Abstract
Auxin induced an increase in the rate of ethylene production by hypocotyl segments of etiolated mungbean seedlings after a 1 hr lag period. The increase in the production rate was greatest with segments immediately below the cotyledonary hook. Effective concentrations of indoleacetic acid ranged from 1 μm to 0.5 mM. Length of the lag period was the same regardless of the interval between segment excision and the addition of auxin. Auxin-induced ethylene production was inhibited by cycloheximide but not by chloramphenicol. Auxin removal from, or cycloheximide addition to, segments actively producing ethylene in response to auxin caused a rapid decrease in the rate of ethylene production. These results suggest that the ethylene producing system induced by auxin is rapidly turning over and that auxin acts at two sites to increase ethylene production
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Claims 9
Claim · model-written summary
Auxin increased ethylene production after a one-hour lag.
- Taxon
- mungbean
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Vigna radiatae0 - Organ / stage
- hypocotyl segmentse0
- Treatment
- Auxine0
- Outcome
- rate of ethylene productione0
- Direction
- increasee0
- Qualifier
- 1 hr lag periode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Auxin induced an increase in the rate of ethylene production by hypocotyl segments of etiolated mungbean seedlings after a 1 hr lag period.”
Claim · model-written summary
The production increase was greatest immediately below the cotyledonary hook.
- Taxon
- mungbeanVigna radiatat0
- Organ / stage
- segments immediately below the cotyledonary hooke0
- Outcome
- increase in the production ratee0
- Direction
- greateste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in the production rate was greatest with segments immediately below the cotyledonary hook.”
t0“mungbean hypocotyl segments”
Claim · model-written summary
Indoleacetic acid was effective from 1 μm to 0.5 mM.
- Taxon
- mungbeanVigna radiatat0
- Outcome
- Effective concentrations of indoleacetic acide0
- Value
- 1 μm to 0.5 mMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Effective concentrations of indoleacetic acid ranged from 1 μm to 0.5 mM.”
t0“mungbean hypocotyl segments”
Claim · model-written summary
The lag period was unchanged across intervals between excision and auxin application.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- interval between segment excision and the addition of auxine0
- Outcome
- Length of the lag periode0
- Direction
- the samee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Length of the lag period was the same regardless of the interval between segment excision and the addition of auxin.”
t0“mungbean hypocotyl segments”
Claim · model-written summary
Cycloheximide inhibited auxin-induced ethylene production.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- cycloheximidee0
- Outcome
- Auxin-induced ethylene productione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Auxin-induced ethylene production was inhibited by cycloheximide but not by chloramphenicol.”
t0“mungbean hypocotyl segments”
Claim · model-written summary
Chloramphenicol did not inhibit auxin-induced ethylene production.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- chloramphenicole0
- Outcome
- Auxin-induced ethylene productione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Auxin-induced ethylene production was inhibited by cycloheximide but not by chloramphenicol.”
t0“mungbean hypocotyl segments”
Claim · model-written summary
Removing auxin rapidly decreased ethylene production in responding segments.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- Auxin removale0
- Outcome
- rate of ethylene productione0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Auxin removal from, or cycloheximide addition to, segments actively producing ethylene in response to auxin caused a rapid decrease in the rate of ethylene production.”
t0“mungbean hypocotyl segments”
Claim · model-written summary
Adding cycloheximide rapidly decreased ethylene production in responding segments.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- cycloheximide additione0
- Outcome
- rate of ethylene productione0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Auxin removal from, or cycloheximide addition to, segments actively producing ethylene in response to auxin caused a rapid decrease in the rate of ethylene production.”
t0“mungbean hypocotyl segments”
Claim · model-written summary
The authors infer that the induced ethylene-production system turns over rapidly and auxin acts at two sites.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- auxine0
- Outcome
- ethylene productione0
- Qualifier
- rapidly turning overe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results suggest that the ethylene producing system induced by auxin is rapidly turning over and that auxin acts at two sites to increase ethylene production”
t0“mungbean hypocotyl segments”
The same questions in other papers
cycloheximide · physiology: hormones · Vigna radiata (mung bean)Results agree
1 paper in the same direction as this paper
- no effect
class · physiology: hormones · Vigna radiata (mung bean)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- 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.