Abstract
The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness. Movement of the promoters from an illuminated donor portion to a darkened receptor portion was demonstrated. The majority of transport was acropetal through the phloem and to a much lesser degree basipetal through the xylem. In the early stages of hardening, transport was strictly acropetal. It is suggested that acropetal transport is under the influence of a mobilizing center located in the apex of the plant. Mobilization of the promoters of hardiness was induced by applications of (6)N-benzyladenine. Attempts to characterize the light-generated promoters through fixation of (14)CO(2) and subsequent translocation of (14)C-labeled compounds from the illuminated donor to the darkened receptor indicated that the translocatable promoting material was either some component of the Dowex 1 fraction or sucrose. Furthermore, the hardiness of leaves was significantly increased by sucrose solutions but not by equi-molar solutions of glucose, galactose or mannitol.
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Claims 10
Claim · model-written summary
Light stimulation of cold acclimation in Hedera helix var. Thorndale resulted in production of translocatable promoters of hardiness.
- Taxon
- Hedera helix
Hedera helixe0 - Material
- Thorndalee0
- Treatment
- light stimulatione0
- Outcome
- production of translocatable promoters of hardinesse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
Claim · model-written summary
Promoters of hardiness moved from an illuminated donor portion to a darkened receptor portion.
- Taxon
- Hedera helixHedera helixe0
- Outcome
- Movement of the promoterse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
e1“Movement of the promoters from an illuminated donor portion to a darkened receptor portion was demonstrated”
Claim · model-written summary
Most transport of the promoters was acropetal, through the phloem.
- Taxon
- Hedera helixHedera helixe0
- Outcome
- transporte1
- Qualifier
- acropetal through the phloeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
e1“The majority of transport was acropetal through the phloem and to a much lesser degree basipetal through the xylem”
Claim · model-written summary
Transport of the promoters was basipetal through the xylem to a much lesser degree.
- Taxon
- Hedera helixHedera helixe0
- Outcome
- transporte1
- Qualifier
- basipetal through the xyleme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
e1“The majority of transport was acropetal through the phloem and to a much lesser degree basipetal through the xylem”
Claim · model-written summary
In the early stages of hardening, transport was strictly acropetal.
- Taxon
- Hedera helixHedera helixe0
- Organ / stage
- early stages of hardeninge1
- Outcome
- transporte1
- Qualifier
- strictly acropetale1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
e1“In the early stages of hardening, transport was strictly acropetal”
Claim · model-written summary
The authors suggest that acropetal transport is influenced by a mobilizing center located in the plant apex.
- Taxon
- Hedera helixHedera helixe0
- Outcome
- acropetal transporte1
- Qualifier
- mobilizing center located in the apex of the plante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
e1“acropetal transport is under the influence of a mobilizing center located in the apex of the plant”
Claim · model-written summary
Applications of (6)N-benzyladenine induced mobilization of the promoters of hardiness.
- Taxon
- Hedera helixHedera helixe0
- Treatment
- applications of (6)N-benzyladeninee1
- Outcome
- Mobilization of the promoters of hardinesse1
- Direction
- inducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
e1“Mobilization of the promoters of hardiness was induced by applications of (6)N-benzyladenine”
Claim · model-written summary
The translocatable promoting material was either some component of the Dowex 1 fraction or sucrose.
- Taxon
- Hedera helixHedera helixe0
- Outcome
- translocatable promoting materiale1
- Qualifier
- some component of the Dowex 1 fraction or sucrosee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
e1“the translocatable promoting material was either some component of the Dowex 1 fraction or sucrose”
Claim · model-written summary
Sucrose solutions significantly increased the hardiness of leaves.
- Taxon
- Hedera helixHedera helixe0
- Treatment
- sucrose solutionse1
- Outcome
- hardiness of leavese1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
e1“the hardiness of leaves was significantly increased by sucrose solutions but not by equi-molar solutions of glucose, galactose or mannitol”
Claim · model-written summary
Equi-molar solutions of glucose, galactose or mannitol did not increase the hardiness of leaves.
- Taxon
- Hedera helixHedera helixe0
- Treatment
- equi-molar solutions of glucose, galactose or mannitole1
- Outcome
- hardiness of leavese1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The light stimulation of cold acclimation of Hedera helix L. var. Thorndale has been shown to result in the production of translocatable promoters of hardiness”
e1“the hardiness of leaves was significantly increased by sucrose solutions but not by equi-molar solutions of glucose, galactose or mannitol”
The same questions in other papers
light · tolerance: abiotic · Hedera helix (English ivy)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
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.