Abstract
When applied to a part of stem or basal part of stem and root system, 1 ppm ethylene induced lysigenous aerenchyma development in the stem cortex of Helianthus annuus, Lycopersicon esculentum , and Phaseolus vulgaris. Local application of ethylene to a part of stem significantly increased the activity of cellulase in that part of stem in the above three species. Pretreatment of a part of stem with 100 ppm AgNO 3 counteracted the effects of ethylene which was subsequently applied to the part of stem, completely suppressing aerenchyma development and highly significantly reducing cellulase activity in Helianthus annuus. These results support the earlier proposal that the deficiency of oxygen in waterlogged plants triggers the anaerobic stimulation of ethylene production, which in turn increases the cellulase activity leading to aerenchyma development.
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Claims 8
Claim · model-written summary
Ethylene induced lysigenous stem-cortex aerenchyma in Helianthus annuus.
- Taxon
- Helianthus annuus
Helianthus annuuse0 - Organ / stage
- stem cortexe0
- Treatment
- 1 ppm ethylenee0
- Outcome
- lysigenous aerenchyma developmente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1 ppm ethylene induced lysigenous aerenchyma development in the stem cortex of Helianthus annuus, Lycopersicon esculentum , and Phaseolus vulgaris”
Claim · model-written summary
Ethylene induced lysigenous stem-cortex aerenchyma in Lycopersicon esculentum.
- Taxon
- Lycopersicon esculentum
Solanum lycopersicume0 - Organ / stage
- stem cortexe0
- Treatment
- 1 ppm ethylenee0
- Outcome
- lysigenous aerenchyma developmente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1 ppm ethylene induced lysigenous aerenchyma development in the stem cortex of Helianthus annuus, Lycopersicon esculentum , and Phaseolus vulgaris”
Claim · model-written summary
Ethylene induced lysigenous stem-cortex aerenchyma in Phaseolus vulgaris.
- Taxon
- Phaseolus vulgaris
Phaseolus vulgarise0 - Organ / stage
- stem cortexe0
- Treatment
- 1 ppm ethylenee0
- Outcome
- lysigenous aerenchyma developmente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1 ppm ethylene induced lysigenous aerenchyma development in the stem cortex of Helianthus annuus, Lycopersicon esculentum , and Phaseolus vulgaris”
Claim · model-written summary
Local ethylene application significantly increased stem cellulase activity in Helianthus annuus.
- Taxon
- Helianthus annuusHelianthus annuuse1
- Organ / stage
- steme0
- Treatment
- Local application of ethylenee0
- Gene
- cellulasee0
- Outcome
- activity of cellulasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Local application of ethylene to a part of stem significantly increased the activity of cellulase in that part of stem in the above three species.”
e1“Helianthus annuus, Lycopersicon esculentum , and Phaseolus vulgaris”
Claim · model-written summary
Local ethylene application significantly increased stem cellulase activity in Lycopersicon esculentum.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Organ / stage
- steme0
- Treatment
- Local application of ethylenee0
- Gene
- cellulasee0
- Outcome
- activity of cellulasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Local application of ethylene to a part of stem significantly increased the activity of cellulase in that part of stem in the above three species.”
e1“Helianthus annuus, Lycopersicon esculentum , and Phaseolus vulgaris”
Claim · model-written summary
Local ethylene application significantly increased stem cellulase activity in Phaseolus vulgaris.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarise1
- Organ / stage
- steme0
- Treatment
- Local application of ethylenee0
- Gene
- cellulasee0
- Outcome
- activity of cellulasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Local application of ethylene to a part of stem significantly increased the activity of cellulase in that part of stem in the above three species.”
e1“Helianthus annuus, Lycopersicon esculentum , and Phaseolus vulgaris”
Claim · model-written summary
Silver nitrate pretreatment completely suppressed ethylene-induced aerenchyma development in Helianthus annuus.
- Taxon
- Helianthus annuusHelianthus annuuse0
- Organ / stage
- steme0
- Treatment
- 100 ppm AgNO 3e0
- Outcome
- aerenchyma developmente0
- Comparator
- ethylene which was subsequently appliede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretreatment of a part of stem with 100 ppm AgNO 3 counteracted the effects of ethylene which was subsequently applied to the part of stem, completely suppressing aerenchyma development and highly significantly reducing cellulase activity in Helianthus annuus.”
Claim · model-written summary
Silver nitrate pretreatment highly significantly reduced ethylene-induced cellulase activity in Helianthus annuus.
- Taxon
- Helianthus annuusHelianthus annuuse0
- Treatment
- 100 ppm AgNO 3e0
- Gene
- cellulasee0
- Outcome
- cellulase activitye0
- Direction
- reducinge0
- Comparator
- ethylene which was subsequently appliede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretreatment of a part of stem with 100 ppm AgNO 3 counteracted the effects of ethylene which was subsequently applied to the part of stem, completely suppressing aerenchyma development and highly significantly reducing cellulase activity in Helianthus annuus.”
The same questions in other papers
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- negative
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See all 22 papers →ethene · growth · Phaseolus vulgaris (common bean)Positive and negative results
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- negative
- positive
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See all 5 papers →silver(1+) nitrate · growth · Helianthus annuus (common sunflower)Results agree
1 paper in the same direction as this paper
- negative
silver(1+) nitrate · physiology: enzyme activity · Helianthus annuus (common sunflower)Results agree
1 paper in the same direction as this paper
- negative
ethene · growth · Helianthus annuus (common sunflower)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
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See all 7 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.