Abstract
The seedlings of Arabidopsis were treated with N-1-naphthylphthalamic acid (NPA), IAA and GA3 respectively and also treated with NPA associated with IAA or GA3 respectively. The root length and curvature were measured after the primary root was placed horizontally for a period of time. The results indicated that at low concentrations both IAA (0.001 μmol·L-1) and GA3 (0.01-1 μmol·L-1) could facilitate the root elongation and gravitropic curvature and at high concentrations IAA (0.001-10 μmol·L-1) and GA3 (10-100 μmol·L-1) could restrain the root elongation and gravitropic curvature, that NPA could exert its inhibitions on the root elongation and gravitropic curvature as a whole, but at low concentrations NPA (0.4 μmol·L-1) tended to promote the root elongation, that at low concentrations both IAA and GA3 could oppose the prohibitive action of NPA on the root elongation and that the stimulative action of GA3 at low concentrations on the root elongation was independent of IAA.
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Claims 8
Claim · model-written summary
Low IAA facilitated root elongation and gravitropic curvature.
- Taxon
- Arabidopsis
Arabidopsist0 - Treatment
- IAA (0.001 μmol·L-1)e0
- Outcome
- root elongation and gravitropic curvaturee0
- Direction
- facilitatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at low concentrations both IAA (0.001 μmol·L-1) and GA3 (0.01-1 μmol·L-1) could facilitate the root elongation and gravitropic curvature”
t0“Arabidopsis”
Claim · model-written summary
Low GA3 facilitated root elongation and gravitropic curvature.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- GA3 (0.01-1 μmol·L-1)e0
- Outcome
- root elongation and gravitropic curvaturee0
- Direction
- facilitatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at low concentrations both IAA (0.001 μmol·L-1) and GA3 (0.01-1 μmol·L-1) could facilitate the root elongation and gravitropic curvature”
t0“Arabidopsis”
Claim · model-written summary
Higher IAA restrained root elongation and curvature.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- IAA (0.001-10 μmol·L-1)e0
- Outcome
- root elongation and gravitropic curvaturee0
- Direction
- restraine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at high concentrations IAA (0.001-10 μmol·L-1) and GA3 (10-100 μmol·L-1) could restrain the root elongation and gravitropic curvature”
t0“Arabidopsis”
Claim · model-written summary
Higher GA3 restrained root elongation and curvature.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- GA3 (10-100 μmol·L-1)e0
- Outcome
- root elongation and gravitropic curvaturee0
- Direction
- restraine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at high concentrations IAA (0.001-10 μmol·L-1) and GA3 (10-100 μmol·L-1) could restrain the root elongation and gravitropic curvature”
t0“Arabidopsis”
Claim · model-written summary
NPA inhibited root elongation and curvature overall.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- NPAe0
- Outcome
- root elongation and gravitropic curvaturee0
- Direction
- inhibitionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPA could exert its inhibitions on the root elongation and gravitropic curvature as a whole”
t0“Arabidopsis”
Claim · model-written summary
Low NPA tended to promote root elongation.
- Taxon
- ArabidopsisArabidopsist0
- Treatment
- NPA (0.4 μmol·L-1)e0
- Outcome
- root elongatione0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at low concentrations NPA (0.4 μmol·L-1) tended to promote the root elongation”
t0“Arabidopsis”
Claim · model-written summary
Low IAA opposed NPA inhibition of root elongation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at low concentrations both IAA and GA3 could oppose the prohibitive action of NPA on the root elongation”
t0“Arabidopsis”
Claim · model-written summary
Low GA3 opposed NPA inhibition of root elongation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at low concentrations both IAA and GA3 could oppose the prohibitive action of NPA on the root elongation”
t0“Arabidopsis”
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