Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Characterization of Unclassified Nonfermentative Gram Negative Bacteria in Drinking Water.
Author Spino, Donald F. ;
CORP Author Municipal Environmental Research Lab., Cincinnati, OH.
Year Published 1983
Report Number EPA-600/D-83-003;
Stock Number PB83-152165
Additional Subjects Meetings ; Bacteria ; Potable water ; Identifying ; Enzymes ; Culture media ; Drinking water
Library Call Number Additional Info Location Last
NTIS  PB83-152165 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 27p
The group of bacteria most frequently encountered in water distribution systems consists of nonfermentative gram negative rods. Only a small percentage of these bacteria are identifiable using commercially prepared kits or other identification keys because many isolates fail to grow in conventional media used for biochemical characterization. In this study, modified base media were developed and used with specific substrates to detect enzymatic activity. The use of the modified base media combined with a lower incubation temperature allowed expression of increased enzymatic activity by many of the organisms. Although this permitted the characterization of the majority of these organisms, exact identification was unsuccessful since these organisms do not fit descriptions of known species found in current taxonomic schema.