Abstract
Physiological and biochemical approaches were used to study engenol-induced resistance of tobacco plant against tobacco mosaic virus(TMV).Pretreatment with eugenol before TMV inoculation enhanced the accumulation of chlorophyll and the transcript abundance of PR-1,PR-3,PR-5 in tobacco.Eugenol-induced decrease in the concentration of MDA might result from the increase of the activities of antioxidative enzymes,such as peroxidase(POD) and superoxide dismutase(SOD).Pretreatment with eugenol also induced the increase of the activity of phenylalanine ammonium lyase(PAL),which plays important role in protecting plant from virus attack.These results suggested that eugenol might attenuate the harmful effects of TMV on tobacco plant by modulating plant defense system.
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Claims 6
Claim · model-written summary
Eugenol pretreatment increased chlorophyll accumulation before TMV inoculation.
- Taxon
- tobacco
Nicotiana tabacumt0 - Treatment
- Pretreatment with eugenole0
- Interactor
- TMV
Tobacco mosaic viruse0pathogen - Outcome
- accumulation of chlorophylle0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretreatment with eugenol before TMV inoculation enhanced the accumulation of chlorophyll”
t0“tobacco against TMV”
Claim · model-written summary
Eugenol pretreatment enhanced PR-1, PR-3 and PR-5 transcript abundance before TMV inoculation.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Pretreatment with eugenole0
- Interactor
- TMVTobacco mosaic viruse0pathogen
- Gene
- PR-1,PR-3,PR-5e0
- Outcome
- transcript abundancee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretreatment with eugenol before TMV inoculation enhanced the accumulation of chlorophyll and the transcript abundance of PR-1,PR-3,PR-5 in tobacco”
Claim · model-written summary
Eugenol decreased MDA concentration.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- Eugenole0
- Outcome
- concentration of MDAe0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Eugenol-induced decrease in the concentration of MDA”
t0“tobacco against TMV”
Claim · model-written summary
Antioxidative enzyme activities increased with eugenol-induced MDA reduction.
- Taxon
- tobaccoNicotiana tabacumt0
- Gene
- peroxidase(POD) and superoxide dismutase(SOD)e0
- Outcome
- activities of antioxidative enzymese0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase of the activities of antioxidative enzymes,such as peroxidase(POD) and superoxide dismutase(SOD)”
t0“tobacco against TMV”
Claim · model-written summary
Eugenol pretreatment increased PAL activity.
- Taxon
- tobaccoNicotiana tabacumt0
- Treatment
- Pretreatment with eugenole0
- Gene
- phenylalanine ammonium lyase(PAL)e0
- Outcome
- activity of phenylalanine ammonium lyase(PAL)e0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretreatment with eugenol also induced the increase of the activity of phenylalanine ammonium lyase(PAL)”
t0“tobacco against TMV”
Claim · model-written summary
The authors suggest eugenol may attenuate TMV harm by modulating defense.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- eugenole0
- Interactor
- TMVTobacco mosaic viruse0pathogen
- Outcome
- harmful effects of TMVe0
- Qualifier
- by modulating plant defense systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“eugenol might attenuate the harmful effects of TMV on tobacco plant by modulating plant defense system”
The same questions in other papers
eugenol · physiology: oxidative · Nicotiana tabacum (tobacco)Results differ
3 papers in the same direction as this paper
- positive
- positive
- positive
eugenol · Tobacco mosaic virus · Nicotiana tabacum (tobacco)Results agree
2 papers in the same direction as this paper
- positive
- positive
eugenol · molecular: metabolites · Nicotiana tabacum (tobacco)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.