Claim · model-written summary
Phytochrome A is proposed to enhance the growth response to reduced phytochrome B activity.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Gene
- phyAe0
- Outcome
- hypocotyl-growth responsee0
- Qualifier
- decreases in phyB in FR-light-absorbing forme0
Not reportedMaterialCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“A product of phyA is therefore proposed to enhance the hypocotyl-growth response to decreases in phyB in FR-light-absorbing form”
t0“Arabidopsis thaliana”
Title
J. J. Casal PLANT PHYSIOLOGY 1996. doi:10.1104/pp.112.3.965
Other claims from this paper (8)
- Intervention effect Delayed far-red pulses promoted less hypocotyl growth than end-of-day pulses.
- Intervention effect Interposed white light minus blue maintained wild-type seedling responsivity.
- Observation The interposed light failed to maintain responsivity in the phyA mutant.
- Intervention effect Hourly R+FR pulses promoted more stem growth than one end-of-day pulse in wild-type Arabidopsis and five other named plants.
- Observation Wild-type Arabidopsis responded to high end-of-day R/FR ratios.
- Observation The phyA mutant required stronger reductions in end-of-day R/FR ratio.
- Observation In sunlight phyA seedlings did not respond to early warning signals from neighbors.
- Association Hypocotyl growth promotion in phyA seedlings required higher density than wild type.