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Utilization of Carbon Compounds by Helminthosporium maydis and H. carbonum

J. J. Ellis, G. A. Bennett and C. W. Hesseltine
Mycologia
Vol. 65, No. 3 (May - Jun., 1973), pp. 539-547
DOI: 10.2307/3758258
Stable URL: http://www.jstor.org/stable/3758258
Page Count: 9
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Utilization of Carbon Compounds by Helminthosporium maydis and H. carbonum
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Abstract

Five strains of Helminthosporium maydis Nisik. et Miyake and two strains of H. carbonum Ullstrup were grown on 14 carbohydrates and 13 fatty acids each as the sole carbon source. All carbohydrates except L(-)-sorbose supported excellent growth. Fatty acids having 12 or more carbon atoms supported growth of all strains except H. carbonum Race II, which failed to grow on linolenic acid. Optimum growth of strain NRRL 5128 H. maydis Race T in shaken culture occurred within 7 days at 28 C. Under these conditions this strain utilized 45-55% of corn oil when incorporated into the medium at 5% by volume as the sole carbon source.

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