Skip to main content
NCBI home page
Plant Physiology logoLink to Plant Physiology
. 1973 Feb;51(2):312–317. doi: 10.1104/pp.51.2.312

Effects of Calcium and Kinetin on Growth and Cell Wall Composition of Pea Epicotyls

James F Nance a
PMCID: PMC366256  PMID: 16658321

Abstract

Kinetin and CaCl2, in the presence of indoleacetic acid, promoted lateral expansion of epicotyls of decapitated and derooted Alaska pea seedlings (Pisum sativum L.) and inhibited their elongation. This growth response was correlated with the development of cell walls unusually rich in pectic uronic acids. Epicotyls in calcium-auxin solutions continued to enlarge and to add new wall material long after tissues in auxin only had stopped. Longitudinal enlargement, associated with the development of walls poor in pectic uronic acids, was favored by KCl, MgCl2, and ethylenediaminetetraacetate. The last of these agents promoted the loss of 45Ca from the epicotyls. Seedings grown in vermiculite moistened with CaCl2, KCl, or MgCl2 solutions did not differ in appearance or in the composition of their walls. They responded similarly to experimental treatment except that the decapitated epicotyls of the MgCl2-grown plants suffered an absolute loss of pectic uronate when incubated in that salt.

Full text

PDF
312

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Apelbaum A., Burg S. P. Altered Cell Microfibrillar Orientation in Ethylene-treated Pisum sativum Stems. Plant Physiol. 1971 Nov;48(5):648–652. doi: 10.1104/pp.48.5.648. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. BEAN R. C., ORDIN L. A study of procedures for isolation and fractionation of plant cell walls. Anal Biochem. 1961 Dec;2:544–557. doi: 10.1016/0003-2697(61)90022-7. [DOI] [PubMed] [Google Scholar]
  3. BITTER T., MUIR H. M. A modified uronic acid carbazole reaction. Anal Biochem. 1962 Oct;4:330–334. doi: 10.1016/0003-2697(62)90095-7. [DOI] [PubMed] [Google Scholar]
  4. Birmingham B. C., Maclachlan G. A. Generation and suppression of microsomal ribonuclease activity after treatments with auxin and cytokinin. Plant Physiol. 1972 Mar;49(3):371–375. doi: 10.1104/pp.49.3.371. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Datko A. H., Maclachlan G. A. Indoleacetic Acid and the synthesis of glucanases and pectic enzymes. Plant Physiol. 1968 May;43(5):735–742. doi: 10.1104/pp.43.5.735. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Ray P. M., Baker D. B. The Effect of Auxin on Synthesis of Oat Coleoptile Cell Wall Constituents. Plant Physiol. 1965 Mar;40(2):353–360. doi: 10.1104/pp.40.2.353. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Roberts R. M., Deshusses J., Loewus F. Inositol Metabolism in Plants. V. Conversion of Myo-inositol to Uronic Acid and Pentose Units of Acidic Polysaccharides in Root-tips of Zea mays. Plant Physiol. 1968 Jun;43(6):979–989. doi: 10.1104/pp.43.6.979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. THIMANN K. V., SLATER R. R., CHRISTIANSEN G. S. The metabolism of stem tissue during growth and its inhibition. IV. Growth inhibition without enzyme poisoning. Arch Biochem. 1950 Aug;28(1):130–137. [PubMed] [Google Scholar]
  9. Tagawa T., Bonner J. Mechanical Properties of the Avena Coleoptile As Related to Auxin and to Ionic Interactions. Plant Physiol. 1957 May;32(3):207–212. doi: 10.1104/pp.32.3.207. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from Plant Physiology are provided here courtesy of Oxford University Press

RESOURCES