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Appl Environ Microbiol. 1974 October; 28(4): 572-578
Copyright © 1974 American Society for Microbiology. All Rights Reserved.

Sorption of Heterotrophic and Enteric Bacteria to Glass Surfaces in the Continuous Culture of River Water

Department of Microbiology, The University of Georgia, Athens, Ga. 30602

ABSTRACT

A natural population of heterotrophic bacteria, including enterics, was observed to sorb to glass surfaces and multiply during the continuous culture of river water. An initial rate of attachment equivalent to a doubling time of about 2 h was observed with a corresponding increase in the suspended population. After 24 h both the sorbed and suspended populations stabilized with a mass doubling time approximating 100 h at a dilution rate of 0.012/h. On the basis of respiration and degradative enzymatic data, the sorbed microorganisms appeared to be somewhat more metabolically active than the organisms in suspension.

¹ Present address: U.S. Environmental Protection Agency, Water Supply Division (WH-450), Washington, D.C. 20460.