Specific Transformylation of One Methionyl-tRNA from Cotton Seeding Chloroplasts by Endogenous and Escherichia coli Transformylases

Abstract
Two isoaccepting chloroplastic and one cytoplasmic tRNA(Met) species have been separated from germinating cotton cotyledons. The methionylated form of one of the chloroplastic species (but none of the other or of the cytoplasmic tRNA(Met)) can be formylated either by an endogenous transformylase or by Escherichia coli transformylase.