Abstract
SUMMARY Epinastic growth by petioles of tomato ( Lycopersicon esculentum Mill., cv. Moneymaker) is stimulated by waterlogging the soil and the responding leaves and other shoot parts contain higher concentrations of ethylene than those of non‐waterlogged plants. Waterlogged soil also contains increased amounts of ethylene in solution and the possibility that ethylene from this source can move to the shoots of waterlogged plants has been tested by applying the gas to the roots of plants growing in water culture. When concentrations of 2 ppm and above are supplied in this way, petiole epinasty develops in association with increases in ethylene extracted from the responding petioles. When 100 ppm is applied to the roots, increases in ethylene in the petioles precede the development of epinastic growth. Use of [ 14 C] labelled ethylene indicates that the gas can move rapidly, unchanged from roots to shoots. The movement of ethylene and epinastic growth are both reduced if plants are previously steam‐girdled near the base of the stem, suggesting that much ethylene moves by a route other than the transpiration stream. Ethylene supplied to the roots is shown to promote adventitious rooting and downward rolling of the young leaf laminae and to modify the orientation of shoot growth in the tomato mutant‘diageotropica’. It is proposed that increases in soil ethylene and movement of the gas to the shoot system are factors contributing to the development of epinasty and other responses of the shoots to waterlogging the soil.
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Claims 12
Claim · model-written summary
Waterlogging stimulated tomato petiole epinasty.
- Taxon
- tomato
Solanum lycopersicume0 - Material
- Moneymakere0
- Organ / stage
- petiolese0
- Treatment
- waterlogging the soile0
- Outcome
- Epinastic growthe0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Epinastic growth by petioles of tomato ( Lycopersicon esculentum Mill., cv. Moneymaker) is stimulated by waterlogging the soil”
Claim · model-written summary
Waterlogged tomato shoots contained more ethylene than non-waterlogged shoots.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- leaves and other shoot partse0
- Treatment
- waterlogginge1
- Outcome
- concentrations of ethylenee0
- Direction
- highere0
- Comparator
- non‐waterlogged plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the responding leaves and other shoot parts contain higher concentrations of ethylene than those of non‐waterlogged plants”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
e1“is stimulated by waterlogging the soil”
Claim · model-written summary
Waterlogged soil contained increased dissolved ethylene.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Waterlogged soile0
- Outcome
- ethylene in solutione0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Waterlogged soil also contains increased amounts of ethylene in solution”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
Claim · model-written summary
Root-supplied ethylene at 2 ppm or more induced petiole epinasty.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- concentrations of 2 ppm and abovee0
- Outcome
- petiole epinasty developse0
- Value
- 2 ppm and abovee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When concentrations of 2 ppm and above are supplied in this way, petiole epinasty develops in association with increases in ethylene extracted from the responding petioles”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
Claim · model-written summary
Root-supplied ethylene increased ethylene extracted from petioles.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- concentrations of 2 ppm and abovee0
- Outcome
- ethylene extracted from the responding petiolese0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When concentrations of 2 ppm and above are supplied in this way, petiole epinasty develops in association with increases in ethylene extracted from the responding petioles”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
Claim · model-written summary
At 100 ppm root ethylene, petiole ethylene rose before epinasty developed.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 100 ppme0
- Outcome
- ethylene in the petiolese0
- Direction
- increasese0
- Qualifier
- precede the development of epinastic growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When 100 ppm is applied to the roots, increases in ethylene in the petioles precede the development of epinastic growth”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
Claim · model-written summary
Labelled ethylene moved rapidly and unchanged from tomato roots to shoots.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- move rapidly, unchanged from roots to shootse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Use of [ 14 C] labelled ethylene indicates that the gas can move rapidly, unchanged from roots to shoots”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
Claim · model-written summary
Stem steam-girdling reduced ethylene movement.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- steam‐girdled near the base of the steme0
- Outcome
- movement of ethylenee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The movement of ethylene and epinastic growth are both reduced if plants are previously steam‐girdled near the base of the stem”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
Claim · model-written summary
Stem steam-girdling reduced epinastic growth.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- steam‐girdled near the base of the steme0
- Outcome
- epinastic growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The movement of ethylene and epinastic growth are both reduced if plants are previously steam‐girdled near the base of the stem”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
Claim · model-written summary
Root-supplied ethylene promoted adventitious rooting and downward rolling of young leaves.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ethylene supplied to the rootse0
- Outcome
- adventitious rooting and downward rolling of the young leaf laminaee0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene supplied to the roots is shown to promote adventitious rooting and downward rolling of the young leaf laminae”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
Claim · model-written summary
Root-supplied ethylene modified shoot-growth orientation in diageotropica tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- diageotropicae0
- Treatment
- Ethylene supplied to the rootse1
- Outcome
- orientation of shoot growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to modify the orientation of shoot growth in the tomato mutant‘diageotropica’”
t0“MOVEMENT OF ETHYLENE FROM ROOTS TO SHOOTS, A FACTOR IN THE RESPONSES OF TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
e1“Ethylene supplied to the roots”
Claim · model-written summary
The authors propose soil ethylene accumulation and transport to shoots as contributors to waterlogging responses.
- Taxon
- TOMATOSolanum lycopersicumt0
- Outcome
- development of epinasty and other responses of the shootse0
- Qualifier
- increases in soil ethylene and movement of the gas to the shoot systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is proposed that increases in soil ethylene and movement of the gas to the shoot system are factors contributing to the development of epinasty and other responses of the shoots to waterlogging the soil”
t0“TOMATO PLANTS TO WATERLOGGED SOIL CONDITIONS”
The same questions in other papers
flooding · growth · Solanum lycopersicum (tomato)Results differ
17 papers in the same direction as this paper · 4 in the opposite direction
- negative
- positive
- positive
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.