Abstract
To examine the cross talk between the abscisic acid (ABA) and ethylene signal transduction pathways, signaling events during ABA-induced stomatal closure were examined in Arabidopsis (Arabidopsis thaliana) wild-type plants, in an ethylene-overproducing mutant (eto1-1), and in two ethylene-insensitive mutants (etr1-1 and ein3-1). Using isolated epidermal peels, stomata of wild-type plants were found to close within a few minutes in response to ABA, whereas stomata of the eto1-1 mutant showed a similar but less sensitive ABA response. In addition, ABA-induced stomatal closure could be inhibited by application of ethylene or the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC). In contrast, stomata of the etr1-1 and ein3-1 mutants were able to close in response to concomitant ABA and ACC application, although to a lesser extent than in wild-type plants. Moreover, expression of the ABA-induced gene RAB18 was reduced following ACC application. These results indicate that ethylene delays stomatal closure by inhibiting the ABA signaling pathway. The same inhibitive effects of ethylene on stomatal closure were observed in ABA-irrigated plants and the plants in drought condition. Furthermore, upon drought stress, the rate of transpiration was greater in eto1-1 and wild-type plants exposed to ethylene than in untreated wild-type control plants, indicating that the inhibitive effects of ethylene on ABA-induced stomatal closure were also observed in planta.
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Claims 9
Claim · model-written summary
Wild-type Arabidopsis stomata closed within minutes after ABA exposure.
- Taxon
- Arabidopsis
Arabidopsise1 - Material
- wild-type plantse0
- Organ / stage
- stomatae0
- Treatment
- ABAe0
- Outcome
- stomata of wild-type plants were found to closee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomata of wild-type plants were found to close within a few minutes in response to ABA”
e1“in Arabidopsis (Arabidopsis thaliana) wild-type plants”
Claim · model-written summary
The eto1-1 mutant had a less sensitive ABA stomatal response than wild type.
- Taxon
- ArabidopsisArabidopsist0
- Material
- eto1-1 mutante0
- Treatment
- ABAe0
- Outcome
- ABA responsee0
- Direction
- less sensitivee0
- Comparator
- wild-type plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomata of the eto1-1 mutant showed a similar but less sensitive ABA response”
e1“stomata of wild-type plants were found to close within a few minutes in response to ABA”
t0“Arabidopsis”
Claim · model-written summary
Applied ethylene inhibited ABA-induced stomatal closure.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- application of ethylenee0
- Outcome
- ABA-induced stomatal closuree0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA-induced stomatal closure could be inhibited by application of ethylene”
t0“Arabidopsis”
Claim · model-written summary
Applied ACC inhibited ABA-induced stomatal closure.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- 1-aminocyclopropane-1-carboxylic acid (ACC)e0
- Outcome
- ABA-induced stomatal closuree0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA-induced stomatal closure could be inhibited by application of ethylene or the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC)”
t0“Arabidopsis”
Claim · model-written summary
Stomata of etr1-1 and ein3-1 mutants closed under concomitant ABA and ACC, less than wild type.
- Taxon
- ArabidopsisArabidopsist0
- Material
- etr1-1 and ein3-1 mutantse0
- Treatment
- concomitant ABA and ACC applicatione0
- Outcome
- stomatae0
- Direction
- lesser extente0
- Comparator
- wild-type plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomata of the etr1-1 and ein3-1 mutants were able to close in response to concomitant ABA and ACC application, although to a lesser extent than in wild-type plants”
t0“Arabidopsis”
Claim · model-written summary
ACC application reduced expression of the ABA-induced RAB18 gene.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- ACC applicatione0
- Gene
- RAB18e0
- Outcome
- expressione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of the ABA-induced gene RAB18 was reduced following ACC application”
t0“Arabidopsis”
Claim · model-written summary
Ethylene delays stomatal closure through inhibition of ABA signaling.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- ethylenee0
- Outcome
- stomatal closuree0
- Qualifier
- inhibiting the ABA signaling pathwaye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ethylene delays stomatal closure by inhibiting the ABA signaling pathway”
t0“Arabidopsis”
Claim · model-written summary
Ethylene also inhibited stomatal closure in ABA-irrigated and drought-stressed plants.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- ethylenee0
- Outcome
- stomatal closuree0
- Direction
- inhibitivee0
- Qualifier
- ABA-irrigated plants and the plants in drought conditione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The same inhibitive effects of ethylene on stomatal closure were observed in ABA-irrigated plants and the plants in drought condition.”
t0“Arabidopsis”
Claim · model-written summary
Under drought, transpiration was greater in eto1-1 and ethylene-treated wild type than untreated wild type.
- Taxon
- ArabidopsisArabidopsist0
- Material
- eto1-1e0
- Treatment
- drought stresse0
- Outcome
- rate of transpiratione0
- Direction
- greatere0
- Comparator
- untreated wild-type control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“upon drought stress, the rate of transpiration was greater in eto1-1 and wild-type plants exposed to ethylene than in untreated wild-type control plants”
t0“Arabidopsis”
The same questions in other papers
ethene · physiology: gas exchange · ArabidopsisResults differ
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- positive
- positive
1-aminocyclopropanecarboxylic acid · molecular: expression · ArabidopsisPositive and negative results
3 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
6 papers more in this group
See all 10 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.