Abstract
Oscillation in the growth rate as well the lag time for an IAA response in bean (Phaseolus vulgaris) hypocotyls were studied with a displacement transducer. The growing zone of the hypocotyl showed continuous oscillation in the growth rates for intact seedlings, hypocotyl explants with or without cotyledons, and explants submerged in water. The lag time for the IAA response was shortened by the presence of cotyledon tissues as well as by preliminary treatment with gibberellic acid and sucrose. When IAA first was applied to the basal cut surface then to the upper cut surface of the hypocotyl explant, two growth responses with distinct lag periods were found. The difference in the passage of auxin due to the direction of transport in the hypocotyl is discussed.
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Claims 5
Claim · model-written summary
Bean hypocotyl growing zones continuously oscillated in growth rate across the tested preparations.
- Taxon
- bean (Phaseolus vulgaris)
Phaseolus vulgarise1 - Organ / stage
- hypocotyle0
- Outcome
- continuous oscillation in the growth ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growing zone of the hypocotyl showed continuous oscillation in the growth rates for intact seedlings, hypocotyl explants with or without cotyledons, and explants submerged in water.”
e1“bean (Phaseolus vulgaris) hypocotyls”
Claim · model-written summary
Cotyledon tissue shortened the lag time for IAA response in bean hypocotyls.
- Taxon
- bean (Phaseolus vulgaris)Phaseolus vulgarise1
- Treatment
- presence of cotyledon tissuese0
- Outcome
- lag time for the IAA responsee0
- Direction
- shortenede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lag time for the IAA response was shortened by the presence of cotyledon tissues as well as by preliminary treatment with gibberellic acid and sucrose.”
e1“bean (Phaseolus vulgaris) hypocotyls”
Claim · model-written summary
Preliminary gibberellic acid treatment shortened the IAA response lag time.
- Taxon
- bean (Phaseolus vulgaris)Phaseolus vulgarise1
- Treatment
- gibberellic acide0
- Outcome
- lag time for the IAA responsee0
- Direction
- shortenede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lag time for the IAA response was shortened by the presence of cotyledon tissues as well as by preliminary treatment with gibberellic acid and sucrose.”
e1“bean (Phaseolus vulgaris) hypocotyls”
Claim · model-written summary
Preliminary sucrose treatment shortened the IAA response lag time.
- Taxon
- bean (Phaseolus vulgaris)Phaseolus vulgarise1
- Treatment
- sucrosee0
- Outcome
- lag time for the IAA responsee0
- Direction
- shortenede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lag time for the IAA response was shortened by the presence of cotyledon tissues as well as by preliminary treatment with gibberellic acid and sucrose.”
e1“bean (Phaseolus vulgaris) hypocotyls”
Claim · model-written summary
Sequential basal then upper IAA application gave two responses with distinct lag periods.
- Taxon
- bean (Phaseolus vulgaris)Phaseolus vulgarise1
- Treatment
- IAA first was applied to the basal cut surface then to the upper cut surfacee0
- Outcome
- two growth responses with distinct lag periodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When IAA first was applied to the basal cut surface then to the upper cut surface of the hypocotyl explant, two growth responses with distinct lag periods were found.”
e1“bean (Phaseolus vulgaris) hypocotyls”
The same questions in other papers
sucrose · molecular: metabolites · Phaseolus vulgaris (common bean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
Gibberellic acid · molecular: metabolites · Phaseolus vulgaris (common bean)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- no effect
- no effect
- no effect
2 papers more in this group
See all 6 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.