Abstract
Abstract The excised, hooked bean hypocotyl was the system used to determine wheiher the ‘auxin‐ and gibberellin like’ effect of the lipoidal pollen extract, Brass in‐complex (Br), were mediated through, or independent of, auxin and gibberellin. The morphogenetic events of hook opening and hypocotyl elongation in this system are regulated by auxin and gibberellin, respectively. Brassin complex, like IAA, elicited a book closure in (he dark and retarded its opening in red light. This effect was synergized by T1BA, IAA and the presence of the auxin‐producing organs, the epicotyl and cotyledons. Br‐elicited hook closure was inhibited by the antiauxin. PCIB. Both GA 3 and Br totally reversed the light inhibition of hypocotyl elongation. The GA 3 ‐effect, but nol the Br elicited elongation, was overcome by Ancymidol. Hypocotyl elongation was partially inhibited by TIBA and PCIB. suggesting a possible auxin involvement also in this effect of Br. Br may elicit its growth responses through an effect on endogenous auxin levels, In this way it is different from other lipoidat growth regulators, such as the oleanimins which require the presence of exogenous growth regulators for activity.
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Claims 7
Claim · model-written summary
Brassin complex closed the hook in darkness and delayed opening in red light.
Verbatim
e0“Brassin complex, like IAA, elicited a book closure in (he dark and retarded its opening in red light”
e1“bean hypocotyl”
Claim · model-written summary
TIBA, IAA, and auxin-producing organs synergized the Brassin complex hook response.
- Taxon
- beane1
- Treatment
- T1BA, IAA and the presence of the auxin‐producing organse0
- Outcome
- effecte0
- Direction
- synergizede0
Not reportedComparator
Verbatim
e0“This effect was synergized by T1BA, IAA and the presence of the auxin‐producing organs, the epicotyl and cotyledons”
e1“bean hypocotyl”
Claim · model-written summary
PCIB inhibited Brassin complex induced hook closure.
Not reportedComparator
Verbatim
e0“Br‐elicited hook closure was inhibited by the antiauxin. PCIB”
e1“bean hypocotyl”
Claim · model-written summary
GA3 and Brassin complex reversed light inhibition of hypocotyl elongation.
- Taxon
- beane1
- Treatment
- GA 3 and Bre0
- Outcome
- light inhibition of hypocotyl elongatione0
- Direction
- reversede0
Not reportedComparator
Verbatim
e0“Both GA 3 and Br totally reversed the light inhibition of hypocotyl elongation”
e1“bean hypocotyl”
Claim · model-written summary
Ancymidol overcame the GA3 elongation effect but not the Br effect.
Verbatim
e0“The GA 3 ‐effect, but nol the Br elicited elongation, was overcome by Ancymidol”
e1“bean hypocotyl”
Claim · model-written summary
TIBA and PCIB partially inhibited hypocotyl elongation.
Not reportedComparator
Verbatim
e0“Hypocotyl elongation was partially inhibited by TIBA and PCIB”
e1“bean hypocotyl”
Claim · model-written summary
Brassin complex may act through endogenous auxin levels.
Verbatim
e0“Br may elicit its growth responses through an effect on endogenous auxin levels”
e1“bean hypocotyl”
The same questions in other papers
Gibberellic acid · disease · Phaseolus vulgaris (common bean)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
3 papers more in this group
See all 7 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.