Studies on occurrence, changes during germination and distribution of the flavin coenzyme nucleotides in plants

Abstract

Although the occurrencc of riboflavin in plants is well known, there is no information on the forms in which it occurs in plants. The present paper deals with the riboflavin nucleotide contents of some rcstina seeds and the changes in lheir nuantitative make up during germination. The efl'ect of light on the synthesis of Aavin nucleotides has been reported and discussed. The flavin content is largely made up of PAD. There is very little free riboflavin in resting soeds. The radicle oP the germinating seedlings contain almost all the FAD and the major portion of the flavins in the seedlings, while the plumule contains FMN as the major flavin.