STUDIES OF MARINE PLANKTONIC DIATOMS:II. USE OF CYCLOTELLA NANA HUSTEDT FOR ASSAYS OF VITAMIN B12 IN SEA WATER
- 1 August 1962
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Microbiology
- Vol. 8 (4) , 437-445
- https://doi.org/10.1139/m62-057
Abstract
Cyclotella nana Hustedt, a small centric diatom requiring vitamin B12, was tested as a potential assay organism for that vitamin. Dose–response curves, measured by optical density and cell count, showed a linear relation between growth and B12 concentration between 0 and at least 2 μμg/ml of the vitamin. Since the diatom is hardy, grows rapidly under a variety of conditions, and may be preserved for later examination, it represents a useful assay organism for certain applications such as oceanographic exploration.Keywords
This publication has 5 references indexed in Scilit:
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