Record Display for the EPA National Library Catalog


Main Title Biotransformation and chemical form of mercury in plants /
Author Gay, Don D.
Other Authors
Author Title of a Work
Ecological research series
EPA-600/3-76-082. United States.
CORP Author United States. Environmental Protection Agency. Office of Research and Development.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory, Monitoring Systems Research and Development Division ; For sale by the National Technical Information Service,
Year Published 1976
Report Number EPA-600/3-76-082
Stock Number PB-258 287
OCLC Number 02571154
ISBN pbk.
Subjects Biochemistry. ; Botanical chemistry. ; Mercury. ; Plant physiology. ; Biochemistry. ; Botanical chemistry. ; Mercury. ; Plant physiology.
Additional Subjects Biological chemistry ; Botanical chemistry ; Mercury ; Plant physiology ; Mercury organic compounds ; Plant chemistry ; Methylation ; Chemical reactions ; Biochemistry ; Plant metabolism ; Peas ; Vegetables ; Leguminous plants ; Absorption(Biology) ; Trace elements ; Air pollution effects(Plants) ; Pisum sativum
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-3-76-082 Headquarters Library/Washington,DC 03/31/2014
EJED  EPA 600/3-76-082 OCSPP Chemical Library/Washington,DC 01/01/1988
ESAD  EPA 600-3-76-082 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-258 287 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation iii, 9 p. : ill., graphs ; 28 cm.
The in vitro methylation of inorganic mercury has been demonstrated using an acetone precipitated protein fraction from Pisum sativum and S-adenosylmethionine as the methyl-donating compound. A time course of the enzymatic formation of methylmercury has shown that the maximum methylmercury concentration occurred after one hour of incubation of the substrates with the enzyme system. At all subsequent incubation times reduced concentrations of methylmercury in the reaction mixture were observed. When a time course for the in vivo methylation of inorganic mercury was done using an infiltration and incubation procedure, the maximum concentration of methylmercury was observed after 10 hours of incubation. All subsequent incubation periods produced lesser amounts of methylmercury. The results suggest that the methylmercury is an intermediate compound in the mercury pathway in peas (Pisum sativum).
Includes bibliographical references (p. 7-9). Item 431-I-11.