Abstract
Effects oflight oncarbohydrate levels andcertain carbon metabolizing enzymeactivities werestudied during theearly development oftomato(Lycopersicon esculentum) fruit. Sucrose levels werelowandcontinued todecline during development and wereunaffected bylight. Starch wassignificantly greater inlight. Invertase activity wassimilar inbothlight- anddark-grown fruit. Sucrose synthase activity wasmuchlower thaninvertase and showedaslight decrease inlight-grown fruit between days21 and28.Light-grown fruit alsohadhigher ADPglucose pyrophosphorylase activity thandark-grown fruit, whichwascorrelated withhigher starch levels. Therapidly decreasing activity ofADP glucose pyrophosphorylase during early fruit development inthe darkinconjunction withreduced starch levels andratesofaccumulation indicates that ADPglucose pyrophosphorylase iscrucial forcarbonimport andstorage intomato. Thedifferential stimulation ofADPglucose pyrophosphorylase activity fromlightanddark-grown tissue by3-phosphoglycerate suggests that this enzymemaybeallostencally altered bylight.
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Claims 11
Claim · model-written summary
Sucrose levels were low and continued to decline during tomato fruit development and were unaffected by light.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- lighte1
- Outcome
- Sucrose levelse1
- Direction
- unaffectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Sucrose levels werelowandcontinued todecline during development and wereunaffected bylight”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
Starch was significantly greater in light-grown tomato fruit.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- lighte2
- Outcome
- Starche2
- Direction
- greatere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Starch wassignificantly greater inlight”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
Invertase activity was similar in light- and dark-grown tomato fruit.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- lighte3
- Outcome
- Invertase activitye3
- Direction
- similare3
- Comparator
- dark-grown fruite3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Invertase activity wassimilar inbothlight- anddark-grown fruit”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
Sucrose synthase activity was much lower than invertase activity in tomato fruit.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- Sucrose synthase activitye4
- Direction
- lowere4
- Comparator
- invertasee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Sucrose synthase activity wasmuchlower thaninvertase and showedaslight decrease inlight-grown fruit between days21 and28”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
Sucrose synthase activity showed a slight decrease in light-grown tomato fruit between days 21 and 28.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- lighte4
- Outcome
- Sucrose synthase activitye4
- Direction
- decreasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Sucrose synthase activity wasmuchlower thaninvertase and showedaslight decrease inlight-grown fruit between days21 and28”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
Light-grown tomato fruit had higher ADP glucose pyrophosphorylase activity than dark-grown fruit.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- lighte6
- Gene
- ADPglucose pyrophosphorylasee6
- Outcome
- ADPglucose pyrophosphorylase activitye6
- Direction
- highere6
- Comparator
- dark-grown fruite6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Light-grown fruit alsohadhigher ADPglucose pyrophosphorylase activity thandark-grown fruit, whichwascorrelated withhigher starch levels”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
ADP glucose pyrophosphorylase activity was correlated with higher starch levels in tomato fruit.
- Taxon
- TomatoSolanum lycopersicumt0
- Gene
- ADPglucose pyrophosphorylasee6
- Outcome
- starch levelse6
- Direction
- highere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Light-grown fruit alsohadhigher ADPglucose pyrophosphorylase activity thandark-grown fruit, whichwascorrelated withhigher starch levels”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
ADP glucose pyrophosphorylase activity decreased rapidly during early tomato fruit development in the dark.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- early fruit developmente7
- Treatment
- darke7
- Gene
- ADP glucose pyrophosphorylasee7
- Outcome
- activitye7
- Direction
- decreasinge7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Therapidly decreasing activity ofADP glucose pyrophosphorylase during early fruit development inthe darkinconjunction withreduced starch levels andratesofaccumulation”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
ADP glucose pyrophosphorylase appears crucial for carbon import and storage in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Gene
- ADPglucose pyrophosphorylasee0
- Outcome
- carbon import and storagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indicates that ADPglucose pyrophosphorylase iscrucial forcarbonimport andstorage intomato”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
Light may alter ADP glucose pyrophosphorylase allosterically in tomato fruit.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- allostencally alterede5
- Qualifier
- bylighte5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“suggests that this enzymemaybeallostencally altered bylight”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
Claim · model-written summary
3-Phosphoglycerate differentially stimulated ADP glucose pyrophosphorylase activity from light- and dark-grown tomato tissue.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 3-phosphoglyceratee6
- Outcome
- stimulation of ADPglucose pyrophosphorylase activitye6
- Comparator
- dark-grown tissuee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Thedifferential stimulation ofADPglucose pyrophosphorylase activity fromlightanddark-grown tissue by3-phosphoglycerate”
t0“Light Regulation ofSinkMetabolism inTomatoFruit1 II.Carbohydrate Metabolizing Enzymes”
The same questions in other papers
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See all 71 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.