Abstract
The role of abscisic acid and ethylene in the senescence of rose petals cv. Golden-Wave was examined. A rise in ethylene evolution, followed by an increase in the level of abscisic acid was observed. The presence of abscisic acid in rose petals was established, using different chromatography systems, several bioassays, and immunoassay. External application of ethylene accelerated senescence and induced a rise in endogenous abscisic acid-like activity. Application of abscisic acid promoted senescence, but suppressed ethylene production. The data suggest that the participation of these two hormones in the control of senescence is via the same pathway. The possibility of interrelationship between abscisic acid and ethylene was tested and experimental evidence in favor of this hypothesis is presented. It was suggested that ethylene affects senescence in rose petals by inducing an increase in abscisic acid activity, which in turn may control ethylene evolution, via a feedback mechanism.
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Claims 9
Claim · model-written summary
Ethylene evolution rose before abscisic acid level rose.
Verbatim
e0“A rise in ethylene evolution, followed by an increase in the level of abscisic acid was observed”
e1“rose petals cv. Golden-Wave”
Claim · model-written summary
Abscisic acid level increased after ethylene evolution rose.
Verbatim
e0“A rise in ethylene evolution, followed by an increase in the level of abscisic acid was observed”
e1“rose petals cv. Golden-Wave”
Claim · model-written summary
Abscisic acid was detected in rose petals by multiple assays.
Verbatim
e0“presence of abscisic acid in rose petals was established, using different chromatography systems, several bioassays, and immunoassay”
Claim · model-written summary
Externally applied ethylene accelerated rose petal senescence.
Not reportedComparator
Verbatim
e0“External application of ethylene accelerated senescence”
e1“rose petals cv. Golden-Wave”
Claim · model-written summary
Externally applied ethylene raised endogenous abscisic acid-like activity.
- Taxon
- rosee1
- Treatment
- External application of ethylenee0
- Outcome
- endogenous abscisic acid-like activitye0
- Direction
- risee0
Not reportedComparator
Verbatim
e0“External application of ethylene accelerated senescence and induced a rise in endogenous abscisic acid-like activity”
e1“rose petals cv. Golden-Wave”
Claim · model-written summary
Applied abscisic acid promoted senescence.
Not reportedComparator
Verbatim
e0“Application of abscisic acid promoted senescence”
e1“rose petals cv. Golden-Wave”
Claim · model-written summary
Applied abscisic acid suppressed ethylene production.
Not reportedComparator
Verbatim
e0“Application of abscisic acid promoted senescence, but suppressed ethylene production”
e1“rose petals cv. Golden-Wave”
Claim · model-written summary
The authors suggest ethylene and abscisic acid participate in senescence control via the same pathway.
Verbatim
e0“participation of these two hormones in the control of senescence is via the same pathway”
e1“The role of abscisic acid and ethylene in the senescence”
e2“rose petals cv. Golden-Wave”
Claim · model-written summary
The authors suggest ethylene promotes senescence by increasing abscisic acid activity, which may feed back on ethylene evolution.
Verbatim
e0“ethylene affects senescence in rose petals by inducing an increase in abscisic acid activity, which in turn may control ethylene evolution, via a feedback mechanism”
The same questions in other papers
ethene · quality: postharvest · RosaResults differ
7 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
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5 papers more in this group
See all 9 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.