Record Display for the EPA National Library Catalog

RECORD NUMBER: 1135 OF 1176

OLS Field Name OLS Field Data
Main Title Uptake, Translocation and Release of Phosphorus by 'Elodea densa'.
Author Gabrielson, J. O. ; Perkins, M. A. ; Welch, E. B. ;
CORP Author Washington Univ., Seattle. Dept. of Civil Engineering.;Corvallis Environmental Research Lab., OR.
Year Published 1984
Report Number EPA-R-804458; EPA/600/J-84/071;
Stock Number PB84-232693
Additional Subjects Phosphorus ; Aquatic plants ; Plant nutrition ; Adsorption ; Photoperiodism ; Leakage ; Growth ; Plant tissues(Biology) ; Plant physiology ; Reprints ; Foreign technology ; Elodea densa ; Roots
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB84-232693 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 8p
Abstract
Short-term (16h) laboratory studies of 32p uptake by Elodea densa rooted in sediment demonstrated both foliar and root uptake, and that translocation occurred acropetally and basipetally. Root absorption is projected to provide 83-85% of total phosphorus uptake during 12-16th photoperiod days. Measured foliar uptake and excretion rates suggest that there would be no net leakage of phosphorus into the water by undamaged actively-growing E. densa. Foliar uptake decreased and root uptake increased in the dark relative to rates under light. (Copyright (c) Dr W. Junk Publishers, The Hague. Printed in the Netherlands.)