Abstract
The diageotropica mutant of tomato (Lycopersicon esculentum Mill.) is shown to require exogenous ethylene for normal growth and development. This single gene mutant is characterized by unsupported horizontal growth of shoots and roots, dark green hyponastic leaf segments, thin rigid stems, and primary and adventitious roots which lack lateral roots. Experiments with growth regulators indicate that the mutant does not produce normal amounts of ethylene in response to auxin treatment. Tests with ethylene-producing compounds or ethylene precursors demonstrate that the mutant requires ethylene for normality. Ethylene concentrations as low as 0.005 microliters per liter are capable of completely normalizing mutant characteristics. This mutant with its isogenic parent variety, cv. VFN8, should be a suitable tool for investigating auxin-stimulated ethylene production and their interrelationship in the control of plant morphology and physiology.
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Claims 5
Claim · model-written summary
Diageotropica tomato requires externally supplied ethylene for normal growth and development.
- Taxon
- tomato
Solanum lycopersicume0 - Material
- diageotropicae0
- Treatment
- exogenous ethylenee0
- Outcome
- normal growth and developmente0
- Direction
- requiree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The diageotropica mutant of tomato (Lycopersicon esculentum Mill.) is shown to require exogenous ethylene for normal growth and development.”
Claim · model-written summary
The diageotropica mutant shows horizontal shoots and roots, hyponastic leaves, rigid stems and roots without laterals.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- single gene mutante0
- Outcome
- unsupported horizontal growth of shoots and roots, dark green hyponastic leaf segments, thin rigid stems, and primary and adventitious roots which lack lateral rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This single gene mutant is characterized by unsupported horizontal growth of shoots and roots, dark green hyponastic leaf segments, thin rigid stems, and primary and adventitious roots which lack lateral roots.”
t0“tomato”
Claim · model-written summary
Auxin treatment does not induce normal ethylene production in the mutant.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- auxin treatmente0
- Outcome
- ethylenee0
- Direction
- does not produce normal amountse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experiments with growth regulators indicate that the mutant does not produce normal amounts of ethylene in response to auxin treatment.”
t0“tomato”
Claim · model-written summary
Ethylene concentrations as low as 0.005 microliters per liter fully normalized mutant traits.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ethylene concentrations as low as 0.005 microliters per litere0
- Outcome
- mutant characteristicse0
- Direction
- completely normalizinge0
- Value
- 0.005 microliters per litere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene concentrations as low as 0.005 microliters per liter are capable of completely normalizing mutant characteristics.”
t0“tomato”
Claim · model-written summary
The mutant and its isogenic parent VFN8 were proposed as tools for studying auxin-stimulated ethylene production and morphology.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- cv. VFN8e0
- Outcome
- suitable tool for investigating auxin-stimulated ethylene productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This mutant with its isogenic parent variety, cv. VFN8, should be a suitable tool for investigating auxin-stimulated ethylene production and their interrelationship in the control of plant morphology and physiology.”
t0“Tomato”
The same questions in other papers
ethene · growth · Solanum lycopersicum (tomato)Results differ
9 papers in the same direction as this paper · 12 in the opposite direction
- no effect
- negative
- negative
18 papers more in this group
See all 22 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.