Studies on Actinomycetes from Soils of Baffin Island'
ABSTRACT. Investigations were made of the abundance and relative incidence of different types of actinomycetes in soil samples from Baffin Island, Northwest Ter-ritories. Numbers were relatively low in all samples examined, and no specific group predominated. Cultures grown at 26°C. showed greater m...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.559.1501 http://pubs.aina.ucalgary.ca/arctic/arctic22-2-130.pdf |
| Summary: | ABSTRACT. Investigations were made of the abundance and relative incidence of different types of actinomycetes in soil samples from Baffin Island, Northwest Ter-ritories. Numbers were relatively low in all samples examined, and no specific group predominated. Cultures grown at 26°C. showed greater metabolic activity than when grown at lO"C., and isolates from different soils varied in degree of activity. Ammonium nitrogen proved to be the best nitrogen source. A comparatively wide range of carbon compounds was utilized; glucose, fructose, mannitol, raffinose and sucrose were the best sources. Moderate growth of a large number of isolates was also obtained with acetate, fumarate, pyruvate and succinate. With one exception the incidence of actinomycetes antagonistic toward bacteria, yeasts and fungi was remarkably high in the soils studied. The samples did, however, differ in proportion of antagonistic types. RÉSUMÉ. Études sur les actinomycètes des sols de l'île de Baffin. On a mené des enquêtes sur l'abondance et l'incidence relative des différents types d'actinomycètes dans des échantillons de sols de l'île de Baffin, Territoires du Nord-Ouest. Tous les |
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