Abstract
Far red light reversal of red light induced leaf expansion and enzyme changes were investigated in seedlings of Phaseolus vulgaris var. Black Valentine. In etiolated plants growth, anthocyanin accumulation and increases in glyceraldehyde-3-phosphate dehydrogenase and glycolic acid oxidase activities induced by a 10 min red irradiation were stopped by a 7 min far red irradiation given 17, 24, or 48 hr after activation. Etiolated seedlings illuminated for 24 hr with white light and seedlings grown in continuous light remained sensitive to far red reversal. This suggests that the far red sensitive receptor does not decay with time but remains associated with the site of its regulatory functions.
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Claims 5
Claim · model-written summary
Far red irradiation stopped red induced growth in etiolated seedlings when given 17, 24 or 48 hours later.
- Taxon
- Phaseolus vulgaris var. Black Valentine
Phaseolus vulgarise1 - Treatment
- 7 min far red irradiatione0
- Outcome
- growthe0
- Direction
- stoppede0
- Qualifier
- 17, 24, or 48 hr after activatione0
- Comparator
- 10 min red irradiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In etiolated plants growth, anthocyanin accumulation and increases in glyceraldehyde-3-phosphate dehydrogenase and glycolic acid oxidase activities induced by a 10 min red irradiation were stopped by a 7 min far red irradiation given 17, 24, or 48 hr after activation”
e1“seedlings of Phaseolus vulgaris var. Black Valentine”
Claim · model-written summary
Far red irradiation stopped red induced anthocyanin accumulation in etiolated seedlings.
- Taxon
- Phaseolus vulgaris var. Black ValentinePhaseolus vulgarise1
- Treatment
- 7 min far red irradiatione0
- Outcome
- anthocyanin accumulatione0
- Direction
- stoppede0
- Comparator
- 10 min red irradiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In etiolated plants growth, anthocyanin accumulation and increases in glyceraldehyde-3-phosphate dehydrogenase and glycolic acid oxidase activities induced by a 10 min red irradiation were stopped by a 7 min far red irradiation given 17, 24, or 48 hr after activation”
e1“seedlings of Phaseolus vulgaris var. Black Valentine”
Claim · model-written summary
Far red irradiation stopped red induced increases in two enzyme activities.
- Taxon
- Phaseolus vulgaris var. Black ValentinePhaseolus vulgarise1
- Treatment
- 7 min far red irradiatione0
- Gene
- glyceraldehyde-3-phosphate dehydrogenase and glycolic acid oxidasee0
- Outcome
- glyceraldehyde-3-phosphate dehydrogenase and glycolic acid oxidase activitiese0
- Direction
- stoppede0
- Comparator
- 10 min red irradiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In etiolated plants growth, anthocyanin accumulation and increases in glyceraldehyde-3-phosphate dehydrogenase and glycolic acid oxidase activities induced by a 10 min red irradiation were stopped by a 7 min far red irradiation given 17, 24, or 48 hr after activation”
e1“seedlings of Phaseolus vulgaris var. Black Valentine”
Claim · model-written summary
Seedlings exposed to white light for 24 hours or grown under continuous light remained sensitive to far red reversal.
- Taxon
- Phaseolus vulgaris var. Black ValentinePhaseolus vulgarise1
- Outcome
- remained sensitive to far red reversale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Etiolated seedlings illuminated for 24 hr with white light and seedlings grown in continuous light remained sensitive to far red reversal”
e1“seedlings of Phaseolus vulgaris var. Black Valentine”
Claim · model-written summary
The authors infer that the far red sensitive receptor persists at its regulatory site.
- Taxon
- Phaseolus vulgaris var. Black ValentinePhaseolus vulgarise1
- Outcome
- does not decay with timee0
- Qualifier
- remains associated with the site of its regulatory functionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the far red sensitive receptor does not decay with time but remains associated with the site of its regulatory functions”
e1“seedlings of Phaseolus vulgaris var. Black Valentine”
The same questions in other papers
radiation · growth · Phaseolus vulgaris (common bean)Results differ
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- positive
- positive
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- positive
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radiation · physiology: enzyme activity · Phaseolus vulgaris (common bean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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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.