Conversion of Tryptophane to Nicotinic Acid by Trichophyton equinum.
- 1 December 1949
- journal article
- research article
- Published by Frontiers Media SA in Experimental Biology and Medicine
- Vol. 72 (3) , 653-655
- https://doi.org/10.3181/00379727-72-17532
Abstract
A strain of T. equinum requires nicotinic acid for growth. This may be replaced by an equal amt. of nicotinamide or by a comparatively large amt. of L-tryptophan. After growth of the fungus in a tryptophan medium the presence of nicotinic acid was detd. by biological assay with Lactobacillus casei. This provides evidence that tryptophan is a precursor in the formation of nicotinic acid by T. equinum. The relationship of T. equinum to T. faviforme is discussed.Keywords
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