Abstract
We studied the responses of leaf gas exchange and growth to an increase in atmospheric CO2 concentration in four tropical deciduous species differing in carbon fixation metabolism: Alternanthera crucis, C3-C4; Ipomoea carnea, C3; Jatropha gossypifolia, C3; and Talinum triangulare, inducible-CAM. In the first stage, plants were grown in one open-top chamber at a CO2 concentration of 560±40 μmol mol-1 (EC), one ambient CO2 concentration chamber (AC), and one unenclosed plot (U). In the second stage, plants were grown in five EC chambers (CO2 concentration = 680±30 μmol mol-1), five AC chambers, and five unenclosed plots. During the first weeks under EC in the first stage, plants of all the species had a very marked increase in their maximal net photosynthetic rates (P max) of 3.5 times on average; this stimulatory effect was maintained for 11-15 weeks, rates dampening afterward to values still higher than controls for 37 weeks. After a suspension of CO2 enrichment for 6 weeks, an increase in P max of EC plants over the controls was found in plants of all the species until week 82 of the experiment. Stomatal conductance (g) showed no response to EC. Carboxylation efficiency decreased in all the species under EC
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Arp, W.J., Drake, B.G.: Increased photosynthetic capacity of Scirpus olneyi after 4 years of exposure to elevated CO2.-Plant Cell Environ. 14: 1003–1006, 1991.
Ashenden, T.W., Baxter, R., Rafarel, C.R.: An inexpensive method for exposing plants in the field to elevated concentrations of CO2.-Plant Cell Environ. 15: 365–372, 1992.
Besford, R.T., Ludwig, L.J., Withers, A.C.: The greenhouse effect: Acclimation of tomato plants growing in high CO2, photosynthesis and ribulose-1,5-bisphosphate carboxylase protein.-J. exp. Bot. 41: 925–931, 1990.
Drake, B.G., González-Meler, M.A., Long, S.P.: More efficient plants: a consequence of rising atmospheric CO2?-Annu. Rev. Plant Physiol. Plant mol. Biol. 48: 609–639, 1997.
Erikson, J.: The Greenhouse Effect. Tomorrow's Disaster Today.-McGraw-Hill, New York 1992.
Gunderson, C.A., Norby, R.J., Wullschleger, S.D.: Foliar gas exchange responses of two deciduous hardwoods during 3 years of growth in elevated CO2: no loss of photosynthetic enhancement.-Plant Cell Environ. 16: 797–807, 1993.
Gunderson, C.A., Wullschleger, S.D.: Photosynthetic acclimation in trees to rising atmospheric CO2: A broader perspective.-Photosynth. Res. 39: 369–388, 1994.
Herrera, A., Delgado, J., Paraguatey, I.: Occurrence of inducible crassulacean acid metabolism in leaves of Talinum triangulare (Portulacaceae).-J. exp. Bot. 42: 493–499, 1991.
Herrera, A., Tezara, W., Urich, R., Montes, G., Cuberos, M.: Mechanisms of drought tolerance in the C3 deciduous shrub, Ipomoea carnea.-Ecotrópicos 7: 35–47, 1994.
Hogan, K.P., Smith, A.P., Ziska, L.H.: Potential effects of elevated CO2 and changes in temperature on tropical plants.-Plant Cell Environ. 14: 763–778, 1991.
Jackson, R.B., Sala, O.E., Field, C.B., Mooney, H.A.: CO2 alters water use, carbon gain, and yield for the dominant species in a natural grassland.-Oecologia 98: 257–262, 1994.
Kennedy, R.A., Eastburn, J.L., Jensen, K.G.: C3-C4 photosynthesis in the genus Mollugo: Structure, physiology and evolution of intermediate characteristics.-Amer. J. Bot. 67: 1207–1217, 1980.
Kimball, B.A.: Carbon dioxide and agricultural yield: an assemblage and analysis of 430 prior observations.-Agron. J. 75: 779–789, 1983.
Körner, C., Arnone, J.A., III: Responses to elevated carbon dioxide in artificial tropical ecosystems.-Science 257: 1672–1675, 1992.
Metodiev, M., Demirevska-Képova, K.: Rubisco quantitation in leaves of different barley varieties by enzyme-linked immunoabsorbent assay.-J. exp. Bot. 4: 155–158, 1992.
Nijs, I., Impens, I., Behaeghe, T.: Effects of rising atmospheric carbon dioxide concentration on gas exchange and growth of perennial ryegrass.-Photosynthetica 22: 44–50, 1988.
Poorter, H.: Interspecific variation in the growth response of plants to an elevated ambient CO2 concentration.-Vegetatio 104/105: 77–97, 1993.
Rengifo, E.: [Effect of an Elevated CO2 Concentration on the Water Relations of the Tropical C4 Species, Alternanthera crucis.]-Licenciado Thesis. Universidad Central de Venezuela, Caracas 1997. [In Span.]
Scarascia-Mugnozza, G., De Angelis, P., Matteucci, G., Valentini, R.: Long-term exposure to elevated [CO2] in a natural Quercus ilex L. community: net photosynthesis and photochemical efficiency of PSII at different levels of water stress.-Plant Cell Environ. 19: 643–654, 1996.
Tezara, W., Fernández, M.D., Donoso, C., Herrera, A.: Seasonal changes in photosynthesis and stomatal conductance of five plant species from a semiarid ecosystem.-Photosynthetica 35: 399–410, 1998.
Tschaplinski, T.J., Stewart, D.B., Hanson, P.J., Norby, R.J.: Interaction between drought and elevated CO2 on growth and gas exchange of seedlings of three deciduous tree species.-New Phytol. 129: 63–71, 1995.
Tuba, Z., Szente, K., Nagy, Z., Csintalan, Z., Koch, J.: Responses of CO2 assimilation, transpiration and water use efficiency to long-term elevated CO2 in perennial C3 xeric loess steppe species.-J. Plant Physiol. 148: 356–361, 1996.
Woodward, F.I., Thompson, G.B., McKee, I.F.: The effects of elevated concentrations of carbon dioxide on individual plants, populations, communities and ecosystems.-Ann. Bot. 67(Suppl. 1): 23–28, 1991.
Wulff, R.D., Strain, B.R.: Effects of CO2 enrichment on growth and photosynthesis in Desmodium paniculatum.-Can. J. Bot. 60: 1084–1091, 1982.
Ziska, L.H., Bunce, J.A.: Influence of increasing carbon dioxide concentration on the photosynthetic and growth stimulation of selected C4 crops and weeds.-Photosynth. Res. 54: 199–208, 1997.
Ziska, L.H., Hogan, K.P., Smith, A.P., Drake, B.G.: Growth and photosynthetic response of nine tropical species with long-term exposure to elevated carbon dioxide.-Oecologia 86: 383–389, 1991.
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Fernández, M., Pieters, A., Azkue, M. et al. Photosynthesis in Plants of Four Tropical Species Growing under Elevated CO2 . Photosynthetica 37, 587–599 (2000). https://doi.org/10.1023/A:1007175609368
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DOI: https://doi.org/10.1023/A:1007175609368