Abstract
Effect of auxin treatment upon the alkaloid content of Niotiana was examined using hydroponically grown plants. Nicotine content of Nicotiana tabacum was reduced by the addition of 3-indoleacetic acid or 2, 4-dichlorophenoxyacetic acid to nutrient solution, and the incorporation of nitrate-15N into nicotine was decreased by the addition of 2, 4-dichloro-phenoxyacetic acid. Contents of nicotine, nornicotine, anabasine and anatabine in Nicotiana glutinosa were decreased by 2, 4-dichlorophenoxyacetic acid added to the nutrient solution. Foliar applications of eleven kinds of synthetic auxins were effective in reducing nicotine content of Nicotiana tabacum and the effectiveness of the compounds seemed to be concerned with their auxin activities. Foliar application of auxin tended to increase the dry weight of stems whereas decreased that of roots, and, moreover, higher content of soluble sugars and lower content of starch in leaves were observed by the treatment. A possibility of a practical application of auxin to reduce the nicotine content of tobacco plants were drawn from this work.
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Claims 12
Claim · model-written summary
3-indoleacetic acid reduced nicotine content in Nicotiana tabacum.
- Taxon
- Nicotiana tabacum
Nicotiana tabacume0 - Treatment
- 3-indoleacetic acide0
- Outcome
- Nicotine contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nicotine content of Nicotiana tabacum was reduced by the addition of 3-indoleacetic acid or 2, 4-dichlorophenoxyacetic acid to nutrient solution”
Claim · model-written summary
2, 4-dichlorophenoxyacetic acid reduced nicotine content in Nicotiana tabacum.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- 2, 4-dichlorophenoxyacetic acide0
- Outcome
- Nicotine contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nicotine content of Nicotiana tabacum was reduced by the addition of 3-indoleacetic acid or 2, 4-dichlorophenoxyacetic acid to nutrient solution”
Claim · model-written summary
2, 4-dichloro-phenoxyacetic acid decreased incorporation of nitrate-15N into nicotine in Nicotiana tabacum.
- Taxon
- Nicotiana tabacumNicotiana tabacume1
- Treatment
- 2, 4-dichloro-phenoxyacetic acide0
- Outcome
- incorporation of nitrate-15N into nicotinee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the incorporation of nitrate-15N into nicotine was decreased by the addition of 2, 4-dichloro-phenoxyacetic acid”
e1“Nicotiana tabacum was reduced”
Claim · model-written summary
2, 4-dichlorophenoxyacetic acid decreased nicotine, nornicotine, and anabasine contents in Nicotiana glutinosa.
- Taxon
- Nicotiana glutinosa
Nicotiana glutinosae0 - Treatment
- 2, 4-dichlorophenoxyacetic acide0
- Outcome
- Contents of nicotine, nornicotine, anabasinee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Contents of nicotine, nornicotine, anabasine and anatabine in Nicotiana glutinosa were decreased by 2, 4-dichlorophenoxyacetic acid added to the nutrient solution”
Claim · model-written summary
2, 4-dichlorophenoxyacetic acid decreased anatabine content in Nicotiana glutinosa.
- Taxon
- Nicotiana glutinosaNicotiana glutinosae0
- Treatment
- 2, 4-dichlorophenoxyacetic acide0
- Outcome
- anatabinee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Contents of nicotine, nornicotine, anabasine and anatabine in Nicotiana glutinosa were decreased by 2, 4-dichlorophenoxyacetic acid added to the nutrient solution”
Claim · model-written summary
Foliar applications of eleven synthetic auxins reduced nicotine content of Nicotiana tabacum.
- Taxon
- Nicotiana tabacumNicotiana tabacume0
- Treatment
- Foliar applications of eleven kinds of synthetic auxinse0
- Outcome
- nicotine contente0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applications of eleven kinds of synthetic auxins were effective in reducing nicotine content of Nicotiana tabacum”
Claim · model-written summary
Auxin activity appeared related to nicotine-reducing effectiveness in tobacco.
- Taxon
- Tobacco PlantsNicotiana tabacumt0
- Treatment
- auxin activitiese0
- Outcome
- effectiveness of the compoundse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effectiveness of the compounds seemed to be concerned with their auxin activities”
t0“Tobacco Plants”
Claim · model-written summary
Foliar auxin tended to increase tobacco stem dry weight.
- Taxon
- Tobacco PlantsNicotiana tabacumt0
- Treatment
- Foliar application of auxine0
- Outcome
- dry weight of stemse0
- Direction
- increasee0
- Qualifier
- tended toe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of auxin tended to increase the dry weight of stems whereas decreased that of roots”
t0“Tobacco Plants”
Claim · model-written summary
Foliar auxin decreased tobacco root dry weight.
- Taxon
- Tobacco PlantsNicotiana tabacumt0
- Treatment
- Foliar application of auxine0
- Outcome
- that of rootse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar application of auxin tended to increase the dry weight of stems whereas decreased that of roots”
t0“Tobacco Plants”
Claim · model-written summary
Foliar auxin increased soluble sugars in tobacco leaves.
- Taxon
- Tobacco PlantsNicotiana tabacumt0
- Organ / stage
- leavese0
- Treatment
- Foliar application of auxine1
- Outcome
- content of soluble sugarse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher content of soluble sugars and lower content of starch in leaves were observed by the treatment”
e1“Foliar application of auxin”
t0“Tobacco Plants”
Claim · model-written summary
Foliar auxin lowered starch content in tobacco leaves.
- Taxon
- Tobacco PlantsNicotiana tabacumt0
- Organ / stage
- leavese0
- Treatment
- Foliar application of auxine1
- Outcome
- content of starche0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher content of soluble sugars and lower content of starch in leaves were observed by the treatment”
e1“Foliar application of auxin”
t0“Tobacco Plants”
Claim · model-written summary
The authors suggested auxin could be applied practically to reduce nicotine content of tobacco plants.
- Taxon
- tobacco plantsNicotiana tabacume0
- Outcome
- practical application of auxin to reduce the nicotine contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A possibility of a practical application of auxin to reduce the nicotine content of tobacco plants were drawn from this work”
The same questions in other papers
application · molecular: metabolites · Nicotiana tabacum (tobacco)Results agree
19 papers in the same direction as this paper
- positive
- positive
- positive
16 papers more in this group
See all 20 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.