Main Title |
Effects of Temperature, pH, Salinity, and Inorganic Nitrogen on the Rate of Ammonium Oxidation by Nitrifiers Isolated from Wetland Environments. |
Author |
Jones, R. D. ;
Hood, Mary A. ;
|
CORP Author |
University of West Florida, Pensacola.;Environmental Research Lab., Gulf Breeze, FL. |
Year Published |
1980 |
Report Number |
EPA-R-804976; EPA-600/J-80-392 ; ERL.GB-0203 |
Stock Number |
PB82-207747 |
Additional Subjects |
Bacteria ;
Ammonium compounds ;
Water pollution ;
Temperature ;
Salinity ;
pH ;
Fresh water ;
Swamps ;
Nitrogen ;
Oxidizers ;
Reprints ;
Nitrosomonas
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB82-207747 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
11p |
Abstract |
Ammonium-oxidizing bacteria were examined in two wetland environments, a freshwater marsh and an estuarine bay, during a 2-year period. Two predominant types were consistently isolated, one from each environment. Both isolates were identified as species of Nitrosomonas. Using a closed culture, high cell density assay, the effects of temperature, pH, salinity, Na+, K+, nitrite, nitrate, and ammonium concentrations on ammonium oxidation were determined. Maximum activity was observed for the freshwater isolate at 35C, pH 8.5, salinities of 0.3 to 0.5% Na+ and K+, and ammonium concentrations greater than 0.5 g/l. For the estuarine isolate, maximum activity was observed at 40C, pH 8.0, salinities of 0.5 to 1.0%, 1.0% Na+ and K+, and 0.2 g/l ammonium. The estuarine isolate had a Na+ requirement which could be partially substituted by the K+, suggesting that the organism is a true estuarine bacterium. Nitrite inhibited both isolates at concentrations greater than 5 mg/l, whereas nitrate had no significant effect on either isolate. |
Supplementary Notes |
Pub. in Microbial Ecology 6, p339-347 1980. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Effects of Temperature, pH, Salinity, and Inorganic Nitrogen on the Rate of Ammonium Oxidation by Nitrifiers Isolated from Wetland Environments. |
PUB Date Free Form |
1980 |
Category Codes |
6M; 6F; 57K; 68D |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/04 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323815181 |
Origin |
NTIS |
Type |
CAT |