Abstract
Membranes from etiolated hypocotyls of soybean (Glycine max [L] Merr.) were loaded with 45Ca in the presence of the ionophore A23187. Upon subsequent treatment with 2,4 dichlorophenoxyacetic acid or indole-3-acetic acid, calcium was released A weak or inactive auxin analogue (2,3-D) did not promote release from the hypocotyl membranes, nor did red blood cells treated with either auxin release calcium The concentration dependency of auxin-promoted calcium release paralleled that of auxin-induced growth and was biphasic with an optimum at 1 μM Membrane vesicles from mung bean hypocotyls and pea epicotyls also released calcium in response to auxin. The similar concentration dependency of auxin-induced growth and of calcium release, and the fact that most of the in vitro responses of plant plasma membranes to auxin are duplicated by appropriate modulation of membrane calcium, suggest a role of calcium ions in the responses of plant membranes to auxins.
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Claims 7
Claim · model-written summary
2,4 dichlorophenoxyacetic acid released calcium from soybean hypocotyl membranes.
- Taxon
- soybean
Glycine maxe1 - Organ / stage
- hypocotylse1
- Treatment
- 2,4 dichlorophenoxyacetic acide0
- Outcome
- calcium was releasede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Upon subsequent treatment with 2,4 dichlorophenoxyacetic acid or indole-3-acetic acid, calcium was released”
e1“Membranes from etiolated hypocotyls of soybean (Glycine max [L] Merr.)”
Claim · model-written summary
Indole-3-acetic acid released calcium from soybean hypocotyl membranes.
- Taxon
- soybeanGlycine maxe1
- Treatment
- indole-3-acetic acide0
- Outcome
- calcium was releasede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Upon subsequent treatment with 2,4 dichlorophenoxyacetic acid or indole-3-acetic acid, calcium was released”
e1“Membranes from etiolated hypocotyls of soybean (Glycine max [L] Merr.)”
Claim · model-written summary
The weak auxin analogue 2,3-D did not promote calcium release.
- Taxon
- soybeanGlycine maxe1
- Treatment
- 2,3-De0
- Outcome
- release from the hypocotyl membranese0
- Direction
- did not promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A weak or inactive auxin analogue (2,3-D) did not promote release from the hypocotyl membranes”
e1“Membranes from etiolated hypocotyls of soybean (Glycine max [L] Merr.)”
Claim · model-written summary
Auxin-promoted calcium release followed a biphasic concentration response with a 1 μM optimum.
- Taxon
- soybeanGlycine maxe1
- Treatment
- auxine0
- Outcome
- calcium releasee0
- Direction
- optimume0
- Value
- 1 μMe0
- Qualifier
- biphasice0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration dependency of auxin-promoted calcium release paralleled that of auxin-induced growth and was biphasic with an optimum at 1 μM”
e1“Membranes from etiolated hypocotyls of soybean (Glycine max [L] Merr.)”
Claim · model-written summary
Auxin-promoted calcium release paralleled auxin-induced growth.
- Taxon
- soybeanGlycine maxe1
- Treatment
- auxine0
- Outcome
- calcium releasee0
- Qualifier
- paralleled that of auxin-induced growthe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration dependency of auxin-promoted calcium release paralleled that of auxin-induced growth”
e1“Membranes from etiolated hypocotyls of soybean (Glycine max [L] Merr.)”
Claim · model-written summary
Mung bean hypocotyl vesicles released calcium in response to auxin.
- Taxon
- mung bean
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Vigna radiatae0 - Organ / stage
- hypocotylse0
- Treatment
- auxine0
- Outcome
- released calciume0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Membrane vesicles from mung bean hypocotyls and pea epicotyls also released calcium in response to auxin.”
Claim · model-written summary
Pea epicotyl vesicles released calcium in response to auxin.
- Taxon
- pea
Lathyrus oleraceuse0 - Organ / stage
- epicotylse0
- Treatment
- auxine0
- Outcome
- released calciume0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Membrane vesicles from mung bean hypocotyls and pea epicotyls also released calcium in response to auxin.”
The same questions in other papers
indole-3-acetic acid · nutrient: content · Glycine max (soybean)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →class · nutrient: content · Lathyrus oleraceus (pea)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
class · nutrient: content · Vigna radiata (mung bean)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.