||Effects of Environmental Conditions on Isoprene Emission from Live Oak.
Tingey, David T. ;
Evans, Rosemary ;
Gumpertz, Marcia ;
||National Heart, Lung, and Blood Inst., Bethesda, MD.
Oak trees ;
Carbon dioxide ;
Aliphatic hydrocarbons ;
Luminous intensity ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||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.
||Pub. in Planta 152, p565-570 1981. Prepared in cooperation with Northrop Services, Inc., Corvallis, OR.
|NTIS Title Notes
||Reprint: Effects of Environmental Conditions on Isoprene Emission from Live Oak.
|PUB Date Free Form
||27 May 81
||6C; 6A; 57C; 57B
||PC A02/MF A01