Abstract
Ethylene production by IAA-treated mung bean hypocotyl segments under various oxygen levels in the ambient atmosphere was examined. Rate of ethylene production was dependent upon oxygen levels, and gave a sigmoidal curve against oxygen levels. Tissue segments preincubated with IAA in low oxygen levels (1–10% O2 in N2) produced ethylene without a lag period at a rate higher than that by control tissue segments preincubated in air, when they were exposed to a high oxygen level (air, 21% O2). The effect of cycloheximide on tissue segments transferred from a low oxygen level to air was not much different from that on ethylene production by control tissue segments previously incubated in air. Incorporation of U-14C-leucine into the protein fraction by tissue segments placed in nitrogen was negligible, but that in 2% oxygen was 10 to 14% of that in air. It was concluded that oxygen was an essential factor for both the induction process of the ethylene producing system and the synthesis of ethylene, and that although synthesis of ethylene is dependent upon oxygen levels, formation of the ethylene producing system proceeded even under low oxygen levels.
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Claims 7
Claim · model-written summary
Ethylene production by mung bean hypocotyl segments depended on oxygen level, with a sigmoidal response.
- Taxon
- mung bean
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Vigna radiatae0 - Treatment
- oxygen levelse1
- Outcome
- Rate of ethylene productione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Ethylene production by IAA-treated mung bean hypocotyl segments under various oxygen levels in the ambient atmosphere was examined”
e1“Rate of ethylene production was dependent upon oxygen levels, and gave a sigmoidal curve against oxygen levels”
Claim · model-written summary
IAA-preincubated segments in low oxygen produced ethylene without a lag at a higher rate than air-preincubated control segments.
- Taxon
- mung beanVigna radiatae0
- Treatment
- preincubated with IAA in low oxygen levelse2
- Outcome
- produced ethylenee2
- Direction
- highere2
- Qualifier
- without a lag periode2
- Comparator
- control tissue segments preincubated in aire2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene production by IAA-treated mung bean hypocotyl segments under various oxygen levels in the ambient atmosphere was examined”
e2“Tissue segments preincubated with IAA in low oxygen levels (1–10% O2 in N2) produced ethylene without a lag period at a rate higher than that by control tissue segments preincubated in air”
Claim · model-written summary
Cycloheximide had no marked difference in its effect on ethylene production after transfer from low oxygen to air compared with air-incubated controls.
- Taxon
- mung beanVigna radiatae0
- Treatment
- cycloheximidee3
- Outcome
- ethylene productione3
- Direction
- no_changeinferrede3
- Comparator
- control tissue segments previously incubated in aire3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene production by IAA-treated mung bean hypocotyl segments under various oxygen levels in the ambient atmosphere was examined”
e3“The effect of cycloheximide on tissue segments transferred from a low oxygen level to air was not much different from that on ethylene production by control tissue segments previously incubated in air”
Claim · model-written summary
Incorporation of U-14C-leucine into protein in nitrogen-placed mung bean segments was negligible.
- Taxon
- mung beanVigna radiatae0
- Treatment
- placed in nitrogene4
- Outcome
- Incorporation of U-14C-leucine into the protein fractione4
- Direction
- negligiblee4
- Comparator
- in aire5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene production by IAA-treated mung bean hypocotyl segments under various oxygen levels in the ambient atmosphere was examined”
e4“Incorporation of U-14C-leucine into the protein fraction by tissue segments placed in nitrogen was negligible”
e5“but that in 2% oxygen was 10 to 14% of that in air”
Claim · model-written summary
Incorporation of U-14C-leucine into protein in 2% oxygen was 10 to 14% of that in air.
- Taxon
- mung beanVigna radiatae0
- Treatment
- 2% oxygene5
- Outcome
- Incorporation of U-14C-leucine into the protein fractione4
- Direction
- lowerinferrede5
- Value
- 10 to 14%e5
- Comparator
- that in aire5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene production by IAA-treated mung bean hypocotyl segments under various oxygen levels in the ambient atmosphere was examined”
e4“Incorporation of U-14C-leucine into the protein fraction by tissue segments placed in nitrogen was negligible”
e5“but that in 2% oxygen was 10 to 14% of that in air”
Claim · model-written summary
Oxygen is asserted to be an essential factor for both the induction of the ethylene producing system and ethylene synthesis.
- Taxon
- mung beanVigna radiatae0
- Outcome
- induction process of the ethylene producing system and the synthesis of ethylenee6
- Qualifier
- oxygen was an essential factore6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene production by IAA-treated mung bean hypocotyl segments under various oxygen levels in the ambient atmosphere was examined”
e6“It was concluded that oxygen was an essential factor for both the induction process of the ethylene producing system and the synthesis of ethylene”
Claim · model-written summary
The ethylene producing system formed even under low oxygen levels.
- Taxon
- mung beanVigna radiatae0
- Treatment
- low oxygen levelse7
- Outcome
- formation of the ethylene producing systeme7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene production by IAA-treated mung bean hypocotyl segments under various oxygen levels in the ambient atmosphere was examined”
e7“formation of the ethylene producing system proceeded even under low oxygen levels”
The same questions in other papers
cycloheximide · physiology: hormones · Vigna radiata (mung bean)Results agree
1 paper in the same direction as this paper
- negative
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.