Abstract
Leaves of dark-grown corn (Zea mays) were illuminated for periods ranging from 3 minutes to 12 hours. The changes in the activities of ribose-5-phosphate isomerase, ribulose-5-phosphate kinase, and ribulose-1,5-diphosphate carboxylase were followed.The activity of ribose-5-phosphate isomerase did not change significantly until between 12 and 24 hours of illumination. An increase in ribulose-5-phosphate kinase activity occurred after a lag of about 6 hours. The increase in carboxylase activity began after 3 minutes of illumination and increased until after 3 to 6 hours in the light, after which it began to decline. The increases in these enzymes appear to be the result of protein synthesis.
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Claims 4
Claim · model-written summary
Isomerase activity did not change significantly until 12 to 24 hours of illumination.
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- illuminatione0
- Gene
- ribose-5-phosphate isomerasee0
- Outcome
- activity of ribose-5-phosphate isomerasee0
- Direction
- did not changee0
- Qualifier
- between 12 and 24 hourse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of ribose-5-phosphate isomerase did not change significantly until between 12 and 24 hours of illumination.”
e1“Leaves of dark-grown corn (Zea mays) were illuminated”
Claim · model-written summary
Kinase activity increased after a lag of about 6 hours.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- illuminatede1
- Gene
- ribulose-5-phosphate kinasee0
- Outcome
- ribulose-5-phosphate kinase activitye0
- Direction
- increasee0
- Qualifier
- after a lag of about 6 hourse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in ribulose-5-phosphate kinase activity occurred after a lag of about 6 hours.”
e1“Leaves of dark-grown corn (Zea mays) were illuminated”
Claim · model-written summary
Carboxylase activity increased beginning after 3 minutes of light and then declined after 3 to 6 hours.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- illuminatione0
- Gene
- ribulose-1,5-diphosphate carboxylasee2
- Outcome
- carboxylase activitye0
- Direction
- increasee0
- Qualifier
- after 3 minutes of illuminatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in carboxylase activity began after 3 minutes of illumination and increased until after 3 to 6 hours in the light, after which it began to decline.”
e1“Leaves of dark-grown corn (Zea mays) were illuminated”
e2“ribulose-1,5-diphosphate carboxylase were followed”
Claim · model-written summary
The enzyme increases appear to result from protein synthesis.
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- increases in these enzymese0
- Qualifier
- protein synthesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increases in these enzymes appear to be the result of protein synthesis.”
e1“Leaves of dark-grown corn (Zea mays) were illuminated”
The same questions in other papers
light · molecular: metabolites · Zea mays (maize)Positive and negative results
14 papers in the same direction as this paper · 15 in the opposite direction
- no effect
- positive
- positive
26 papers more in this group
See all 30 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.