Abstract: | Glycollic acid-1-14C, glyoxylic acid-2-14C, glycine-1-14C, andglycine-2-14C were fed to illuminated excised leaves of Pisumsativum and the distribution of 14C determined in the glycine,serine, sucrose, and insoluble polyglucan formed. Carboxyl-labelledglycollic acid and glycine gave rise to randomly labelled polyglucanand sucrose although the serine formed was predominantly carboxyllabelled. By contrast glyoxylic acid and glycine labelled inthe -carbon did not give rise to randomly labelled serine, sucrose,or polyglucan. |