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Carbon isotope ratios are correlated with irradiance levels in the Panamanian orchid Catasetum viridiflavum

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Summary

Carbon isotope composition (13C/12C) in leaves of the Panamanian epiphytic orchid Catasetum viridiflavum were measured on individuals growing in canopies over a water surface to distinguish the effects of a change in source CO2 and humidity from those of intercellular CO2 concentration in determining isotopic composition. Carbon isotope ratios were observed to vary by over 4 in response to changes in total daily photon flux (PFD, 400–700 nm). Changes in isotopic composition of source CO2 or changes in humidity were not likely to have played a role in determining leaf isotopic composition. Observed changed in carbon isotope discrimination (Δ) of leaves experiencing different light levels ranged from 17 to 21. Because leaf nitrogen contents were similar among all orchids, we suggest that the carbon isotope discrimination data indicated that stomatal limitation to photosynthesis increased with increasing irradiance.

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References

  • Becker P (1987) Monthly average solar radiation in Panama — daily and hourly relationships between direct and global insolation. Solar Energy 39:445–453

    Article  Google Scholar 

  • Becker P, Erhart DW, Smith AP (1989) Analysis of forest light environments. Part I. Computerized estimation of solar radiation from hemispherical canopy photographs. Agric Forest Meteorol 44:217–232

    Article  Google Scholar 

  • Benzing DH, Bent A, Moscow D, Peterson G, and Renfrow A (1982) Functional correlates of deciduousness in Catasetum integerrimum (Orchidaceae). Selbyana 7:1–9

    Google Scholar 

  • Ehleringer JR, Björkman O (1977) Quantum yields for CO2 uptake in C3 and C4 plants: dependence on temperature, carbon dioxide, and oxygen concentration. Plant Physiol 59:86–90

    Article  PubMed  CAS  Google Scholar 

  • Ehleringer JR, Field CB, Lin ZF, Kuo CY (1986) Leaf carbon isotope ratio and mineral composition in subtropical plants along an irradiance cline. Oecologia 70:520–526

    Article  Google Scholar 

  • Ehleringer JR, Lin ZF, Field CB, Sun GC, Kuo CY (1987) Leaf carbon isotope ratios of plants from a subtropical monsoon forest. Oecologia 72:109–114

    Article  Google Scholar 

  • Evans JR (1989) Photosynthesis and nitrogen relationships in leaves of C3 plants. Oecologia 78:9–19

    Article  Google Scholar 

  • Farquhar GD, Ball MC, von Caemmerer S, Roksandic Z (1982) Effect of salinity and humidity on δ13C value of halophytes-evidence for diffusional isotope fractionation determined by the ratio of intercellular/atmospheric partial pressure of CO2 under different environmental conditions. Oecologia 52:121–124

    Article  Google Scholar 

  • Farquhar GD, O'Leary MH, Berry JA (1982) On the relationship between carbon isotope discrimination and intercellular carbon dioxide concentration in leaves. Aust J Plant Physiol 9:121–137

    Article  CAS  Google Scholar 

  • Farquhar GD, Ehleringer JR, Hubick KT (1989) Carbon isotope discrimination and photosynthesis. Ann Rev Plant Physiol 40:503–537

    Article  CAS  Google Scholar 

  • Farquhar GD, Richards RA (1984) Isotopic composition of plant carbon correlates with water-use efficiency of wheat genotypes. Aust J Plant Physiol 11:539–552

    Article  CAS  Google Scholar 

  • Francey RJ, Gifford RM, Sharkey TD, Wier B (1985) Physiological influences on carbon isotope discrimination in huon pine (Lagarostrobos franklinii). Oecologia 66:211–218

    Google Scholar 

  • Guy RD, Reid DM, Krouse HR (1980) Shifts in carbon isotope ratios of two C3 halophytes under natural and artificial conditions. Oecologia 44:241–247

    Article  Google Scholar 

  • Howell TA, Meek DW, Hatfield JL (1983) Relationship of photosynthetically active radiation to shortwave radiation in the San Joaquin Valley. Agric Meteorol 28:157–175

    Article  Google Scholar 

  • Kirschbaum MUF, Pearcy RW (1988) Gas exchange analysis of the relative importance of stomatal and biochemical factors in photosynthetic induction in Alocasia macrorrhiza. Plant Physiol 86:782–785

