ISOLATION AND IDENTIFICATION OF THE SUDANOPHILIC GRANULES OF SPHAEROTILUS NATANS
- 1 February 1962
- journal article
- research article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 83 (2), 343-+
- https://doi.org/10.1128/jb.83.2.343-347.1962
Abstract
The characteristic and prominent sudanophilic granules in five strains of Sphaerotilus natans were shown to be composed of poly-[beta]-hydroxy-butyric acid by the method of isolation, melting point determinations, and infrared absorption spectrum analyses. The polymer may account for 11.0 to 22.5% of the dry weight of the cells. It accumulates during active growth of S. natans and decreases sharply in amount after maximal growth. It accumulates to an equal extent in cultures with and without sheaths.Keywords
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