Changes in Nucleic Acids and Other Phosphorus-Containing Compounds of Developing Wheat Grain

Abstract

In both tho developing endosperm and testa-perica.rp thero was a relationship between the content of inorganic phosphorus, acid-soluble acid-labile phosphorus, and acid-soluble organic phosphorus ("phytic acid"), and the water content. The times of restriction of supply of water to the endosperm and to the testa-perion!'p fairly closely corresponded with the times of initiation of rapid synthei?-is of phytic acid and of a corresponding rapid decline in content of inorganic phosphorus and reactive phosphoryl groups.