Claim · model-written summary
The authors suggest IAA both directly affects transport and increases root sink strength.
- Taxon
- Phaseolus vulgaris
Phaseolus vulgarise1 - Treatment
- IAAe0
- Outcome
- transporte0
- Qualifier
- increase in the root‐“sink”e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiments involving pretreatment with IAA and transport in cuttings already possessing root primordia, suggest a dual effect of IAA: (I) a direct effect on transport, and (2) an increase in the root‐“sink””
e1“Phaseolus vulgaris (cv. Canadian Wonder) hypocotyl cuttings”
Title
A. ALTMAN; P. F. WAREING Physiologia Plantarum 1975. doi:10.1111/j.1399-3054.1975.tb03760.x
Other claims from this paper (10)
- Intervention effect Removing leaves reduced hypocotyl root formation.
- Intervention effect Apical bud excision was less detrimental to root formation than leaf removal.
- Intervention effect IAA induced more roots when all leaves were present.
- Observation Sugars accumulated slowly at cutting bases during four days after excision.
- Intervention effect IAA greatly increased sugar accumulation at cutting bases.
- Intervention effect IAA increased basal sugar content concurrently with root formation in green and starved cuttings.
- Intervention effect IAA solution applied to hypocotyls enhanced basipetal transport of labeled assimilates.
- Intervention effect IAA solution applied to hypocotyls enhanced accumulation of labeled assimilates there.
- Association IAA-associated accumulation was linked to greater mobilization of labeled assimilates from upper cutting regions.
- Mechanism The authors propose that IAA promotes rooting by increasing sugar availability at the site of root formation.