Amino Acid Metabolism of the Seed of Rice (Oryza sativa L.) during Germination and Seedling Growth.

Paper chromatographic determination of amino acids separately from the embryo and endosperm of rice (Oryza sativa L.) during germination and seedling growth without added nutrients for 8 days has been made. After different hours of germination the endospermic protein is hydrolysed and other amino acids appear and are translocated to the embryo. Arginine, tryptophane, tyrosine and ornithine are detected in the embryo during its growth but absent in the endosperm. Their appearance in the embryo is suggestive of interconversion by transamination. [ABSTRACT FROM AUTHOR]