Claim · model-written summary
ABA inhibition was stronger when applied 24 h before inoculation.
- Taxon
- soybean
Glycine maxt0 - Treatment
- treatment made 24 h prior to inoculatione0
- Outcome
- ABA effecte0
- Direction
- more pronouncede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The ABA effect was more pronounced for the treatment made 24 h prior to inoculation”
t0“soybean”
Title
Plant growth regulators and phloem exudates modulate root nodulation of soybean
Asghari Bano; James E. Harper Functional Plant Biology 2002. doi:10.1071/fp02031
Other claims from this paper (13)
- Intervention effect Synthetic ABA inhibited nodule initiation, development and function in soybean.
- Intervention effect Delaying ABA application to 48 h after inoculation decreased inhibition of nodulation.
- Intervention effect Delaying Williams 82 phloem exudate application to 48 h after inoculation decreased nodulation inhibition.
- Intervention effect Indoleacetic acid inhibited nodule number, more strongly in Williams 82 than NOD1-3.
- Intervention effect Benzyladenine inhibited nodule number, more strongly in Williams 82 than NOD1-3.
- Association Endogenous free ABA in seedling tissues appeared to respond to inoculation.
- Intervention effect Crude Williams 82 phloem exudate inhibited NOD1-3 root nodulation in a concentration-dependent way.
- Intervention effect Crude NOD1-3 phloem exudate inhibited NOD1-3 root nodulation in a concentration-dependent way.
- Intervention effect Partially purified Williams 82 phloem exudate suppressed NOD1-3 nodulation by 54%.
- Intervention effect Partially purified NOD1-3 phloem exudate inhibited nodulation by 23%.
- Observation ABA concentrations were nearly identical in the applied phloem fractions.
- Intervention effect Partially purified leaf extract from NOD1-3 was less inhibitory than the Williams 82 fraction.
- Mechanism Endogenous ABA levels do not appear to directly account for autoregulatory nodulation control.