Abstract
Abstract A short impulse of red light has a varying effect on carotenoid synthesis in dark‐grown wheat seedlings. Except for β‐carotene, which remains unchanged in the dark (it increases in continuous light), the carotenoid synthesis shows the same tendency as during constant irradiation. Thus, lutein and neoxanthin slowly increases, while violaxanthin decreases. During a period of constant light following various periods of darkness after the short impulse of light, the pigment changes correspond to those occurring in the dark, but are much more pronounced. The changes are discussed on the basis of phytochrome action.
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Claims 5
Claim · model-written summary
Beta carotene stayed unchanged in darkness after red light.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- darke0
- Outcome
- β‐carotenee0
- Direction
- remains unchangede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Seedlings”
e0“β‐carotene, which remains unchanged in the dark”
Claim · model-written summary
Beta carotene increased under continuous light.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- continuous lighte0
- Outcome
- β‐carotenee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Seedlings”
e0“β‐carotene, which remains unchanged in the dark (it increases in continuous light)”
Claim · model-written summary
Lutein and neoxanthin increased slowly.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- lutein and neoxanthine0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Seedlings”
e0“lutein and neoxanthin slowly increases”
Claim · model-written summary
Violaxanthin decreased.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- violaxanthine0
- Direction
- decreasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Seedlings”
e0“violaxanthin decreases”
Claim · model-written summary
Pigment changes during constant light after darkness were more pronounced than in darkness.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- constant lighte0
- Outcome
- pigment changese0
- Direction
- much more pronouncede0
- Comparator
- darke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Seedlings”
e0“During a period of constant light following various periods of darkness after the short impulse of light, the pigment changes correspond to those occurring in the dark, but are much more pronounced.”
The same questions in other papers
light · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
13 papers in the same direction as this paper · 15 in the opposite direction
- no effect
- no effect
- negative
25 papers more in this group
See all 29 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.