- HW Polley, HB Johnson, HS Mayeux, CR Tischler. Are some of the recent changes in grassland communities
a response to rising CO 2 concentrations? In: GW Koch, HA Mooney, eds. Carbon Dioxide and Terrestrial
Ecosystems. New York: Academic Press, 1996, pp 177–195. - WD Bowman, KT Hubick, S von Caemmerer, GD Farquhar. Short-term changes in leaf carbon isotope
discrimination in salt- and water-stress C 4 grasses. Plant Physiol 90:162–166, 1989. - SC Wong, CB Osmond. Elevated atmospheric partial pressure of CO 2 and plant growth. III. Interactions
betweenTriticum aestivum(C 3 ) and Echinochloa frumentacea(C 4 ) during growth in mixed culture under
different CO 2 , N nutrition and irradiance treatments, with emphasis on below-ground responses estimated
using the ^13 C value of root biomass. Aust J Plant Physiol 18:137–152, 1991. - SD Smith, BR Strain, TD Sharkey. Effects of CO 2 enrichment on four Great Basin grasses. Func Ecol
1:139–143, 1987. - KP Hogan, AP Smith, LH Ziska. Potential effects of elevated CO 2 and changes in temperature on tropical
plants. Plant Cell Environ 14:763–778, 1991. - SB Idso, BA Kimball, MG Anderson, SR Szarek. Growth response of a succulent plant, Agave vilmoriniana,
to elevated CO 2. Plant Physiol 80:796–797, 1986. - SR Szarek, PA Holthe, IP Ting. Minor physiological response to elevated CO 2 by the CAM plant Agave
vilmoriniana. Plant Physiol 83:938–940, 1987. - CB Osmond, O Bjorkman. Pathways of CO 2 fixation in the CAM plant Kalanchoe daigremontiana. II. Effects
of O 2 and CO 2 concentration on light and dark CO 2 fixation. Aust J Plant Physiol 2:155–162, 1975. - JAM Holtum, MH O’Leary, CB Osmond. Effect of varying CO 2 partial pressure on photosynthesis and on
carbon isotope composition of carbon-4 of malate from the Crassulacean acid metabolism plant Kalanchoe
daigremontianaHamet et Perr. Plant Physiol 71:602–609, 1983. - PS Nobel, TL Hartsock. Short-term and long-term responses of Crassulacean acid metabolism plants to
elevated CO 2. Plant Physiol 82:604–606, 1986. - AA Israel, PS Nobel. Activities of carboxylating enzymes in the CAM species Opuntia ficus-indicagrown
under current and elevated CO 2 concentrations. Photosynth Res 40:223–229, 1994. - N Wang, PS Nobel. Doubling the CO 2 concentration enhanced the activity of carbohydrate-metabolism en-
zymes, source carbohydrate production, photoassimilate transport, and sink strength for Opuntia ficus-indica.
Plant Physiol 110:893–902, 1996. - J Berry, O Bjorkman. Photosynthetic response and adaptation to temperature in higher plants. Annu Rev Plant
Physiol 31:491–543, 1980. - S Falk, DP Maxwell, DE Laudenbach, NPA Huner. Photosynthetic adjustment to temperature. In: NR Baker,
ed. Photosynthesis and the Environment. Dordrecht: Kluwer Academic Publishers, 1996, pp 367–385. - RC Leegood, GE Edwards. Carbon metabolism and photorespiration: Temperature dependence in relation to
other environmental factors. In: NR Baker, ed. Photosynthesis and the Environment. Dordrecht: Kluwer
Academic Publishers, 1996, pp 191–221. - SP Long. Modification of the response of photosynthetic productivity to rising temperature by atmospheric
CO 2 concentrations: Has its importance been underestimated? Plant Cell Environ 14:729–739, 1991. - MUF Kirschbaum. The sensitivity of C 3 photosynthesis to increasing CO 2 concentration: A theoretical analy-
sis of its dependence on temperature and background CO 2 concentration. Plant Cell Environ 17:747–754,
- J Kobza, GE Edwards. Influences of leaf temperature on photosynthetic carbon metabolism in wheat. Plant
Physiol 83:69–74, 1987. - AS Holaday, W Martindale, R Alred, AL Brooks, RC Leegood. Changes in activities of enzymes of carbon
metabolism in leaves during exposure of plants to low temperature. Plant Physiol 98:1105–1114, 1992. - DB Jordan, WL Ogren. The CO 2 /O 2 specificity of ribulose 1,5-bisphosphate carboxylase/oxygenase. Planta
161:308–313, 1984. - A Brooks, GD Farquhar. Effect of temperature on the CO 2 /O 2 specificity of ribulose-1,5-bisphosphate
carboxylase/oxygenase and the rate of respiration in the light. Planta 165:397–406, 1985. - JT Baker, LH Allen Jr, KJ Boote. Temperature effects on rice at elevated CO 2 concentration. J Exp Bot
43:959–964, 1992. - JT Baker, LH Allen Jr. Contrasting crop species responses to CO 2 and temperature: Rice, soybean and citrus.
Vegetatio 104/105:239–260, 1993. - LH Allen Jr, JT Baker, SL Albrecht, KJ Boote, D Pan, JCV Vu. Carbon dioxide and temperature effects on
rice. In: S Peng, KT Ingram, HU Neue, LH Ziska, eds. Climate Change and Rice. Berlin: Springer-Verlag,
1995, pp 258–277. - JT Baker, LH Allen Jr, KJ Boote, P Jones, JW Jones. Response of soybean to air temperature and carbon
dioxide concentration. Crop Sci 29:98–105, 1989. - RAC Mitchell, VJ Mitchell, SP Driscoll, J Franklin, DW Lawlor. Effects of increased CO 2 concentration and
temperature on growth and yield of winter wheat at two levels of nitrogen application. Plant Cell Environ
16:521–529, 1993. - WJS Downton, WJR Grant, BR Loveys. Carbon dioxide enrichment increases yield of Valencia orange. Aust
J Plant Physiol 14:493–501, 1987.
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