Abstract
We compared flavonoids in green, mature, and senescing flag leaves of wheat grown under ambient (AC - 370 μmol mol-1) and elevated (EC - 550 μmol mol-1) concentrations of CO2 in a FACE (Free Air CO2 Enrichment) system. The concentrations of flag leaf flavonoids (e.g., isoorientin and tricin) decreased to one third in mature leaves, and the majoritary isoorientin almost disappeared in senescing leaves. Flavonoid concentrations increased in green well-developed flag leaves under EC (46 % isoorientin and 55 % tricin), whereas the differences disappeared in mature and senescing flag leaves. Predictions of changes in litter phenolic concentrations and their effects on decomposition rates under EC based on changes in green leaves need to be revised.
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References
Blume, D.E., McClure, J.W.: Developmental changes in flavonoids and enzyme activities of primary leaves from field-grown barley.-Z. Pflanzenphysiol. 95: 121–128, 1979.
Bryant, J.P., Chapin, F.S., III, Klein, D.R.: Carbon/nutrient balance of boreal plants in relation to vertebrate herbivory.-Oikos 40: 357–368, 1983.
Estiarte, M., Peñuelas, J.: Excess carbon: its role in defense and storage functions.-Orsis 14: 159–203, 1999.
Estiarte, M., Peñuelas, J., Kimball, B., Hendrix, D.I., Pinter, P., Jr., Wall, G., Lamorte, R., Hunsaker, D.: Free-air CO2 enrichment of wheat: leaf flavonoid concentration throughout the growth cycle.-Physiol. Plant. 105: 423–433, 1999.
Hendrix, D.L., Grange, R.I.: Carbon partitioning and export from mature cotton leaves.-Plant Physiol. 95: 228–233, 1991.
Herms, D.A., Mattson, W.J.: The dilemma of plants: To grow or defend.-Quart. Rev. Biol. 67: 283–335, 1992.
Kimball, B.A., Pinter, P.J., Garcia, R.L., LaMorte, R.L., Wall, G.W., Hunsaker, D.J., Wechsung, G., Wechsung, F., Kartschall, T.: Productivity and water use of wheat under free-air CO2 enrichment.-Global Change Biol. 1: 429–442, 1995.
Lambers, H.: Rising CO2, secondary plant metabolism, plant herbivore interactions and litter decomposition. Theoretical considerations.-Vegetatio 104/105: 263–271, 1993.
Lees, G.L., Gruber, M.Y., Suttill, N.H.: Condensed tannins in sainfoin. II. Occurrence and changes during leaf development.-Can. J. Bot. 73: 1540–1547, 1995.
Lewin, K.F., Hendrey, G.R., Nagy, J., LaMorte, R.L.: Design and application of a free-air carbon dioxide enrichment facility.-Agr. Forest Meteorol. 70: 15–29, 1994.
Liu, L., Gitz, D.C., III, McClure, J.W.: Effects of UV-B on flavonoids, ferulic acid, growth and photosynthesis in barley primary leaves.-Physiol. Plant. 93: 725–733, 1995.
O'Neill, G., Norby, R.J.: Litter quality and decomposition rates of foliar litter produced under CO2 enrichment.-In: Koch, G.W., Mooney, H.A. (ed.): Carbon Dioxide and Terrestrial Ecosystems. Pp. 87–103. Academic Press, San Diego 1996.
Norby, R.J., Cotrufo, M.F.: A question of litter quality.-Nature 396: 17–18, 1998.
Northup, R.R., Yu, Z., Dahlgren, R.A., Vogt, K.A.: Polyphenol control of nitrogen release from pine litter.-Nature 377: 227–229, 1995.
Palm, C.A., Sanchez, P.A.: Decomposition and nutrient release patterns of the leaves of three tropical legumes.-Biotropica 22: 330–338, 1990.
Palm, C.A., Sanchez, P.A.: Nitrogen release from the leaves of some tropical legumes as affected by their lignin and polyphenolic contents.-Soil Biol. Biochem. 23: 83–88, 1991.
Peñuelas, J., Estiarte, M.: Can elevated CO2 affect secondary metabolism and ecosystem function?-Trends Ecol. Evol. 13: 20–24, 1998.
Peñuelas, J., Estiarte, M., Kimball, B.A., Idso, S.B., LaMorte, R.I., Pinter, P.J., Jr., Wall, G.W., Garcia, R.I., Hendrix, D.L.: Variety of responses of plant phenolic concentration to CO2 enrichment.-J. exp. Bot. 47: 1463–1467, 1996.
Peñuelas, J., Estiarte, M. Llusià, J.: Carbon-based secondary compounds at elevated CO2.-Photosynthetica 33: 313–316, 1997.
Pinter, P.J., Jr., Kimball, B.A., Garcia, R.L., Wall, G.W., Hunsaker, D.J., LaMorte, R.L.: Free-air CO2 enrichment: responses of cotton and wheat crops.-In: Koch, G.W., Mooney, H.A. (ed.): Carbon Dioxide and Terrestrial Ecosystems. Pp. 215–245. Academic Press, San Diego 1996.
Poorter, H., Van Berkel, Y., Baxter, R., Den Hertog, J., Dijkstra, P., Gifford, R.M., Griffin, K.L., Roumet, C., Roy, J., Wong, C.: The effect of elevated CO2 on the chemical composition and constructions costs of leaves of 27 C3 species.-Plant Cell Environ. 20: 472–482, 1997.
Popovici, G., Weissenböck, G.: Dynamics of C-glycosylflavones in primary leaves of Avena sativa L. grown under field conditions.-Z. Pflanzenphysiol. 82 S: 450–454, 1977.
Waterman, P.G., Mole, S.: Analysis of Phenolic Plant Metabolites.-Blackwell Scientific Publ., Oxford 1994.
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Peñuelas, J., Estiarte, M. & Kimball, B. Flavonoid Responses in Wheat Grown at Elevated CO2: Green Versus Senescent Leaves. Photosynthetica 37, 615–619 (2000). https://doi.org/10.1023/A:1007131827115
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DOI: https://doi.org/10.1023/A:1007131827115