalese1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“plants infested with T. urticae repelled B. tabaci females”
Claim · model-written summary
Spider-mite infestation reduced whitefly oviposition by 86%.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- infested with T. urticaee1
- Interactor
- B. tabaciBemisia tabacie1pest
- Second interactor
- T. urticaeTetranychus urticaee1pest
- Outcome
- oviposition ratee1
- Direction
- reducede1
- Value
- 86%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“plants infested with T. urticae repelled B. tabaci females and reduced their oviposition rate by 86%”
Claim · model-written summary
Spider mites had no preference between conspecific-infested and uninfested plants.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- T. urticaeTetranychus urticaee1pest
- Outcome
- no preferencee1
- Comparator
- uninfested plantse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“females of T. urticae showed no preference between conspecific-infested or uninfested plants”
Claim · model-written summary
Spider mites laid 50% fewer eggs on conspecific-infested plants.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- conspecific-infested plantse1
- Interactor
- Tetranychus urticaeTetranychus urticaee0pest
- Outcome
- number of eggs laide1
- Direction
- reductione1
- Value
- 50%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“a 50% reduction in the number of eggs laid on conspecific-infested plants”
Claim · model-written summary
Both arthropods up-regulated genes in jasmonic and abscisic acid pathways.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Bemisia tabaciBemisia tabacie0pest
- Second interactor
- Tetranychus urticaeTetranychus urticaee0pest
- Gene
- genes involving the jasmonic acid and abscisic acid pathwayse1
- Outcome
- expressione1
- Direction
- up-regulatede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“Both herbivorous arthropods up-regulated the expression of genes involving the jasmonic acid and abscisic acid pathways”
Claim · model-written summary
Both arthropods increased fatty-acid derivative emissions.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- Bemisia tabaciBemisia tabacie0pest
- Second interactor
- Tetranychus urticaeTetranychus urticaee0pest
- Outcome
- emissions of fatty-acid derivativese1
- Direction
- increasinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“increasing emissions of fatty-acid derivatives”
Claim · model-written summary
Only B. tabaci increased salicylic acid pathway gene expression.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- B. tabaciBemisia tabacie1pest
- Gene
- genes related to the salicylic acid pathwaye1
- Outcome
- expressione1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“only B. tabaci increased the expression of genes related to the salicylic acid pathway”
Claim · model-written summary
Only B. tabaci increased released phenylpropanoids.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- B. tabaciBemisia tabacie1pest
- Outcome
- total amount of phenylpropanoids releasede1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“only B. tabaci increased the expression of genes related to the salicylic acid pathway and the total amount of phenylpropanoids released”
Claim · model-written summary
Terpenoids were the most abundant volatile compounds.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- Terpenoids were the most abundant compoundse1
- Direction
- most abundante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“Terpenoids were the most abundant compounds in the volatile blends”
Claim · model-written summary
Terpenoids differed in emission rates.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- terpenoids were emitted at different ratese1
- Direction
- different ratese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In tomato, the sweet-potato whitefly Bemisia tabaci and the two-spotted spider mite Tetranychus urticae are key pests”
e1“many terpenoids were emitted at different rates”
The same questions in other papers
Tetranychus urticae · Bemisia tabaci · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- negative
infection · Bemisia tabaci · Solanum lycopersicum (tomato)Positive and negative results
5 papers in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- negative
11 papers more in this group
See all 15 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.