The Nutrition of Monosporium Apiospermum

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Abstract
SUMMARY Monosporium apiospermum has been grown in Czapek's synthetic nutrient solution. The organism is able to utilize a wide variety of sugars, alcohols, amino acids and organic acids as sources of carbon. Good carbon sources include xylose, glucose, levulose, galactose, mannose, sucrose, trehalose, dextrin, starch, dulcitol, adonitol, alanine, serine, valine, isoleucine, arginine · HCl, glutamic acid, tyrosine, tryptophane and proline. Rhamnose, sorbose, inositol, sorbitol, mannitol, cystine, methionine and histidine · HCl are not available to the organism as sources of carbon. M. apiospermum is non-exacting in its nitrogen requirement, being able to utilize nitrate, ammonium or amino nitrogen. Growth occurred upon each of 23 amino acids tested as a nitrogen source. Glycine, alanine, valine, leucine, methionine, histidine-HCl, aspartic acid, asparagine, glutamic acid and tryptophane were better nitrogen sources than the other amino acids tested. This fungus can grow within the pH range 3.6–10.8, with an optimum pH of 7.0–7.6. Growth of M. apiospermum occurs between a lower temperature limit at 15–20° C. and an upper limit at 40–45° C., with an optimum at approximately 30° C.