Abstract
Gravicurvature in water- and auxin (IAA)-incubated coleoptiles of rye (Secale cereale L.) is similar, despite a general strongly enhancing effect of exogenous IAA on the overall (cell) elongation of these organs. Longitudinally split coleoptiles or isolated longitudinally halved coleoptiles (horizontally positioned as upper or lower halves) respond gravitropically in the same way as water-incubated intact coleoptiles, irrespective of whether the halves are incubated in distilled water or IAA. A new model for the principal mechanism of regulation of gravitropic growth is proposed which depends on, yet does not involve, the redistribution of IAA as the means for gravistimulated differential growth, as postulated by the Cholodny-Went hypothesis (CWH). It is based on a gravimediated temporarily restrained infiltration of IAA-induced wall-loosening factors into the growth-limiting outer epidermal walls of the concave organ flank.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Gravicurvature was similar in water and auxin incubated rye coleoptiles.
- Taxon
- rye
Secale cerealee0 - Organ / stage
- coleoptilese0
- Treatment
- auxin (IAA)e0
- Outcome
- Gravicurvaturee0
- Direction
- similare0
- Comparator
- watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Gravicurvature in water- and auxin (IAA)-incubated coleoptiles of rye (Secale cereale L.) is similar”
Claim · model-written summary
Exogenous IAA strongly enhanced overall coleoptile cell elongation.
- Taxon
- ryeSecale cerealee1
- Organ / stage
- coleoptilese1
- Treatment
- exogenous IAAe0
- Outcome
- overall (cell) elongatione0
- Direction
- strongly enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a general strongly enhancing effect of exogenous IAA on the overall (cell) elongation of these organs.”
e1“coleoptiles of rye (Secale cereale L.)”
Claim · model-written summary
Split or halved coleoptiles responded gravitropically like intact water-incubated coleoptiles under water or IAA.
- Taxon
- ryeSecale cerealee1
- Organ / stage
- coleoptilese0
- Outcome
- respond gravitropically in the same waye0
- Direction
- same waye0
- Comparator
- water-incubated intact coleoptilese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Longitudinally split coleoptiles or isolated longitudinally halved coleoptiles (horizontally positioned as upper or lower halves) respond gravitropically in the same way as water-incubated intact coleoptiles, irrespective of whether the halves are incubated in distilled water or IAA.”
e1“coleoptiles of rye (Secale cereale L.)”
Claim · model-written summary
The proposed model invokes temporarily restrained infiltration of IAA-induced wall-loosening factors into outer epidermal walls.
- Taxon
- ryeSecale cerealee1
- Outcome
- growth-limiting outer epidermal walls of the concave organ flanke0
- Qualifier
- gravimediated temporarily restrained infiltration of IAA-induced wall-loosening factorse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is based on a gravimediated temporarily restrained infiltration of IAA-induced wall-loosening factors into the growth-limiting outer epidermal walls of the concave organ flank.”
e1“coleoptiles of rye (Secale cereale L.)”
The same questions in other papers
indole-3-acetic acid · growth · Secale cereale (rye)Results agree
1 paper in the same direction as this paper
- positive
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.