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- Title
Utilization and Production of Carbohydrates by Pyrenochaeta terrestris.
- Authors
Wright, James R.; Le Tourneau, Duane
- Abstract
The present study was concerned with the carbohydrate nutrition and composition of the fungus, Pyrenochaeta terrestris (Hansen) Gorenz, J. C. Walker and Larson. While four isolates of the fungus were used in parts of the study, isolate 2 was studied most extensively. The results are summarized as follows: 1. P. terrestris was found to utilize the following compounds as sole carbon sources when added to a mineral salt liquid medium: L-arabinose, D-ribose, D-xylose, L-rhamnose, D-fructose, D-galactose, D-glucose, D-mannose, L-sorbose, sucrose, cellobiose, lactose, maltose, melibiose, trehalose, raffinose, glycerol, i-erythritol, L-arabitol, D-mannitol, sorbitol, and i-inositol. The fungus did not grow well on D-arabinose, D-arabitol, ribitol, and dulcitol. 2. The acyclic sugar alcohol, D-mannitol, was isolated and identified from the mycelium of P. terrestris grown in liquid medium. 3. Mannitol was detected in the mycelium of P. terrestris during all periods of growth in a mineral salt medium containing various carbohydrates as sole sources of carbon. 4. Although some differences were noted in the carbohydrate content, the mycelium of all isolates of P. terrestris contained mannitol. 5. Little or no mannitol was detected in the culture filtrates after the growth of P. terrestris on the medium. 6. Glucose and lesser amounts of galactose, mannose and ribose were detected in acid hydrolyzates of the alcohol insoluble portion of the mycelium.
- Subjects
CARBOHYDRATES; PYRENOCHAETA terrestris; PLANT nutrition; MYCELIUM; GLUCOSE; MANNOSE
- Publication
Physiologia Plantarum, 1965, Vol 18, Issue 4, p1044
- ISSN
0031-9317
- Publication type
Article
- DOI
10.1111/j.1399-3054.1965.tb07003.x