    Article  PubMed  CAS  Google Scholar 

  • Leigh EG Jr, Rand AS, Windsor DM, eds, (1982) The ecology of a tropical forest, seasonal rhythms and long-term changes. Smithsonian Institution Press, Washington, District of Columbia, USA

    Google Scholar 

  • Lemon E, Allen LH Jr, Muller L (1970) Carbon dioxide exchange of a tropical rain forest. BioScience 20:1054–1059

    Article  Google Scholar 

  • Martin B, Nienhuis J, King G, Schaefer A (1989) Restriction fragment length polymorphisms associated with water use efficiency in tomato. Science 243:1725–1728

    Article  PubMed  CAS  Google Scholar 

  • Masle J, Farquhar GD (1988) Effects of soil strength on the relation of water-use efficiency and growth to carbon isotope discrimination in wheat seedlings. Plant Physiol 86:32–38

    Article  PubMed  CAS  Google Scholar 

  • Medina E, Minchin P (1980) Stratification of δ13C values of leaves in Amazonian rain forests. Oecologia 45:377–378

    Article  Google Scholar 

  • Medina E, Montes G, Cuevas E, Roksandic Z (1986) Profiles of CO2 concentration of δ13C values in tropical rainforests of the upper Rio Negro Basin, Venezuela. J Trop Ecol 2:207–217

    Article  Google Scholar 

  • Mulkey SS (1986) Photosynthetic acclimation and water-use efficiency of three species of understory herbaceous bamboo (Gramineae) in Panama. Oecologia 70:514–519

    Article  Google Scholar 

  • Pearcy RW (1987) Photosynthetic gas exchange responses of Australian tropical forest trees in canopy, gap, and understory micro-environments. Funct Ecol 1:169–178

    Article  Google Scholar 

  • Rand AS, Rand WM (1982) Variation in rainfall on Barro Colorado Island. In: Leigh EG Jr, Rand AS, Windsor DM (eds), pp. 47–59. The ecology of a tropical forest, seasonal rhythms and long-term changes. Smithsonian Institution Press, Washington, District of Columbia, USA

    Google Scholar 

  • Rundel PW, Ehleringer JR, Nagy KA (1988) Stable Isotopes in Ecological Research. Springer Berlin Heidelberg New York

    Google Scholar 

  • Schleser GH, Jayasekera R (1985) 13C-variations of leaves in forests as an indication of reassimilated CO2 from the soil. Oecologia 65:536–542

    Article  Google Scholar 

  • Smith BN, Oliver J, McMillan C (1976) Influence of carbon source, oxygen concentration, light intensity and temperature on 13C/12C ratios for higher plants. Bot Gaz 137:99–104

    Article  CAS  Google Scholar 

  • Sternberg LSL, Mulkey SS, Wright SJ (1989) Ecological interpretation of leaf carbon isotope ratios: influence of respired carbon dioxide. Ecology 70:1317–1324

    Article  Google Scholar 

  • Vogel JC (1978) Recycling of carbon in a forest environment. Oecol Plant 13:89–94

    Google Scholar 

  • Winter K, Holtum JAM, Edwards GE, O'Leary M (1982) Effect of low relative humidity on δ13C in two C3 grasses and in Panicum milioides, a C3−C4 intermediate species. J Exp Bot 33:88–91

    Article  Google Scholar 

  • Zimmerman JK (1989) Evolutionary ecology of Catasetum viridiflavum, an orchid that changes sex. Ph.D. Dissertation, University of Utah, Salt Lake City UT, USA

  • Zimmerman JK, Roubik DW, Ackerman JD (1989) Asynchronous phenologies of a neotropical orchid and its euglossine bee pollinator. Ecology 70:1192–1195

    Article  Google Scholar 

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  1. Jess K. Zimmerman

    Present address: Smithsonian Environmental Research Center, 21037, Edgewater, MD, USA

Authors and Affiliations

  1. Department of Biology, University of Utah, 84112, Salt Lake City, UT, USA

    Jess K. Zimmerman & James R. Ehleringer

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  1. Jess K. Zimmerman
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  2. James R. Ehleringer
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Zimmerman, J.K., Ehleringer, J.R. Carbon isotope ratios are correlated with irradiance levels in the Panamanian orchid Catasetum viridiflavum . Oecologia 83, 247–249 (1990). https://doi.org/10.1007/BF00317759

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  • DOI: https://doi.org/10.1007/BF00317759

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