Claim · model-written summary
Five-minute red, green and far-red pulses depressed extension rate.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- Pulses (5 minutes) of red (660 nanometers), green (530 nanometers), and far-red (730 nanometers) lighte0
- Outcome
- extension ratee0
- Direction
- depressione0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pulses (5 minutes) of red (660 nanometers), green (530 nanometers), and far-red (730 nanometers) light caused marked extension rate depression”
t0“Wheat”
Title
Rapid Phytochrome Regulation of Wheat Seedling Extension
Harry Smith; G. Michael Jackson PLANT PHYSIOLOGY 1987. doi:10.1104/pp.84.4.1059
Other claims from this paper (7)
- Intervention effect Dark-grown wheat seedlings decelerated extension growth after light exposure, with a mean latency of 10.4 minutes.
- Observation The five-minute red-light effect was not reversed by 730-nanometer far-red light.
- Observation One-second red pulses were effective and immediately reversible by 759-nanometer far-red light.
- Intervention effect Green-pretreated seedlings showed red-light-induced deceleration after a longer mean lag of 23.75 minutes.
- Intervention effect Green-pretreated seedlings showed no response to red light for less than one minute.
- Observation In green-pretreated seedlings, five minutes of red light was fully reversible by five minutes of 730-nanometer far-red.
- Observation Nonpretreated seedlings were approximately 100 times more sensitive to the far-red-absorbing form of phytochrome than pretreated seedlings.