Abstract
1. Detached segments and thin sections of the second internode of the bean, smeared apically with indoleacetic acid in lanolin and placed with the basal ends in contact with a complete nutrient, respond in essentially the same way as similarly treated stems on the plant. In addition to apical swelling and root formation, the detached segments enlarge and produce roots at the bases. 2. When treated basally and placed with the apical end on the nutrient, only the basal end enlarges. When treated apically and placed apical end on the nutrient, only the apical end enlarges. 3. Treated segments or sections placed on White's nutrient lacking either sugar or nitrogen show no enlargement. 4. Segments placed with either the apical or basal end on nutrient to which 0.1 per cent of aqueous indoleacetic was added enlarge only at the end in contact with the nutrient. 5. The movement of the indoleacetic acid, or some derivative from it, takes place almost entirely in a basipetal direction with little acropetal movement. 6. When indoleacetic acid is applied to detached segments or thin sections in contact with a complete nutrient, there is digestion of the starch present, abundant growth and proliferation, and a direct absorption of foods and nutrients which are mobilized to the region of application and used in the development of additional cells and tissues. The cellular changes and responses in the detached segments and thin sections are similar to those which take place in intact treated second internodes.
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Claims 7
Claim · model-written summary
Treated detached bean segments swelled apically, formed roots and enlarged at their bases.
- Taxon
- beane0
- Organ / stage
- second internodee0
- Treatment
- smeared apically with indoleacetic acid in lanoline0
- Outcome
- apical swelling and root formatione0
- Comparator
- similarly treated stems on the plante0
Not reportedDirection
Verbatim
e0“Detached segments and thin sections of the second internode of the bean, smeared apically with indoleacetic acid in lanolin and placed with the basal ends in contact with a complete nutrient, respond in essentially the same way as similarly treated stems on the plant. In addition to apical swelling and root formation, the detached segments enlarge and produce roots at the bases.”
Claim · model-written summary
Basal application enlarged only the basal end.
Not reportedComparator
Verbatim
e0“When treated basally and placed with the apical end on the nutrient, only the basal end enlarges.”
t0“the Bean”
Claim · model-written summary
Apical application enlarged only the apical end.
Not reportedComparator
Verbatim
e0“When treated apically and placed apical end on the nutrient, only the apical end enlarges.”
t0“the Bean”
Claim · model-written summary
Treated segments or sections did not enlarge without sugar or nitrogen.
- Taxon
- Beant0
- Treatment
- White's nutrient lacking either sugar or nitrogene0
- Outcome
- enlargemente0
- Direction
- no enlargemente0
Not reportedComparator
Verbatim
e0“Treated segments or sections placed on White's nutrient lacking either sugar or nitrogen show no enlargement.”
t0“the Bean”
Claim · model-written summary
Indoleacetic acid in nutrient enlarged only the segment end contacting it.
- Taxon
- Beant0
- Treatment
- 0.1 per cent of aqueous indoleacetice0
- Outcome
- end in contact with the nutriente0
- Direction
- enlargee0
Not reportedComparator
Verbatim
e0“Segments placed with either the apical or basal end on nutrient to which 0.1 per cent of aqueous indoleacetic was added enlarge only at the end in contact with the nutrient.”
t0“the Bean”
Claim · model-written summary
Indoleacetic acid or a derivative moved mainly basipetally with little acropetal movement.
Verbatim
e0“The movement of the indoleacetic acid, or some derivative from it, takes place almost entirely in a basipetal direction with little acropetal movement.”
t0“the Bean”
Claim · model-written summary
Indoleacetic acid treatment led to starch digestion, cell growth and nutrient absorption in detached sections.
- Taxon
- Beant0
- Organ / stage
- detached segments or thin sectionse0
- Treatment
- indoleacetic acide0
- Outcome
- digestion of the starch present, abundant growth and proliferation, and a direct absorption of foods and nutrientse0
Not reportedComparatorDirection
Verbatim
e0“When indoleacetic acid is applied to detached segments or thin sections in contact with a complete nutrient, there is digestion of the starch present, abundant growth and proliferation, and a direct absorption of foods and nutrients which are mobilized to the region of application and used in the development of additional cells and tissues.”
t0“the Bean”
The same questions in other papers
indole-3-acetic acid · growth · Phaseolus vulgaris (common bean)Results differ
17 papers in the same direction as this paper · 13 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
28 papers more in this group
See all 32 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.