Abstract
The translocation and distribution of dry matter were studied in the floral and vegetative parts of the cut carnation during senescence. The change in dry weights of the tissues and the amount of radioactivity recovered from them after feeding with 14C-sucrose were measured. Treatments with ethylene and sucrose were used to alter the rate of senescence of the flowers. Sucrose moved through the stem relatively unchanged but was rapidly inverted and metabolized in the petals. During natural ageing, 14C moved from the stem to the flower and the movement was enhanced by exogenous sucrose, which also reduced the loss of dry matter in the petals and promoted their growth. Treatment with ethylene caused petals to wilt and lose dry weight, and ovaries to enlarge and increase in dry weight. The distribution of radioactivity in flowers fed with 14C-sucrose before and after ethylene treatment supported the observation that dry matter was translocated between the flower parts. The results indicate that a change in the source-ink relationships of the flower parts contributes to the factors that determine the rate of flower senescence.
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Claims 10
Claim · model-written summary
Sucrose moved relatively unchanged through the stem.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)
Dianthus caryophyllust0 - Organ / stage
- steme0
- Outcome
- Sucrose moved through the stem relatively unchangede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sucrose moved through the stem relatively unchanged but was rapidly inverted and metabolized in the petals.”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
Claim · model-written summary
Sucrose was rapidly inverted and metabolized in petals.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)Dianthus caryophyllust0
- Organ / stage
- petalse0
- Outcome
- rapidly inverted and metabolized in the petalse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sucrose moved through the stem relatively unchanged but was rapidly inverted and metabolized in the petals.”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
Claim · model-written summary
During natural ageing, 14C moved from stem to flower.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)Dianthus caryophyllust0
- Organ / stage
- flowere0
- Outcome
- 14C moved from the stem to the flowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During natural ageing, 14C moved from the stem to the flower”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
Claim · model-written summary
Exogenous sucrose enhanced 14C movement from stem to flower.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)Dianthus caryophyllust0
- Treatment
- exogenous sucrosee0
- Outcome
- movemente0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the movement was enhanced by exogenous sucrose”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
Claim · model-written summary
Exogenous sucrose reduced petal dry matter loss.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)Dianthus caryophyllust0
- Treatment
- exogenous sucrosee0
- Outcome
- loss of dry matter in the petalse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous sucrose, which also reduced the loss of dry matter in the petals and promoted their growth.”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
Claim · model-written summary
Exogenous sucrose promoted petal growth.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)Dianthus caryophyllust0
- Treatment
- exogenous sucrosee0
- Outcome
- their growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous sucrose, which also reduced the loss of dry matter in the petals and promoted their growth.”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
Claim · model-written summary
Ethylene caused petals to wilt and lose dry weight.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)Dianthus caryophyllust0
- Treatment
- ethylenee0
- Outcome
- petals to wilt and lose dry weighte0
- Direction
- losee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with ethylene caused petals to wilt and lose dry weight, and ovaries to enlarge and increase in dry weight.”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
Claim · model-written summary
Ethylene caused ovaries to enlarge and gain dry weight.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)Dianthus caryophyllust0
- Treatment
- ethylenee0
- Outcome
- ovaries to enlarge and increase in dry weighte0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with ethylene caused petals to wilt and lose dry weight, and ovaries to enlarge and increase in dry weight.”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
Claim · model-written summary
Radioactivity distribution supported translocation of dry matter among flower parts.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)Dianthus caryophyllust0
- Outcome
- dry matter was translocated between the flower partse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The distribution of radioactivity in flowers fed with 14C-sucrose before and after ethylene treatment supported the observation that dry matter was translocated between the flower parts.”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
Claim · model-written summary
Changed source relationships contribute to the rate of flower senescence.
- Taxon
- Glasshouse Carnation (Dianthus caryophyllus)Dianthus caryophyllust0
- Outcome
- rate of flower senescencee0
- Qualifier
- change in the source-ink relationships of the flower partse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a change in the source-ink relationships of the flower parts contributes to the factors that determine the rate of flower senescence.”
t0“Glasshouse Carnation (Dianthus caryophyllus)”
The same questions in other papers
sucrose · growth · Dianthus caryophyllus (carnation)Positive and negative results
14 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
12 papers more in this group
See all 16 papers →ethene · disease · Dianthus caryophyllus (carnation)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
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.