Abstract
Abstract— The accumulation of phytochrome in the dark was measured for Avena sativa seedlings after a white light pretreatment and for Sorghum vulgare seedlings after continuous red or far‐red light treatments, using the herbicide Norflurazon to prevent greening under continuous irradiation. In both cases the accumulation of phytochrome depends on the state of the phytochrome at the light‐dark transition: high P fr levels (red light pulse) led to a slower rate of phytochrome accumulation than lower P fr levels (long wavelength far‐red (RG 9) light pulse). Poly‐(A + )‐RNA was isolated fromA. sativa seedlings grown for 48 h in darkness + 24 h WL + light pulse (5 min) (red, RG 9 light, red followed by RG 9 light or RG 9 followed by red light pulse) + 19 h darkness. The poly‐(A + )‐RNA was translated in a rabbit reticulocyte lysate system and the translation products were immunoprecipitated by specific anti‐phytochrome antibodies. It was demonstrated that the activity of mRNA coding for phytochrome was under phytochrome control.
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Claims 3
Claim · model-written summary
High P fr at the light-dark transition slowed phytochrome accumulation in oat seedlings relative to lower P fr.
- Taxon
- Avena sativa
Avena sativae1 - Treatment
- red light pulsee0
- Gene
- phytochromee0
- Outcome
- rate of phytochrome accumulatione0
- Direction
- slowere0
- Comparator
- long wavelength far‐red (RG 9) light pulsee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both cases the accumulation of phytochrome depends on the state of the phytochrome at the light‐dark transition: high P fr levels (red light pulse) led to a slower rate of phytochrome accumulation than lower P fr levels (long wavelength far‐red (RG 9) light pulse)”
e1“Avena sativa seedlings after a white light pretreatment”
Claim · model-written summary
High P fr at the light-dark transition slowed phytochrome accumulation in sorghum seedlings relative to lower P fr.
- Taxon
- Sorghum vulgare
Sorghum bicolore1 - Treatment
- red light pulsee0
- Gene
- phytochromee0
- Outcome
- rate of phytochrome accumulatione0
- Direction
- slowere0
- Comparator
- long wavelength far‐red (RG 9) light pulsee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both cases the accumulation of phytochrome depends on the state of the phytochrome at the light‐dark transition: high P fr levels (red light pulse) led to a slower rate of phytochrome accumulation than lower P fr levels (long wavelength far‐red (RG 9) light pulse)”
e1“Sorghum vulgare seedlings after continuous red or far‐red light treatments”
Claim · model-written summary
Phytochrome controlled the activity of mRNA encoding phytochrome in oat seedlings.
- Taxon
- A. sativaAvena sativae1
- Gene
- phytochromee0
- Outcome
- activity of mRNA coding for phytochromee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was demonstrated that the activity of mRNA coding for phytochrome was under phytochrome control”
e1“A. sativa seedlings”
The same questions in other papers
light · molecular: metabolites · Sorghum bicolor (sorghum)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
light · molecular: metabolites · Avena sativa (oats)Positive and negative results
4 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 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.