AEM
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Belser, L. W.
Right arrow Articles by Mays, E. L.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Belser, L. W.
Right arrow Articles by Mays, E. L.
Agricola
Right arrow Articles by Belser, L. W.
Right arrow Articles by Mays, E. L.

 Previous Article  |  Next Article 

Appl Environ Microbiol. 1982 April; 43(4): 945-948

Use of Nitrifier Activity Measurements To Estimate the Efficiency of Viable Nitrifier Counts in Soils and Sediments

L. W. Belser and E. L. Mays

Cawthron Institute, Nelson, New Zealand

ABSTRACT

A procedure for estimating the efficiency of the most-probable number (MPN) technique for counting ammonium-oxidizing bacteria was tested on sediments and soils collected from Delaware Inlet, Nelson, New Zealand. The procedure involved estimating the nitrifier populations required to produce observed activities and comparing these estimates with the MPN-countable populations. MPN counts ranged between 0.15 x 103 to 3.0 x 103 cells g–1 in sediments and between 4.4 x 103 to 19 x 103 cells g–1 in soils. These counts were only 0.1 to 5.0% of the estimated populations that would be required to produce the observed activity. Similar efficiency calculations were made for data already in the literature, and these calculations gave much higher percentages. Thus, we concluded that for the soils and sediments we studied, the MPN counting technique greatly underestimated the populations present and that the efficiency calculation could be used as a counting efficiency index.

Appl Environ Microbiol. 1982 April; 43(4): 945-948




This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. Microbiol. Mol. Biol. Rev. Eukaryot. Cell All ASM Journals

Copyright © 1982 by the American Society for Microbiology. All rights reserved.