Ecology

Antonie van Leeuwenhoek

, Volume 46, Issue 6, pp 611-619

First online:

The association of calcium oxalate-utilizing Streptomyces with conifer ectomycorrhizae

  • Donald M. KnutsonAffiliated withForest Service, U.S. Department of Agriculture Pacific Northwest Forest and Range Experiment Station Forestry Sciences Laboratory
  • , Anita Stiebrs HutchinsAffiliated withForest Service, U.S. Department of Agriculture Pacific Northwest Forest and Range Experiment Station Forestry Sciences Laboratory
  • , Kermit CromackJr.Affiliated withDepartment of Forest Science, School of Forestry, Oregon State University

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Abstract

Bacteria that could utilize calcium oxalate as a major carbon source were isolated from mycorrhizae of Douglas-fir. About one-third were Streptomyces, of which eight species were identified. These organisms apparently play an important role in maintaining microsite conditions and in recycling calcium in the forest system. The ability to utilize calcium oxalate as a primary substrate provides a useful trait in Streptomyces taxonomy.