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Appl Environ Microbiol. 1968 November; 16(11): 1646-1649
Copyright © 1968 American Society for Microbiology. All Rights Reserved.

Enumeration of Autotrophic Ammonium-oxidizing Bacteria in Marine Waters by a Direct Method

M. S. Finstein

Department of Environmental Sciences, College of Agriculture and Environmental Science, Rutgers, the State University, New Brunswick, New Jersey 08903

ABSTRACT

A membrane filter method was developed for enumerating, in mixed populations, autotrophic nitrifying bacteria which transform ammonium to nitrite. It gave counts in good agreement with estimates obtained by using a most-probable-number procedure. Compared to the most-probable-number procedure, the membrane method is convenient and precise. A means of extending the sensitivity of the membrane method is presented.

Appl Environ Microbiol. 1968 November; 16(11): 1646-1649
Copyright © 1968 American Society for Microbiology. All Rights Reserved.





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Copyright © 1968 by the American Society for Microbiology. All rights reserved.