Claim · model-written summary
Sodium fluoride inhibited total pH 4-induced growth by 73% in unpeeled oat coleoptile segments during the first hour.
- Taxon
- oat
Avena sativae0 - Organ / stage
- unpeeled segmentse1
- Treatment
- sodium fluoridee1
- Outcome
- total pH 4-induced growthe1
- Direction
- inhibitede1
- Value
- 73%e1
- Qualifier
- during the 1st houre1
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oat (Avena sativa L. var. Victory) coleoptile segments”
e1“In unpeeled segments total pH 4-induced growth is inhibited 73% by sodium fluoride and 38% by anoxia during the 1st hour”
Title
Cyanide Inhibition of Acid-induced Growth in Avena Coleoptile Segments
Morris G. Cline; Michael L. Evans; Marilyn M. Rehm PLANT PHYSIOLOGY 1979. doi:10.1104/pp.64.5.679
Other claims from this paper (9)
- Intervention effect 1 millimolar KCN added at the time of acidification inhibited acid (pH 4)-induced growth in both peeled and unpeeled oat coleoptile segments.
- Intervention effect KCN inhibited total acid-induced growth by 59% in peeled oat coleoptile segments during the first 60 minutes.
- Intervention effect KCN inhibited total acid-induced growth by 76% in nonpeeled oat coleoptile segments during the first 60 minutes.
- Intervention effect The growth rate of cyanide-treated tissue dropped to zero or near zero in both peeled and nonpeeled segments during the first 60 minutes.
- Intervention effect At pH 5, cyanide inhibited total acid-induced growth in peeled segments by about 80% during the first 60 minutes, more severely than at pH 4.
- Intervention effect Anoxia inhibited total pH 4-induced growth by 38% in unpeeled oat coleoptile segments during the first hour.
- Intervention effect Cyanide inhibited auxin-induced growth much more rapidly than acid-induced growth.
- Mechanism The authors suggest that acid growth may depend on respiratory metabolism, but to a lesser degree than auxin-induced growth.
- Mechanism If the acid growth theory of auxin action is correct, there may be two respiration-dependent steps in the growth process: auxin-induced proton pumping, highly sensitive to respiratory inhibitors, and acid-mediated wall loosening, moderately and perhaps indirectly sensitive.