Biosynthesis of Phenylalanine and Tyrosine in Claviceps

H.-P. Schmauder; D. Gröger

doi:10.1055/s-2007-969195

Planta Medica, Table of Contents

Planta Med 1986; 52(5): 395-397
DOI: 10.1055/s-2007-969195

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Biosynthesis of Phenylalanine and Tyrosine in Claviceps

H.-P. Schmauder¹ , D. Gröger²

¹Friedrich-Schiller-University, Department of Biology, DDR-6900 Jena, German Democratic Republic.
²Institute for Plant Biochemistry, Academy of Sciences of the GDR, Weinberg 3, DDR-4050 Halle (Saale), German Democratic Republic.

Abstract

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Abstract

Some enzymes of the terminal steps of phenylalanine and tyrosine biosyntheses were investigated in various alkaloid-forming ergot strains. All strains studied utilize both arogenate and phenylpyruvate as an intermediate in L-phenylalanine synthesis. L-Tyrosine is preferentially or exclusively synthesized via the arogenate pathway. No feedback inhibition of arogenate pathway enzymes by aromatic amino acids was observed.

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