STUDIES ON THE OCCURRENCE, CHANGES DURING GERMINATION AND DISTRIBUTION OF THE FLAVIN NUCLEOTIDE COENZYMES IN SEEDS

Abstract

Although the occurrence of riboflavin in plants is well known there is no informationon the forms in which it occurs in plants. The present paper deals with the riboflavin nucleotide contents of some resting seeds and the changes in their quantitative make up during germination. The effect of light on the synthesis of flavin nucleotides has been reported and discussed.

The flavin content is largely made up of FAD. There is very little free riboflavinin resting seeds. The radicle of the germinating seedling contain almost all the FAD and the major portion of the flavins in the seedlings, while the plumule contains FMN as the major flavin.