Abstract
Ethanol concentrations that were induced in pericarp discs of mature-green tomato fruit (Lycopersicon esculentum Mill, cv Castlemart) either by anaerobic metabolism or by exposure to ethanol vapor inhibited ripening without increasing the rate of ion leakage. Inhibition of ripening (i.e. lycopene synthesis) of excised tomato pericarp tissue by ethanol vapor was reversed by increasing concentrations of the plant hormone ethylene. A Lineweaver-Burk plot indicated noncompetitive interaction between ethanol and ethylene. Methanol and n-propanol also inhibited lycopene synthesis without significantly increasing ion leakage. The similar inhibitory effects of methanol, ethanol, and n-propanol at concentrations which did not stimulate ion leakage, and the relationship between activity and lipophilia of the alcohols suggest that their mode of action was through disruption of membranes associated with ethylene action.
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Claims 10
Claim · model-written summary
Ethanol from anaerobic metabolism inhibited ripening without increasing ion leakage.
- Taxon
- tomato
Solanum lycopersicume0 - Material
- Castlemarte0
- Organ / stage
- pericarp discs of mature-green tomato fruite0
- Treatment
- anaerobic metabolisme0
- Outcome
- ripeninge0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethanol concentrations that were induced in pericarp discs of mature-green tomato fruit (Lycopersicon esculentum Mill, cv Castlemart) either by anaerobic metabolism or by exposure to ethanol vapor inhibited ripening without increasing the rate of ion leakage”
Claim · model-written summary
Ethanol vapor inhibited ripening without increasing ion leakage.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Castlemarte0
- Organ / stage
- pericarp discs of mature-green tomato fruite0
- Treatment
- exposure to ethanol vapore0
- Outcome
- ripeninge0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethanol concentrations that were induced in pericarp discs of mature-green tomato fruit (Lycopersicon esculentum Mill, cv Castlemart) either by anaerobic metabolism or by exposure to ethanol vapor inhibited ripening without increasing the rate of ion leakage”
Claim · model-written summary
Ethanol did not increase ion leakage.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Ethanole0
- Outcome
- rate of ion leakagee0
- Direction
- without increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethanol concentrations that were induced in pericarp discs of mature-green tomato fruit (Lycopersicon esculentum Mill, cv Castlemart) either by anaerobic metabolism or by exposure to ethanol vapor inhibited ripening without increasing the rate of ion leakage”
Claim · model-written summary
Increasing ethylene reversed ethanol inhibition of lycopene synthesis.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- pericarp tissuee0
- Treatment
- increasing concentrations of the plant hormone ethylenee0
- Outcome
- lycopene synthesise0
- Direction
- reversede0
- Comparator
- ethanol vapore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inhibition of ripening (i.e. lycopene synthesis) of excised tomato pericarp tissue by ethanol vapor was reversed by increasing concentrations of the plant hormone ethylene”
Claim · model-written summary
Ethanol and ethylene had a noncompetitive interaction by Lineweaver-Burk analysis.
- Taxon
- tomatoSolanum lycopersicumt0
- Compound
- ethylenee0
- Outcome
- noncompetitive interaction between ethanol and ethylenee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A Lineweaver-Burk plot indicated noncompetitive interaction between ethanol and ethylene”
t0“Tomato Fruit”
Claim · model-written summary
Methanol inhibited lycopene synthesis without significantly increasing ion leakage.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Methanole0
- Outcome
- lycopene synthesise0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methanol and n-propanol also inhibited lycopene synthesis without significantly increasing ion leakage”
t0“Tomato Fruit”
Claim · model-written summary
n-propanol inhibited lycopene synthesis without significantly increasing ion leakage.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- n-propanole0
- Outcome
- lycopene synthesise0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methanol and n-propanol also inhibited lycopene synthesis without significantly increasing ion leakage”
t0“Tomato Fruit”
Claim · model-written summary
Methanol did not significantly increase ion leakage.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Methanole0
- Outcome
- ion leakagee0
- Direction
- without significantly increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methanol and n-propanol also inhibited lycopene synthesis without significantly increasing ion leakage”
t0“Tomato Fruit”
Claim · model-written summary
n-propanol did not significantly increase ion leakage.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- n-propanole0
- Outcome
- ion leakagee0
- Direction
- without significantly increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Methanol and n-propanol also inhibited lycopene synthesis without significantly increasing ion leakage”
t0“Tomato Fruit”
Claim · model-written summary
Authors suggest alcohols inhibit ripening through disruption of membranes associated with ethylene action.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- mode of actione0
- Qualifier
- disruption of membranes associated with ethylene actione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“their mode of action was through disruption of membranes associated with ethylene action”
t0“Tomato Fruit”
The same questions in other papers
ethanol · quality: postharvest · Solanum lycopersicum (tomato)Results differ
2 papers in the same direction as this paper · 8 in the opposite direction
- positive
- negative
- positive
7 papers more in this group
See all 11 papers →ethene · quality: phytochemicals · Solanum lycopersicum (tomato)Results differ
8 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
7 papers more in this group
See all 11 papers →plant hormone · quality: phytochemicals · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- positive
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.