Abstract
1. Lanolin emulsions containing various growth-regulating chemicals were sprayed on attached bean leaves and the plants were subsequently placed in darkness, together with controls. Quantitative analysis of the starch and dextrin content of the leaves showed that application of sprays containing indoleacetic, naphthaleneacetic, indolebutyric, indolepropionic, and naphthoxyacetic acids resulted in marked increase in the rate of starch digestion. Phenylacetic acid resulted in only a slight increase, while naphthalene acetamide had no noticeable effect. 2. Treatment of relatively old and mature leaves with these various chemicals either failed to stimulate, or inhibited to some extent, the hydrolysis of starch during a 12-hour period of darkness following treatment. 3. Application of these growth-regulating chemicals did not result in a noticeable increase in the rate of starch digestion in leaves kept at 62⚬-64⚬ or at 90⚬-92⚬, but was effective at 74⚬-76⚬ F. 4. The sugar content of leaves kept in darkness increased appreciably for a period of time following treatment with indoleacetic acid, a response previously observed in leaves treated with naphthaleneacetic acid.
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Claims 7
Claim · model-written summary
Five acids markedly increased starch digestion in bean leaves.
- Taxon
- Beant0
- Treatment
- indoleacetic, naphthaleneacetic, indolebutyric, indolepropionic, and naphthoxyacetic acidse0
- Outcome
- rate of starch digestione0
- Direction
- increasee0
Not reportedComparator
Verbatim
t0“Bean Leaves”
e0“application of sprays containing indoleacetic, naphthaleneacetic, indolebutyric, indolepropionic, and naphthoxyacetic acids resulted in marked increase in the rate of starch digestion.”
Claim · model-written summary
Phenylacetic acid slightly increased starch digestion.
Not reportedComparator
Verbatim
t0“Bean Leaves”
e0“Phenylacetic acid resulted in only a slight increase”
Claim · model-written summary
Naphthalene acetamide had no noticeable effect.
- Taxon
- Beant0
- Treatment
- naphthalene acetamidee0
- Outcome
- no noticeable effecte0
- Direction
- no noticeable effecte0
Not reportedComparator
Verbatim
t0“Bean Leaves”
e0“naphthalene acetamide had no noticeable effect”
Claim · model-written summary
Older mature leaves showed no stimulation or inhibition of starch hydrolysis after chemical treatment.
- Taxon
- Beant0
- Organ / stage
- relatively old and mature leavese0
- Treatment
- these various chemicalse0
- Outcome
- hydrolysis of starche0
- Direction
- failed to stimulate, or inhibitede0
- Qualifier
- 12-hour period of darknesse0
Not reportedComparator
Verbatim
t0“Bean Leaves”
e0“Treatment of relatively old and mature leaves with these various chemicals either failed to stimulate, or inhibited to some extent, the hydrolysis of starch during a 12-hour period of darkness following treatment.”
Claim · model-written summary
Chemicals did not noticeably increase starch digestion at 62⚬-64⚬ or 90⚬-92⚬.
- Taxon
- Beant0
- Treatment
- these growth-regulating chemicalse0
- Outcome
- rate of starch digestione0
- Direction
- did not result in a noticeable increasee0
- Qualifier
- 62⚬-64⚬ or at 90⚬-92⚬e0
Not reportedComparator
Verbatim
t0“Bean Leaves”
e0“Application of these growth-regulating chemicals did not result in a noticeable increase in the rate of starch digestion in leaves kept at 62⚬-64⚬ or at 90⚬-92⚬”
Claim · model-written summary
Chemicals stimulated starch digestion at 74⚬-76⚬ F.
Not reportedTreatmentComparator
Verbatim
t0“Bean Leaves”
e0“but was effective at 74⚬-76⚬ F.”
Claim · model-written summary
Indoleacetic acid increased leaf sugar content in darkness.
- Taxon
- Beant0
- Treatment
- indoleacetic acide0
- Outcome
- sugar content of leavese0
- Direction
- increasede0
- Qualifier
- kept in darknesse0
Not reportedComparator
Verbatim
t0“Bean Leaves”
e0“The sugar content of leaves kept in darkness increased appreciably for a period of time following treatment with indoleacetic acid”
The same questions in other papers
indole-3-acetic acid · quality: sugar starch · Phaseolus vulgaris (common bean)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.