Uronic acid constituents of oat-coleoptile cell walls.

The Photooxidation of Uric Acid by Anacystis nidulans.

12. ORDIN, L., R. CLELAND, AND J. BONNER. 1957. Methyl esterification of cell wall constituents under the influence of auxin. Plant Physiol. 32: 216-20. 13. RAY, P. M. 1962. Cell wall synthesis and cell elongation in oat coleoptile tissue. Am. J. Botany 49: 928-39. 14. RAY, P. M. 1963. Sugar composition of oat coleoptile cell walls. Biochem. J. 89: 144-50. 1 S. RAY, P. M. AND D. B. BAKER. 1962....

Auxin-induced Changes in Avena Coleoptile Cell Wall Composition.

Sugar and uronic acid residues were derived from wall polysaccharides of oat (Avena sativa, var. Victory) coleoptiles by means of 2 N trifluoroacetic acid, 72% sulfuric acid, or enzymic hydrolysis. The products of hydrolysis were reduced and acetylated to form alditol acetates which were analyzed using gas chromatography. Time-course studies of auxin-promoted changes in various wall fractions i...

Radioautographic Study of Cell Wall Deposition in Growing Plant Cells

Segments cut from growing oat coleoptiles and pea stems were fed glucose-(3)H in presence and absence of the growth hormone indoleacetic acid (IAA). By means of electron microscope radioautography it was demonstrated that new cell wall material is deposited both at the wall surface (apposition) and within the preexisting wall structure (internally). Quantitative profiles for the distribution of...

Sugar composition of oat-coleoptile cell walls.

The Effect of Auxin on Synthesis of Oat Coleoptile Cell Wall Constituents.

In the previous paper (2) we reported that a substantial increase in gross cell wall synthesis occurs when oat coleoptile cylinders whose elongation is inhibited by Ca+ + are treated with IAA; this effect of auxin is direct in the sense that it is due to hormone action rather than to the occurrence of elongation. This paper presents information on the components of the cell wall whose synthesis...