Abstract
It is demonstrated that, in etiolated pea (Pisum sativum) epicotyls, ethylene affects the activation of both monomeric GTP-binding proteins (monomeric G-proteins) and protein kinases. For monomeric G-proteins, the effect may be a rapid (2 min) and bimodal up-regulation, a transiently unimodal activation, or a transient down-regulation. Pretreatment with 1-methylcyclopropene abolishes the response to ethylene overall. Immunoprecipitation studies indicate that some of the monomeric G-proteins affected may be of the Rab class. Protein kinase activity is rapidly up-regulated by ethylene, the effect is inhibited by 1-methylcyclopropene, and the activation is bimodal. Immunoprecipitation indicates that the kinase(s) are of the MAP kinase ERK1 group. It is proposed that the data support the hypothesis that a transduction chain exists that is separate and antagonistic to that currently revealed by studies on Arabidopsis mutants.
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Claims 7
Claim · model-written summary
Ethylene caused rapid bimodal up-regulation, transient unimodal activation or transient down-regulation of monomeric G-proteins in pea epicotyls.
- Taxon
- pea
Lathyrus oleraceuse0 - Organ / stage
- epicotylse0
- Treatment
- ethylenee0
- Gene
- monomeric G-proteinse0
- Outcome
- activatione0
- Qualifier
- rapid (2 min)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in etiolated pea (Pisum sativum) epicotyls, ethylene affects the activation of both monomeric GTP-binding proteins (monomeric G-proteins) and protein kinases. For monomeric G-proteins, the effect may be a rapid (2 min) and bimodal up-regulation, a transiently unimodal activation, or a transient down-regulation.”
Claim · model-written summary
Pretreatment with 1-methylcyclopropene abolished the monomeric G-protein response to ethylene.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- 1-methylcyclopropenee0
- Outcome
- response to ethylenee0
- Direction
- abolishese0
- Comparator
- ethylenee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea”
e0“Pretreatment with 1-methylcyclopropene abolishes the response to ethylene overall.”
Claim · model-written summary
Immunoprecipitation suggested some affected monomeric G-proteins belong to the Rab class.
- Taxon
- PeaLathyrus oleraceust0
- Gene
- Rabe0
- Outcome
- some of the monomeric G-proteins affected may be of the Rab classe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea”
e0“Immunoprecipitation studies indicate that some of the monomeric G-proteins affected may be of the Rab class.”
Claim · model-written summary
Ethylene rapidly up-regulated protein kinase activity in pea epicotyls in a bimodal pattern.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- ethylenee0
- Gene
- Protein kinasee0
- Outcome
- Protein kinase activitye0
- Direction
- up-regulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea”
e0“Protein kinase activity is rapidly up-regulated by ethylene, the effect is inhibited by 1-methylcyclopropene, and the activation is bimodal.”
Claim · model-written summary
1-methylcyclopropene inhibited the ethylene effect on pea protein kinase activity.
- Taxon
- PeaLathyrus oleraceust0
- Treatment
- 1-methylcyclopropenee0
- Gene
- Protein kinasee0
- Outcome
- Protein kinase activitye0
- Direction
- inhibitede0
- Comparator
- ethylenee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea”
e0“Protein kinase activity is rapidly up-regulated by ethylene, the effect is inhibited by 1-methylcyclopropene, and the activation is bimodal.”
Claim · model-written summary
Immunoprecipitation indicated the responsive kinases are in the MAP kinase ERK1 group.
- Taxon
- PeaLathyrus oleraceust0
- Gene
- MAP kinase ERK1e0
- Outcome
- kinase(s) are of the MAP kinase ERK1 groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea”
e0“Immunoprecipitation indicates that the kinase(s) are of the MAP kinase ERK1 group.”
Claim · model-written summary
The authors propose a separate and antagonistic ethylene transduction chain.
- Taxon
- PeaLathyrus oleraceust0
- Outcome
- a transduction chain exists that is separate and antagonistice0
- Qualifier
- hypothesise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Pea”
e0“It is proposed that the data support the hypothesis that a transduction chain exists that is separate and antagonistic to that currently revealed by studies on Arabidopsis mutants.”
The same questions in other papers
ethene · physiology: enzyme activity · Lathyrus oleraceus (pea)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.