You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Cellulolytic Activity of Thermophilic Fungi and Actinomycetes
C. L. Fergus
Vol. 61, No. 1 (Jan. - Feb., 1969), pp. 120-129
Published by: Mycological Society of America
Stable URL: http://www.jstor.org/stable/3757350
Page Count: 10
You can always find the topics here!Topics: Thermophilic microorganisms, Enzymes, Actinomycetes, Fungi, Chaetomium, Mycelium, Streptomyces, Flasks, Reed Sternberg cells, Cryptococcus
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
The thermophilic molds showed greater cellulolytic ability than did the thermophilic actinomycetes. Chaetomium thermophile var. coprophile, C. thermophile var. dissitum, Humicola grisea var. thermoidea, H. insolens, Myriococcum albomyces, Sporotrichum thermophile, and Torula thermophila were able to degrade filter paper and utilize soluble carboxymethyl cellulose (CMC). Malbranchea pulchella var. sulfurea, Stilbella thermophila and Talaromyces thermophilus could not degrade filter paper, but their cell-free filtrates contained the Cx enzyme that could hydrolyze soluble carboxymethyl cellulose to reducing sugars. Humicola lanuginosa, H. stellata, Mucor mechei, M. pusillus and Thermoascus aurantiacus could not degrade filter paper nor hydrolyze CMC. Streptomyces thermoviolaceus var. pingens was the only actinomycete to significantly degrade filter paper. Thermomonospora curvata caused a slight loss in weight. Cell-free filtrates from these two, plus filtrates from Pseudonocardia thermophila, Streptomyces rectus, and S. thermovulgaris were able to hydrolyze CMC. Micromonospora chalcea, Streptomyces violaceoruber, Thermoactinomyces glaucus, T. vulgaris and Thermomonospora viridis could not degrade filter paper or hydrolyze CMC. The Cx enzyme is an induced enzyme, since none of the microorganisms produced it in a medium lacking cellulose.
Mycologia © 1969 Mycological Society of America