منابع مشابه
Growth, Auxin, and Tropisms in Decapitated Avena Coleoptiles.
With all the work on auxin appearing in the last years it is remarkable that not more investigations are concerned with the actual role of the auxins inside the plant. Barring some early opposition, the original statement "Without auxin no growth" (12) has stood unchallenged for many years. Probably this was so because all test methods were based on the principle of proportionality between auxi...
متن کاملChemical Constitution of the Priniary Cell Walls of Avena Coleoptiles
In studies of the structure and development of primary walls of plant cells, little detailed attention has been given to the non-cellulosic components of the wall. Indeed, as Bonner (6, p. 130) has indicated, only rarely have thorough analyses of plant walls of any type been made. For the most part, characterization of wall constituents has depended on solubility properties and staining tests, ...
متن کاملGrowth & geotropic curvature of Avena coleoptiles in presence of n-1-naphthylphthalamic acid.
The fact that geotropic curvature is mediated by unequal rates of elongation on opposite sides of the bending structure has led to the general implication that (lepression of these growth rates should cause a corresponding inhibition of geotropic curvature. Recently published results have revealed that this expected relationship was not always observed when plants were treated with compounds su...
متن کاملEnhancement of CO(2) Uptake in Avena Coleoptiles by Fusicoccin.
When Avena coleoptile segments are immersed in a solution containing H(14)CO(3) (-), the appearance of label in the tissue is stimulated approximately 3-fold by fusicoccin application. This effect is rapid (1-2 minutes lag time), dependent upon respiratory energy, inhibited by carbonyl cyanide m-chlorophenylhydrazone, but not appreciably altered by cycloheximide treatment. A large percentage of...
متن کاملAuxin-induced growth of Avena coleoptiles involves two mechanisms with different pH optima.
Although rapid auxin-induced growth of coleoptile sections can persist for at least 18 hours, acid-induced growth lasts for a much shorter period of time. Three theories have been proposed to explain this difference in persistence. To distinguish between these theories, the pH dependence for auxin-induced growth of oat (Avena sativa L.) coleoptiles has been determined early and late in the el...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1957
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.32.3.192