Abstract
Abstract— Treatment of etiolated pea seedlings with a short exposure to red light caused a stimulation of growth (size and dry wt production) and carotenoid synthesis during the following 48 hr compared with seedlings kept entirely in darkness.The effect is nullified by a following dose of far red light and thus the phenomenon is probably phytochrome‐controlled. Similar treatment with red light one hour before continuous illumination with white light tended to reduce the lag period for chlorophyll synthesis.Again a following dose of far red light reversed this response.
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Claims 6
Claim · model-written summary
Red light stimulated growth of etiolated pea seedlings over 48 hours relative to darkness.
- Taxon
- pea seedlings
Lathyrus oleraceuse0 - Treatment
- red lighte0
- Outcome
- growth (size and dry wt production)e0
- Direction
- stimulatione0
- Qualifier
- following 48 hre0
- Comparator
- seedlings kept entirely in darknesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment of etiolated pea seedlings with a short exposure to red light caused a stimulation of growth (size and dry wt production) and carotenoid synthesis during the following 48 hr compared with seedlings kept entirely in darkness”
Claim · model-written summary
Red light stimulated carotenoid synthesis in pea seedlings over 48 hours relative to darkness.
- Taxon
- pea seedlingsLathyrus oleraceuse0
- Treatment
- red lighte0
- Outcome
- carotenoid synthesise0
- Direction
- stimulatione0
- Comparator
- seedlings kept entirely in darknesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment of etiolated pea seedlings with a short exposure to red light caused a stimulation of growth (size and dry wt production) and carotenoid synthesis during the following 48 hr compared with seedlings kept entirely in darkness”
Claim · model-written summary
A subsequent far red dose nullified the red light response in pea seedlings.
- Taxon
- PEA SEEDLINGSLathyrus oleraceust0
- Treatment
- following dose of far red lighte0
- Outcome
- effecte0
- Direction
- nullifiede0
- Comparator
- red lighte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PEA SEEDLINGS”
e0“The effect is nullified by a following dose of far red light”
e1“short exposure to red light caused”
Claim · model-written summary
Red light before white illumination tended to shorten the lag in chlorophyll synthesis.
- Taxon
- PEA SEEDLINGSLathyrus oleraceust0
- Treatment
- red light one hour before continuous illumination with white lighte0
- Outcome
- lag period for chlorophyll synthesise0
- Direction
- reducee0
- Qualifier
- tended toe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PEA SEEDLINGS”
e0“Similar treatment with red light one hour before continuous illumination with white light tended to reduce the lag period for chlorophyll synthesis”
Claim · model-written summary
A following far red dose reversed the chlorophyll synthesis response.
- Taxon
- PEA SEEDLINGSLathyrus oleraceust0
- Treatment
- following dose of far red lighte0
- Outcome
- this responsee0
- Direction
- reversede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PEA SEEDLINGS”
e0“Again a following dose of far red light reversed this response”
Claim · model-written summary
The light response is probably controlled by phytochrome.
- Taxon
- PEA SEEDLINGSLathyrus oleraceust0
- Gene
- phytochromee0
- Outcome
- phenomenone0
- Qualifier
- probablye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“PEA SEEDLINGS”
e0“the phenomenon is probably phytochrome‐controlled”
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See all 19 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.