Abstract
Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki) submerged in buffer solution with constant air‐bubbling. The osmotic pressure of the cell sap decreased during elongation of coleoptiles. In the presence of 30 μ M aminooxyacetic acid, an inhibitor of ethylene biosynthesis, in‐dole‐3‐acetic acid at 30 μ M accelerated the decrease in the osmotic pressure in the early stage of growth. 1‐Aminocyclopropane‐1‐carboxylic acid at 30 μ M did not influence the decrease in the osmotic pressure. Both indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxyIic acid decreased the minimum stress‐relaxation time and the relaxation rate of the cell wall, suggesting that both auxin and ethylene induce elongation of rice coleoptiles by stimulating cell wall loosening. These growth regulators caused an increase in the level of glucose in hemicelluloses in the early stage of growth and a decrease in the level in the subsequent last growth phase. Indole‐3‐acetic acid decreased the hydroxyproline and glucosamine levels per unit dry weight of the cell wall. These changes in the level of cell wall components may be associated with the changes in the mechanical properties of the cell walls caused by auxin and ethylene.
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Claims 13
Claim · model-written summary
Indole-3-acetic acid stimulated elongation of rice coleoptiles.
- Taxon
- rice
Oryza sativae1 - Material
- Sasanishikie1
- Organ / stage
- coleoptilese1
- Treatment
- Indole‐3‐acetic acide1
- Outcome
- elongatione1
- Direction
- stimulatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
Claim · model-written summary
1-Aminocyclopropane-1-carboxylic acid, the ethylene precursor, stimulated elongation of rice coleoptiles.
- Taxon
- riceOryza sativae1
- Material
- Sasanishikie1
- Organ / stage
- coleoptilese1
- Treatment
- 1‐aminocyclopropane‐1‐carboxylic acide1
- Outcome
- elongatione1
- Direction
- stimulatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
Claim · model-written summary
Osmotic pressure of the rice coleoptile cell sap decreased during elongation.
- Taxon
- riceOryza sativae1
- Outcome
- osmotic pressure of the cell sape2
- Direction
- decreasede2
- Qualifier
- during elongation of coleoptilese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e2“The osmotic pressure of the cell sap decreased during elongation of coleoptiles”
Claim · model-written summary
Indole-3-acetic acid at 30 µM accelerated the decrease in osmotic pressure in the early growth stage when aminooxyacetic acid was present.
- Taxon
- riceOryza sativae1
- Treatment
- in‐dole‐3‐acetic acid at 30 μ Me3
- Outcome
- osmotic pressuree3
- Direction
- acceleratede3
- Qualifier
- In the presence of 30 μ M aminooxyacetic acide3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e3“In the presence of 30 μ M aminooxyacetic acid, an inhibitor of ethylene biosynthesis, in‐dole‐3‐acetic acid at 30 μ M accelerated the decrease in the osmotic pressure in the early stage of growth”
Claim · model-written summary
1-Aminocyclopropane-1-carboxylic acid at 30 µM did not influence the decrease in osmotic pressure.
- Taxon
- riceOryza sativae1
- Treatment
- 1‐Aminocyclopropane‐1‐carboxylic acid at 30 μ Me4
- Outcome
- osmotic pressuree4
- Direction
- no_changeinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e4“1‐Aminocyclopropane‐1‐carboxylic acid at 30 μ M did not influence the decrease in the osmotic pressure”
Claim · model-written summary
Indole-3-acetic acid decreased the minimum stress-relaxation time and the relaxation rate of the rice coleoptile cell wall.
- Taxon
- riceOryza sativae1
- Treatment
- indole‐3‐acetic acide5
- Outcome
- minimum stress‐relaxation time and the relaxation rate of the cell walle5
- Direction
- decreasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e5“Both indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxyIic acid decreased the minimum stress‐relaxation time and the relaxation rate of the cell wall”
Claim · model-written summary
1-Aminocyclopropane-1-carboxylic acid decreased the minimum stress-relaxation time and the relaxation rate of the rice coleoptile cell wall.
- Taxon
- riceOryza sativae1
- Treatment
- 1‐aminocyclopropane‐1‐carboxyIic acide5
- Outcome
- minimum stress‐relaxation time and the relaxation rate of the cell walle5
- Direction
- decreasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e5“Both indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxyIic acid decreased the minimum stress‐relaxation time and the relaxation rate of the cell wall”
Claim · model-written summary
Auxin and ethylene induce rice coleoptile elongation by stimulating cell wall loosening.
- Taxon
- riceOryza sativae6
- Outcome
- elongatione6
- Qualifier
- by stimulating cell wall looseninge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e6“suggesting that both auxin and ethylene induce elongation of rice coleoptiles by stimulating cell wall loosening”
Claim · model-written summary
Indole-3-acetic acid increased glucose in hemicelluloses of rice coleoptile cell walls in the early growth stage.
- Taxon
- riceOryza sativae1
- Treatment
- growth regulatorse7
- Outcome
- level of glucose in hemicellulosese7
- Direction
- increasee7
- Qualifier
- in the early stage of growthe7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e7“These growth regulators caused an increase in the level of glucose in hemicelluloses in the early stage of growth and a decrease in the level in the subsequent last growth phase”
Claim · model-written summary
1-Aminocyclopropane-1-carboxylic acid increased glucose in hemicelluloses of rice coleoptile cell walls in the early growth stage.
- Taxon
- riceOryza sativae1
- Treatment
- growth regulatorse7
- Outcome
- level of glucose in hemicellulosese7
- Direction
- increasee7
- Qualifier
- in the early stage of growthe7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e7“These growth regulators caused an increase in the level of glucose in hemicelluloses in the early stage of growth and a decrease in the level in the subsequent last growth phase”
Claim · model-written summary
Indole-3-acetic acid decreased glucose in hemicelluloses of rice coleoptile cell walls in the last growth phase.
- Taxon
- riceOryza sativae1
- Treatment
- growth regulatorse7
- Outcome
- level of glucose in hemicellulosese7
- Direction
- decreasee7
- Qualifier
- in the subsequent last growth phasee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e7“These growth regulators caused an increase in the level of glucose in hemicelluloses in the early stage of growth and a decrease in the level in the subsequent last growth phase”
Claim · model-written summary
1-Aminocyclopropane-1-carboxylic acid decreased glucose in hemicelluloses of rice coleoptile cell walls in the last growth phase.
- Taxon
- riceOryza sativae1
- Treatment
- growth regulatorse7
- Outcome
- level of glucose in hemicellulosese7
- Direction
- decreasee7
- Qualifier
- in the subsequent last growth phasee7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e7“These growth regulators caused an increase in the level of glucose in hemicelluloses in the early stage of growth and a decrease in the level in the subsequent last growth phase”
Claim · model-written summary
Indole-3-acetic acid decreased hydroxyproline and glucosamine levels per unit dry weight of the cell wall.
- Taxon
- riceOryza sativae1
- Treatment
- Indole‐3‐acetic acide2
- Outcome
- hydroxyproline and glucosamine levels per unit dry weight of the cell walle2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Indole‐3‐acetic acid and 1‐aminocyclopropane‐1‐carboxylic acid, the precursor of ethylene, stimulated elongation of coleoptiles of seedlings of intact rice ( Oryza sativa L. cv. Sasanishiki)”
e2“Indole‐3‐acetic acid decreased the hydroxyproline and glucosamine levels per unit dry weight of the cell wall”
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See all 47 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.