Abstract
The yeast Rhodotorula graminis utilizes benzoate, D,L-mandelate, phenylalanine, and salicylate as sole sources of carbon and energy. Pathways for phenylalanine and mandelate catabolism converge at benzoate; growth of R. graminis on phenylalanine, man-delate, and benzoate elicits the synthesis of benzoate-4-hydroxy-lase, £-hydroxybenzoate-3-hydroxylase, and protocatechuate-3,4-dioxygenase; these enzymes were not detected in crude extracts prepared from salicylate-grown cells. Mutants deficient in either £-hydroxybenzoate-3-hydroxylase or protocatechuate-3,4-dioxygenase were unable to utilize benzoate, phenylalanine, or mandelate; salicylate, however, did support growth. Revertants obtained from either class of mutants resulted in wild-type growth on benzoate, phenylalanine, and mandelate.
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© 1984 Plenum Press, New York
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McNamee, C., Wattam, R., Flickinger, J., Stewart, D., Durham, D.R. (1984). Dissimilation of Aromatic Compounds by Rhodotorula Graminis. In: Omenn, G.S., et al. Genetic Control of Environmental Pollutants. Basic Life Sciences, vol 28. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-4715-6_25
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DOI: https://doi.org/10.1007/978-1-4684-4715-6_25
Publisher Name: Springer, Boston, MA
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Online ISBN: 978-1-4684-4715-6
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