Effect of elevated CO[sub 2] on photosynthetic plasticity to growth light conditions in tree species of contrasting shade tolerance
Conference
·
· Bulletin of the Ecological Society of America; (United States)
OSTI ID:7016323
- Michigan State Univ., East Lansing, MI (United States)
The purpose of this study was to test the hypothesis that elevated atmospheric CO[sub 2] will induce a shift in photosynthetic light response (A/Q) that varies directly with species' intrinsic shade tolerance. Light saturated A (A[sub sat]) was highest under elevated CO[sub 2] (714 ppm) in sun plants of Betula papyrifera (intolerant) and Quercus rubra (intermediate) and in shade plants of Acer rubrum (tolerant). Acer exhibited the greatest CO[sub 2]-induced shift in A/Q plasticity to growth light conditions, including leaf absorbtivity, light compensation point ([Gamma]) and quantum yield ([phi]). Shade plants of Betula exhibited no shift in A/Q with elevated CO[sub 2] whereas Quercus and Acer had lower [Gamma] and higher A[sub sat]. [phi] increased with CO[sub 2] in shade plants of Acer and sun plants of Quercus. These results suggest that changes in carbon balance of understory seedlings may differentially shift with increasing CO[sub 2] depending upon species plasticity to sun versus shade conditions.
- OSTI ID:
- 7016323
- Report Number(s):
- CONF-940894--
- Conference Information:
- Journal Name: Bulletin of the Ecological Society of America; (United States) Journal Volume: 75:2
- Country of Publication:
- United States
- Language:
- English
Similar Records
The allometry of root production and loss in seedlings of Acer rubrum (aceraceae) and betula papyrifera (Betulacaae): Implications for root dynamics in elevated CO{sub 2}
The allometry of root production and root loss in Acer rubrum and Betula papyrifera seedings is not affected by elevated atmospheric CO{sub 2}
Tree seedling growth enhancement in a high CO[sub 2] environment declines over three years
Journal Article
·
Wed May 01 00:00:00 EDT 1996
· American Journal of Botany
·
OSTI ID:441136
The allometry of root production and root loss in Acer rubrum and Betula papyrifera seedings is not affected by elevated atmospheric CO{sub 2}
Journal Article
·
Fri Sep 01 00:00:00 EDT 1995
· Bulletin of the Ecological Society of America
·
OSTI ID:107089
Tree seedling growth enhancement in a high CO[sub 2] environment declines over three years
Conference
·
Tue Jun 01 00:00:00 EDT 1993
· Bulletin of the Ecological Society of America; (United States)
·
OSTI ID:6044198
Related Subjects
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL ADAPTATION
BIOLOGICAL EFFECTS
BIRCHES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
ECOLOGICAL CONCENTRATION
MAGNOLIOPHYTA
MAGNOLIOPSIDA
MAPLES
OAKS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PLANTS
RADIATIONS
SOLAR RADIATION
STELLAR RADIATION
SYNTHESIS
TOLERANCE
TREES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL ADAPTATION
BIOLOGICAL EFFECTS
BIRCHES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
ECOLOGICAL CONCENTRATION
MAGNOLIOPHYTA
MAGNOLIOPSIDA
MAPLES
OAKS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PLANTS
RADIATIONS
SOLAR RADIATION
STELLAR RADIATION
SYNTHESIS
TOLERANCE
TREES