Abstract
The basal defenses important in curtailing the development of the phloem-feeding silverleaf whitefly (Bemisia tabaci type B; SLWF) on Arabidopsis (Arabidopsis thaliana) were investigated. Sentinel defense gene RNAs were monitored in SLWF-infested and control plants. Salicylic acid (SA)-responsive gene transcripts accumulated locally (PR1, BGL2, PR5, SID2, EDS5, PAD4) and systemically (PR1, BGL2, PR5) during SLWF nymph feeding. In contrast, jasmonic acid (JA)- and ethylene-dependent RNAs (PDF1.2, VSP1, HEL, THI2.1, FAD3, ERS1, ERF1) were repressed or not modulated in SLWF-infested leaves. To test for a role of SA and JA pathways in basal defense, SLWF development on mutant and transgenic lines that constitutively activate or impair defense pathways was determined. By monitoring the percentage of SLWF nymphs in each instar, we show that mutants that activate SA defenses (cim10) or impair JA defenses (coi1) accelerated SLWF nymphal development. Reciprocally, mutants that activate JA defenses (cev1) or impair SA defenses (npr1, NahG) slowed SLWF nymphal development. Furthermore, when npr1 plants, which do not activate downstream SA defenses, were treated with methyl jasmonate, a dramatic delay in nymph development was observed. Collectively, these results showed that SLWF-repressed, JA-regulated defenses were associated with basal defense to the SLWF.
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Claims 10
Claim · model-written summary
Whitefly nymph feeding induced local SA-responsive defense transcripts.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae1 - Treatment
- SLWF nymph feedinge0
- Interactor
- SLWFe0pest
- Gene
- PR1, BGL2, PR5, SID2, EDS5, PAD4e0
- Outcome
- gene transcripts accumulated locallye0
- Direction
- accumulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salicylic acid (SA)-responsive gene transcripts accumulated locally (PR1, BGL2, PR5, SID2, EDS5, PAD4) and systemically (PR1, BGL2, PR5) during SLWF nymph feeding”
e1“Arabidopsis (Arabidopsis thaliana)”
Claim · model-written summary
Whitefly nymph feeding induced systemic SA-responsive defense transcripts.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Treatment
- SLWF nymph feedinge0
- Interactor
- SLWFe0pest
- Gene
- PR1, BGL2, PR5e0
- Outcome
- systemicallye0
- Direction
- accumulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salicylic acid (SA)-responsive gene transcripts accumulated locally (PR1, BGL2, PR5, SID2, EDS5, PAD4) and systemically (PR1, BGL2, PR5) during SLWF nymph feeding”
e1“Arabidopsis (Arabidopsis thaliana)”
Claim · model-written summary
JA- and ethylene-dependent RNAs were repressed or unchanged in whitefly-infested leaves.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Treatment
- SLWF-infestede0
- Interactor
- SLWFe0pest
- Gene
- PDF1.2, VSP1, HEL, THI2.1, FAD3, ERS1, ERF1e0
- Outcome
- ethylene-dependent RNAse0
- Direction
- repressed or not modulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“jasmonic acid (JA)- and ethylene-dependent RNAs (PDF1.2, VSP1, HEL, THI2.1, FAD3, ERS1, ERF1) were repressed or not modulated in SLWF-infested leaves”
e1“Arabidopsis (Arabidopsis thaliana)”
Claim · model-written summary
The cim10 mutant accelerated whitefly nymphal development.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- cim10e0
- Treatment
- activate SA defensese0
- Interactor
- SLWFe0pest
- Outcome
- SLWF nymphal developmente0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mutants that activate SA defenses (cim10) or impair JA defenses (coi1) accelerated SLWF nymphal development”
e1“Arabidopsis (Arabidopsis thaliana)”
Claim · model-written summary
The coi1 mutant accelerated whitefly nymphal development.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- coi1e0
- Treatment
- impair JA defensese0
- Interactor
- SLWFe0pest
- Outcome
- SLWF nymphal developmente0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mutants that activate SA defenses (cim10) or impair JA defenses (coi1) accelerated SLWF nymphal development”
e1“Arabidopsis (Arabidopsis thaliana)”
Claim · model-written summary
The cev1 mutant slowed whitefly nymphal development.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- cev1e0
- Treatment
- activate JA defensese0
- Interactor
- SLWFe0pest
- Outcome
- SLWF nymphal developmente0
- Direction
- slowede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mutants that activate JA defenses (cev1) or impair SA defenses (npr1, NahG) slowed SLWF nymphal development”
e1“Arabidopsis (Arabidopsis thaliana)”
Claim · model-written summary
The npr1 mutant slowed whitefly nymphal development.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- npr1e0
- Treatment
- impair SA defensese0
- Interactor
- SLWFe0pest
- Outcome
- SLWF nymphal developmente0
- Direction
- slowede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mutants that activate JA defenses (cev1) or impair SA defenses (npr1, NahG) slowed SLWF nymphal development”
e1“Arabidopsis (Arabidopsis thaliana)”
Claim · model-written summary
NahG plants slowed whitefly nymphal development.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- NahGe0
- Treatment
- impair SA defensese0
- Interactor
- SLWFe0pest
- Outcome
- SLWF nymphal developmente0
- Direction
- slowede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mutants that activate JA defenses (cev1) or impair SA defenses (npr1, NahG) slowed SLWF nymphal development”
e1“Arabidopsis (Arabidopsis thaliana)”
Claim · model-written summary
Methyl jasmonate treatment dramatically delayed whitefly nymph development on npr1 plants.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Material
- npr1e0
- Treatment
- methyl jasmonatee0
- Interactor
- silverleaf whitefly
Bemisia argentifoliie2pest - Outcome
- nymph developmente0
- Direction
- delaye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when npr1 plants, which do not activate downstream SA defenses, were treated with methyl jasmonate, a dramatic delay in nymph development was observed”
e1“Arabidopsis (Arabidopsis thaliana)”
e2“silverleaf whitefly (Bemisia tabaci type B; SLWF)”
Claim · model-written summary
JA-regulated defenses were associated with basal defense to silverleaf whitefly.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae1
- Interactor
- SLWFe0pest
- Outcome
- basal defensee0
- Qualifier
- JA-regulated defensese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SLWF-repressed, JA-regulated defenses were associated with basal defense to the SLWF”
e1“Arabidopsis (Arabidopsis thaliana)”
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