Abstract
We have previously shown that both endogenous auxin and ethylene promote adventitious root formation in the hypocotyls of derooted sunflower (Helianthus annuus) seedlings. Experiments here showed that promotive effects on rooting of the ethylene precursor, 1-aminocyclopropane-1-carboxylic acid (ACC) and the ethylene-releasing compoud, ethephon (2-chloro-ethylphosphonic acid), depended on the existence of cotyledons and apical bud (major sources of auxin) or the presence of exogenously applied indole-3-acetic acid (IAA)
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Claims 2
Claim · model-written summary
ACC promotion of rooting depended on cotyledons and apical bud or applied IAA.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- 1-aminocyclopropane-1-carboxylic acid (ACC)e0
- Outcome
- rootinge0
- Direction
- promotivee0
- Qualifier
- existence of cotyledons and apical bude0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“promotive effects on rooting of the ethylene precursor, 1-aminocyclopropane-1-carboxylic acid (ACC) and the ethylene-releasing compoud, ethephon (2-chloro-ethylphosphonic acid), depended on the existence of cotyledons and apical bud (major sources of auxin) or the presence of exogenously applied indole-3-acetic acid (IAA)”
t0“sunflower”
Claim · model-written summary
Ethephon promotion of rooting depended on cotyledons and apical bud or applied IAA.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- ethephon (2-chloro-ethylphosphonic acid)e0
- Outcome
- rootinge0
- Direction
- promotivee0
- Qualifier
- exogenously applied indole-3-acetic acid (IAA)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“promotive effects on rooting of the ethylene precursor, 1-aminocyclopropane-1-carboxylic acid (ACC) and the ethylene-releasing compoud, ethephon (2-chloro-ethylphosphonic acid), depended on the existence of cotyledons and apical bud (major sources of auxin) or the presence of exogenously applied indole-3-acetic acid (IAA)”
t0“sunflower”
The same questions in other papers
1-aminocyclopropanecarboxylic acid · growth · Helianthus annuus (common sunflower)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
(2-chloroethyl)phosphonic acid · growth · Helianthus annuus (common sunflower)Positive and negative results
9 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
8 papers more in this group
See all 12 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.