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 is affected directly by auxin under the conditions of these experiments.