Abstract
Whether nutrient availability interacts with induced resistance to alter plant chemistry and, consequently, the preference and performance of herbivores on plants remains unclear. We hypothesized that changing fertilizer inputs modulates responses induced by exogenous application of the defensive phytohormone methyl jasmonate (MeJA) against Tuta absoluta, a devastating pest of tomatoes. We found that tomato plants grown at or 2-fold above optimal fertilizer rates had higher nutrient content and were more preferred by T. absoluta females for oviposition and were better hosts for their offspring. MeJA increased phenolic content and volatile emissions in plants, which correlated with lower T. absoluta oviposition preference and offspring performance. However, we found no significant interactions when fertilizer and MeJA were applied simultaneously, such that induced responses against T. absoluta in tomatoes were similar regardless of fertilizer rate. These results provide novel insights into the bottom-up effects of fertilization and induced resistance on plant-insect herbivore interactions.
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Claims 7
Claim · model-written summary
Tomatoes at or twice optimal fertilizer rates had higher nutrient content.
- Taxon
- tomato plants
Solanum lycopersicume0 - Treatment
- at or 2-fold above optimal fertilizer ratese0
- Outcome
- nutrient contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato plants grown at or 2-fold above optimal fertilizer rates had higher nutrient content”
Claim · model-written summary
Tomatoes at or twice optimal fertilizer rates were more preferred for oviposition by T. absoluta females.
- Taxon
- tomato plantsSolanum lycopersicume0
- Treatment
- at or 2-fold above optimal fertilizer ratese0
- Interactor
- T. absoluta
.jpg?width=60)
Tuta absolutae0pest - Outcome
- ovipositione0
- Direction
- more preferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“tomato plants grown at or 2-fold above optimal fertilizer rates had higher nutrient content and were more preferred by T. absoluta females for oviposition”
Claim · model-written summary
Tomatoes at or twice optimal fertilizer rates were better hosts for T. absoluta offspring.
- Taxon
- tomato plantsSolanum lycopersicume0
- Treatment
- at or 2-fold above optimal fertilizer ratese0
- Interactor
- T. absolutaTuta absolutae0pest
- Outcome
- better hosts for their offspringe0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato plants grown at or 2-fold above optimal fertilizer rates had higher nutrient content and were more preferred by T. absoluta females for oviposition and were better hosts for their offspring”
Claim · model-written summary
MeJA increased tomato phenolic content and volatile emissions.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- MeJAe0
- Outcome
- phenolic content and volatile emissionse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA increased phenolic content and volatile emissions in plants”
t0“tomato plants”
t1“tomato plants”
Claim · model-written summary
MeJA-associated chemistry correlated with lower T. absoluta oviposition preference.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- MeJAe0
- Interactor
- T. absolutaTuta absolutae0pest
- Outcome
- T. absoluta oviposition preferencee0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA increased phenolic content and volatile emissions in plants, which correlated with lower T. absoluta oviposition preference”
t0“tomato plants”
t1“tomato plants”
Claim · model-written summary
MeJA-associated chemistry correlated with lower T. absoluta offspring performance.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- MeJAe0
- Interactor
- T. absolutaTuta absolutae0pest
- Outcome
- offspring performancee0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA increased phenolic content and volatile emissions in plants, which correlated with lower T. absoluta oviposition preference and offspring performance”
t0“tomato plants”
t1“tomato plants”
Claim · model-written summary
Fertilizer and MeJA had no significant interaction, and induced responses were similar across fertilizer rates.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- fertilizer and MeJAe0
- Interactor
- T. absolutaTuta absolutae0pest
- Outcome
- induced responses against T. absolutae0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we found no significant interactions when fertilizer and MeJA were applied simultaneously, such that induced responses against T. absoluta in tomatoes were similar regardless of fertilizer rate”
The same questions in other papers
(-)-methyl jasmonate · quality: phytochemicals · Solanum lycopersicum (tomato)Results agree
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- positive
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See all 7 papers →fertilization · nutrient: content · Solanum lycopersicum (tomato)Positive and negative results
225 papers in the same direction as this paper · 38 in the opposite direction · 7 reporting no difference from an alternative
- no effect
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See all 271 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.