Abstract
Apical segments of etiolated oat (Avena sativa L. cv. Victory) coleoptiles showed enhanced uptake of [(86)Rb(+)] when tested 30 minutes after a 5-minute red irradiation. The response was partly reversible by far red light. Uptake was sensitive to carbonyl cyanide m-chlorophenyl hydrazone, but not to isotonic mannitol. Indoleacetic acid (10(-7) molar) caused a very pronounced and rapid stimulation of uptake. Basal coleoptile segments also exhibited a red light-enhanced uptake, but not an effect of red light on changes in the pH of the medium. The [(86)Rb(+)] uptake of third internode segments from etiolated peas (Pisum sativum L. cv. Alaska) was not affected by either red light or auxin. This tissue also showed no red light effect on acidification of the medium. It is concluded that alteration of [(86)Rb(+)] flux is not a general feature of phytochrome action.
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Claims 11
Claim · model-written summary
Red irradiation enhanced rubidium uptake by apical oat coleoptile segments.
- Taxon
- oat
Avena sativae0 - Material
- Avena sativa L. cv. Victorye0
- Organ / stage
- coleoptilese0
- Treatment
- 5-minute red irradiatione0
- Outcome
- uptake of [(86)Rb(+)]e0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apical segments of etiolated oat (Avena sativa L. cv. Victory) coleoptiles showed enhanced uptake of [(86)Rb(+)] when tested 30 minutes after a 5-minute red irradiation.”
Claim · model-written summary
Far red light partly reversed the red light response.
- Taxon
- OatAvena sativat0
- Treatment
- far red lighte0
- Outcome
- responsee0
- Direction
- partly reversiblee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The response was partly reversible by far red light.”
t0“Oat”
Claim · model-written summary
Uptake was sensitive to carbonyl cyanide m-chlorophenyl hydrazone.
- Taxon
- OatAvena sativat0
- Treatment
- carbonyl cyanide m-chlorophenyl hydrazonee0
- Outcome
- Uptakee0
- Direction
- sensitivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uptake was sensitive to carbonyl cyanide m-chlorophenyl hydrazone”
t0“Oat”
Claim · model-written summary
Uptake was not sensitive to isotonic mannitol.
- Taxon
- OatAvena sativat0
- Treatment
- isotonic mannitole0
- Outcome
- not to isotonic mannitole0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but not to isotonic mannitol”
t0“Oat”
Claim · model-written summary
Indoleacetic acid rapidly stimulated uptake.
- Taxon
- OatAvena sativat0
- Treatment
- Indoleacetic acid (10(-7) molar)e0
- Outcome
- uptakee0
- Direction
- stimulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Indoleacetic acid (10(-7) molar) caused a very pronounced and rapid stimulation of uptake.”
t0“Oat”
Claim · model-written summary
Red light enhanced uptake in basal oat coleoptile segments.
- Taxon
- OatAvena sativat0
- Organ / stage
- Basal coleoptile segmentse0
- Treatment
- red lighte0
- Outcome
- uptakee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Basal coleoptile segments also exhibited a red light-enhanced uptake”
t0“Oat”
Claim · model-written summary
Red light had no effect on medium pH changes in basal oat segments.
- Taxon
- OatAvena sativat0
- Treatment
- red lighte0
- Outcome
- changes in the pH of the mediume0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“not an effect of red light on changes in the pH of the medium”
t0“Oat”
Claim · model-written summary
Red light did not affect rubidium uptake in pea internode segments.
- Taxon
- peas
Lathyrus oleraceuse0 - Material
- Pisum sativum L. cv. Alaskae0
- Organ / stage
- third internode segmentse0
- Treatment
- red lighte0
- Outcome
- [(86)Rb(+)] uptakee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The [(86)Rb(+)] uptake of third internode segments from etiolated peas (Pisum sativum L. cv. Alaska) was not affected by either red light or auxin.”
Claim · model-written summary
Auxin did not affect rubidium uptake in pea internode segments.
- Taxon
- peasLathyrus oleraceuse0
- Treatment
- auxine0
- Outcome
- [(86)Rb(+)] uptakee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The [(86)Rb(+)] uptake of third internode segments from etiolated peas (Pisum sativum L. cv. Alaska) was not affected by either red light or auxin.”
Claim · model-written summary
Red light did not affect medium acidification in pea tissue.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- red lighte0
- Outcome
- acidification of the mediume0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This tissue also showed no red light effect on acidification of the medium.”
t0“Pea”
Claim · model-written summary
The authors conclude altered rubidium flux is not a general phytochrome response.
- Taxon
- OatAvena sativat0
- Outcome
- alteration of [(86)Rb(+)] fluxe0
- Qualifier
- phytochrome actione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alteration of [(86)Rb(+)] flux is not a general feature of phytochrome action”
t0“Oat”
The same questions in other papers
indole-3-acetic acid · nutrient: content · Avena sativa (oats)Positive and negative results
1 in the opposite direction
- negative
mannitol · molecular: metabolites · Avena sativa (oats)Results agree
1 paper in the same direction as this paper
- no effect
class · nutrient: content · Lathyrus oleraceus (pea)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
light · nutrient: content · Avena sativa (oats)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
1 paper more in this group
See all 5 papers →light · nutrient: content · Lathyrus oleraceus (pea)Positive and negative results
3 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
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.