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E. Schulze, M. Caldwell (1995)
Ecophysiology of Photosynthesis
M. Stitt (1991)
Rising Co2 Levels and Their Potential Significance for Carbon Flow in Photosynthetic CellsPlant Cell and Environment, 14
D. Tissue, R. Thomas, B. Strain (1993)
Long‐term effects of elevated CO2 and nutrients on photosynthesis and rubisco in loblolly pine seedlingsPlant Cell and Environment, 16
Author Grime (1977)
Evidence for the Existence of Three Primary Strategies in Plants and Its Relevance to Ecological and Evolutionary TheoryThe American Naturalist, 111
G. Bowes (1996)
An overview of how rubisco and carbohydrate metabolism may be regulated at elevated atmospheric [CO2] and temperatureAgricultural and Food Science, 5
F. Woodward (1990)
From ecosystems to genes. The importance of shade toleranceTrends in Ecology and Evolution, 5
C. Field, H. Mooney (1986)
photosynthesis--nitrogen relationship in wild plants
W. Arp (1991)
Effects of source‐sink relations on photosynthetic acclimation to elevated CO2Plant Cell and Environment, 14
J. Oosten, D. Wilkins, R. Besford (1994)
Regulation of the expression of photosynthetic nuclear genes by CO2 is mimicked by regulation by carbohydrates: a mechanism for the acclimation of photosynthesis to high CO2?Plant Cell and Environment, 17
F. Woodward, T. Smith (1995)
Predictions and Measurements of the Maximum Photosynthetic Rate, Amax, at the Global Scale
E. Rastetter, G. Ågren, G. Shaver (1997)
RESPONSES OF N‐LIMITED ECOSYSTEMS TO INCREASED CO2: A BALANCED‐NUTRITION, COUPLED‐ELEMENT‐CYCLES MODELEcological Applications, 7
J. Oosten, D. Afif, P. Dizengremel (1992)
Long-term effects of a CO2 enriched atmosphere on enzymes of the primary carbon metabolism of spruce treesPlant Physiology and Biochemistry, 30
R. Hunt, D. Hand, M. Hannah, A. Neal (1993)
Further responses to CO2 enrichment in British herbaceous species.Functional Ecology, 7
M. Paul, S. Driscoll (1997)
Sugar repression of photosynthesis: the role of carbohydrates in signalling nitrogen deficiency through source:sink imbalancePlant Cell and Environment, 20
T. Givnish (1988)
On the economy of plant form and function.
D. Hilbert, A. Larigauderie, J. Reynolds (1991)
The Influence of Carbon Dioxide and Daily Photon-flux Density on Optimal Leaf Nitrogen Concentration and Root: Shoot RatioAnnals of Botany, 68
Jianhua Zhang, M. Lechowicz (1995)
Responses to CO2 Enrichment by Two Genotypes of Arabidopsis thaliana Differing in their Sensitivity to Nutrient AvailabilityAnnals of Botany, 75
F. Castri, H. Mooney (1973)
Mediterranean Type Ecosystems
P. Vitousek (1994)
Beyond Global Warming: Ecology and Global ChangeEcology, 75
J. Buysse, R. Merckx (1993)
An Improved Colorimetric Method to Quantify Sugar Content of Plant TissueJournal of Experimental Botany, 44
K. Idso, S. Idso (1994)
Plant responses to atmospheric CO2 enrichment in the face of environmental constraints: a review of the past 10 years' researchAgricultural and Forest Meteorology, 69
C. Moh (1970)
Phaseolus vulgaris L.Mutation Research, 10
C. Gimingham, F. Kruger, D. Mitchell, J. Jarvis (1983)
Mediterranean-Type Ecosystems: The Role of Nutrients
M. Richards, R. Cowling, W. Stock (1997)
Soil factors and competition as determinants of the distribution of six fynbos Proteaceae speciesOikos, 79
J. Lloyd, J. Grace, A. Miranda, P. Meir, S. Wong, H. Miranda, I. Wright, J. Gash, J. Mcintyre (1995)
A simple calibrated model of Amazon rainforest productivity based on leaf biochemical propertiesPlant Cell and Environment, 18
S. Wullschleger (1993)
Biochemical Limitations to Carbon Assimilation in C3 Plants—A Retrospective Analysis of the A/Ci Curves from 109 SpeciesJournal of Experimental Botany, 44
J. Moreno, W. Oechel (1995)
Global Change and Mediterranean-Type Ecosystems
Abstract Four South African Leucadendron congenerics with divergent soil N and P preferences were grown as juveniles at contrasting nutrient concentrations at ambient (350 µmol mol−1) and elevated (700 µmol mol−1) atmospheric CO2 levels. Photosynthetic parameters were related to leaf nutrient and carbohydrate status to reveal controls of carbon uptake rate. In all species, elevated CO2 depressed both the maximum Rubisco catalytic activity (Vc,max, by 19–44%) and maximum electron transport rate (Jmax, by 13–39%), indicating significant photosynthetic acclimation of both measures. Even so, all species had increased maximum light-saturated rate of net CO2 uptake (Amax) at the elevated growth CO2 level, due to higher intercellular CO2 concentration (ci). Leaf nitrogen concentration was central to photosynthetic performance, correlating with Amax, Vc,max and Jmax. Vc,max and Jmax were linearly co-correlated, revealing a relatively invariable Jmax:Vc,max ratio, probably due to N resource optimization between light harvesting (RuBP regeneration) and carboxylation. Leaf total non-structural carbohydrate concentration (primarily starch) increased in high CO2, and was correlated with the reduction in Vc,max and Jmax. Apparent feedback control of Vc,max and Jmax was thus surprisingly consistent across all species, and may regulate carbon exchange in response to end-product fluctuation. If so, elevated CO2 may have emulated an excess end-product condition, triggering both Vc,max and Jmax down-regulation. In Leucadendron, a general physiological mechanism seems to control excess carbohydrate formation, and photosynthetic responsiveness to elevated CO2, independently of genotype and nutrient concentration. This mechanism may underlie photosynthetic acclimation to source:sink imbalances resulting from such diverse conditions as elevated CO2, low sink strength, low carbohydrate export, and nutrient limitation. Carbohydrate, elevated CO2, nitrogen, photosynthesis, Proteaceae This content is only available as a PDF. © Oxford University Press 1999 © Oxford University Press 1999
Journal of Experimental Botany – Oxford University Press
Published: Apr 1, 1999
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