OLS : Record


Main Title Effects of Environmental Conditions on Isoprene Emission from Live Oak.
Author Tingey, David T.; Evans, Rosemary; Gumpertz, Marcia;
CORP Author National Heart, Lung, and Blood Inst., Bethesda, MD.
Year Published 1981
Report Number EPA-600/J-82-493;
Stock Number PB82-158130
Subjects Isoprene; Biosynthesis; Oak trees; Stress(Physiology); Carbon dioxide; Aliphatic hydrocarbons; Photosynthesis; Moisture; Luminous intensity; Reprints; Quercus
Library   Call Number Additional Info Location Date Modified
NTIS PB82-158130 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 Live-oak plants (Quercus virginia) were subjected to various levels of CO2, water stress or photosynthetic photon flux density to test the hypothesis that isoprene biosynthesis occurred only under conditions of restricted CO2 availability. Isoprene emission increases as the ambient CO2 concentration decreased, independent of the amount of time that plants had photosynthesized at ambient CO2 levels. When plants are water-stressed over a 4-d period photosynthesis and leaf conductance decreased 98 and 94%, respectively, while isoprene emissions remained constant. These data indicate that isoprene is a normal plant metabolite.
Supplementary Notes Pub. in Planta 152, p565-570 1981. Prepared in cooperation with Northrop Services, Inc., Corvallis, OR.
NTIS Title Notes Journal article.
Title Annotations Reprint: Effects of Environmental Conditions on Isoprene Emission from Live Oak.
PUB Date Free Form 27 May 81
Category Codes 6C; 6A; 57C; 57B
NTIS Prices PC A02/MF A01
Primary Description 600/02
Document Type NT
Control Number 323810993
Cataloging Source NTIS/MT
Origin NTIS
Type CAT