Correlative Studies on Plant Growth and Metabolism. I. Changes in Protein and Soluble Nitrogen Accompanying Gibberellin-Induced Growth in Lettuce Seedlings

Abstract

Gibberellin treatment resulted in enhanced mobilization of reserve N from the cotyledons to the growing axes. More N, however, was retained in the hypocotyl than was translocated to the roots. The internal distribution of the translocatable N thus was altered by gibberellin treatment. The growth effects of gibberellin showed no direct relationship either with loss of protein from the cotyledons or the extent of enhanced protein synthesis.