Abstract
Red light suppressed the protein and chlorophyll loss in the disks excised from matured tobacco leaves and floated on water. The red effect was removed by subsequent far-red irradiation and by several inhibitors of protein and nucleic acid synthesis.Red light remarkably promoted the uptake of 32PO4, which could be reversed partly by subsequent far-red irradiation. The absorbed 32PO4 was recovered mainly in acid-insoluble fraction. A remarkable parallelism was found between the sensitivity to red light and the activity of 32PO4 incorporation. Each passed an acute peak at about the 34th hour of incubation.Kinetin inhibited 32PO4 uptake, but induced slightly additive restoration of protein, and chlorophyll levels when it was given together with red light.A participation of red far-red system in protein and phosphate metabolism in leaves was suggested.
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Claims 11
Claim · model-written summary
Red light suppressed the loss of protein and chlorophyll in tobacco leaf disks.
- Taxon
- tobacco
Nicotiana tabacume2 - Organ / stage
- disks excised from matured tobacco leavese1
- Treatment
- Red lighte1
- Outcome
- protein and chlorophyll losse1
- Direction
- suppressede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Red light suppressed the protein and chlorophyll loss in the disks excised from matured tobacco leaves and floated on water”
e2“matured tobacco leaves”
Claim · model-written summary
Subsequent far-red irradiation removed the red-light effect on protein and chlorophyll loss in tobacco leaf disks.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- subsequent far-red irradiatione1
- Outcome
- red effecte1
- Direction
- removede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The red effect was removed by subsequent far-red irradiation”
e2“matured tobacco leaves”
Claim · model-written summary
Several inhibitors of protein and nucleic acid synthesis removed the red-light effect in tobacco leaf disks.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- several inhibitors of protein and nucleic acid synthesise1
- Outcome
- red effecte1
- Direction
- removede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The red effect was removed by subsequent far-red irradiation and by several inhibitors of protein and nucleic acid synthesis”
e2“matured tobacco leaves”
Claim · model-written summary
Red light promoted the uptake of 32PO4 in tobacco leaf disks.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- Red lighte1
- Outcome
- uptake of 32PO4e1
- Direction
- promotede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Red light remarkably promoted the uptake of 32PO4”
e2“matured tobacco leaves”
Claim · model-written summary
Subsequent far-red irradiation partly reversed the red-light promotion of 32PO4 uptake in tobacco leaf disks.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- subsequent far-red irradiatione1
- Outcome
- uptake of 32PO4e1
- Direction
- reversed partlye1
- Qualifier
- could bee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Red light remarkably promoted the uptake of 32PO4, which could be reversed partly by subsequent far-red irradiation”
e2“matured tobacco leaves”
Claim · model-written summary
Absorbed 32PO4 in tobacco leaf disks was recovered mainly in the acid-insoluble fraction.
- Taxon
- tobaccoNicotiana tabacume2
- Outcome
- absorbed 32PO4e1
- Qualifier
- recovered mainly in acid-insoluble fractione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The absorbed 32PO4 was recovered mainly in acid-insoluble fraction”
e2“matured tobacco leaves”
Claim · model-written summary
Sensitivity to red light and the activity of 32PO4 incorporation ran in parallel in tobacco leaf disks.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- red lighte1
- Outcome
- activity of 32PO4 incorporatione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“A remarkable parallelism was found between the sensitivity to red light and the activity of 32PO4 incorporation”
e2“matured tobacco leaves”
Claim · model-written summary
Sensitivity to red light and 32PO4 incorporation activity each peaked at about the 34th hour of incubation.
- Taxon
- tobaccoNicotiana tabacume2
- Outcome
- acute peake1
- Value
- about the 34th hour of incubatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Each passed an acute peak at about the 34th hour of incubation”
e2“matured tobacco leaves”
Claim · model-written summary
Kinetin inhibited 32PO4 uptake in tobacco leaf disks.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- Kinetine1
- Outcome
- 32PO4 uptakee1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Kinetin inhibited 32PO4 uptake”
e2“matured tobacco leaves”
Claim · model-written summary
Kinetin given together with red light slightly and additively restored protein and chlorophyll levels in tobacco leaf disks.
- Taxon
- tobaccoNicotiana tabacume2
- Treatment
- Kinetine1
- Outcome
- protein, and chlorophyll levelse1
- Direction
- restoratione1
- Qualifier
- slightly additivee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Kinetin inhibited 32PO4 uptake, but induced slightly additive restoration of protein, and chlorophyll levels when it was given together with red light”
e2“matured tobacco leaves”
Claim · model-written summary
A participation of the red-far-red system in protein and phosphate metabolism in leaves was suggested.
- Taxon
- tobaccoNicotiana tabacume2
- Outcome
- protein and phosphate metabolisme1
- Qualifier
- red far-red systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“A participation of red far-red system in protein and phosphate metabolism in leaves was suggested”
e2“matured tobacco leaves”
The same questions in other papers
kinetin · physiology: pigments · Nicotiana tabacum (tobacco)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- no effect
2 papers more in this group
See all 6 papers →light · physiology: pigments · Nicotiana tabacum (tobacco)Positive and negative results
10 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- negative
15 papers more in this group
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.