References

Biogeosciences

1726-4189

Copernicus Publications

Göttingen, Germany

10.5194/bg-7-333-2010

A kinetic analysis of leaf uptake of COS and its relation to transpiration, photosynthesis and carbon isotope fractionation

Seibt

¹ Kesselmeier

² Sandoval-Soto

² ⁴ Kuhn

² ⁵ Berry

J. A.

Université Pierre et Marie Curie Paris 6, UMR BioEmco, Campus ParisAgroTech, 78850 Thiverval-Grignon, France

Max Planck Institute for Chemistry, Biogeochemistry Dept., Joh.-J.-Becher-Weg 27, 55128 Mainz, Germany

Carnegie Institution for Science, Department of Global Ecology, 260 Panama St., Stanford, CA 94305-1297, USA

now at: Fachhochschule Nordwestschweiz, Hochschule für Life Sciences, Institut für Ecopreneurship, Gründenstraße 40, 4132 Muttenz, Switzerland

now at: Agroscope Reckenholz-Tänikon Research Station ART, Reckenholzstraße 191, 8046 Zürich, Switzerland

European Commission

COSIRIS - Investigating the terrestrial carbon and water cycles with a multi-tracer approach (202835)

28 01 2010

7 1 333 341

2010

This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/

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The full text article is available as a PDF file from https://bg.copernicus.org/articles/7/333/2010/bg-7-333-2010.pdf

Carbonyl sulfide (COS) is an atmospheric trace gas that holds great promise for studies of terrestrial carbon and water exchange. In leaves, COS follows the same pathway as CO2 during photosynthesis. Both gases are taken up in enzyme reactions, making COS and CO2 uptake closely coupled at the leaf scale. The biological background of leaf COS uptake is a hydrolysis reaction catalyzed by the enzyme carbonic anhydrase. Based on this, we derive and test a simple kinetic model of leaf COS uptake, and relate COS to CO2 and water fluxes at the leaf scale. The equation was found to predict realistic leaf COS fluxes compared to observations from field and laboratory chambers. We confirm that COS uptake at the leaf level is directly linked to stomatal conductance. As a consequence, the ratio of normalized uptake rates (uptake rates divided by ambient mole fraction) for leaf COS and CO2 fluxes can provide an estimate of Ci/Ca, the ratio of intercellular to atmospheric CO2, an important plant gas exchange parameter that cannot be measured directly. The majority of published normalized COS to CO2 uptake ratios for leaf studies on a variety of species fall in the range of 1.5 to 4, corresponding to Ci/Ca ratios of 0.5 to 0.8. In addition, we utilize the coupling of Ci/Ca and photosynthetic 13C discrimination to derive an estimate of 2.8±0.3 for the global mean normalized uptake ratio. This corresponds to a global vegetation sink of COS in the order of 900±100 Gg S yr−1. COS can now be implemented in the same model framework as CO2 and water vapour. Atmospheric COS measurements can then provide independent constraints on CO2 and water cycles at ecosystem, regional and global scales.

References 1

Andreae, M. O. and Crutzen, P. J.: Atmospheric aerosols –- Biogeochemical sources and role in atmospheric chemistry, Science, 276, 1052–1058, 1997.

Bird, R. B., Stewart, W. E., and Lightfoot, E. N.: Transport Phenomena (Revised Second Edition), John Wiley and Sons, New York, 2007.

Burnell J. N. and Hatch, M. D.: Low bundle sheath carbonic anhydrase is apparently essential for effective C4 pathway operation, Plant Physiol., 86, 1252–1256, 1988.

Campbell, J. E., Carmichael, G. R., Chai, T., Mena-Carrasco, M., Tang, Y., Blake, D. R., Blake, N. J., Vay, S. A., Collatz, G. J., Baker, I., Berry, J. A., Montzka, S. A., Sweeney, C., Schnoor, J. L., and Stanier, C. O.: Photosynthetic control of atmospheric carbonyl sulfide during the growing season, Science, 322, 1085–1088, 2008.

Chin, M. and Davis, D. D.: Global sources and sinks of OCS and CS2 and their distribution, Global Biogeochem. Cy., 7, 321–337, 1993.

Cowan, I. R.: Stomatal behavior and environment. Adv. Bot. Res., 4, 117–228, 1977.

Craig, H.: The geochemistry of the stable carbon isotopes, Geochim. Cosmochim. Acta, 3, 53–92, 1953.

Crutzen, P. J.: The possible importance of CSO for the sulfate layer of the stratosphere, Geophys. Res. Lett., 3, 73–76, 1976.

Farquhar, G. D. and Richards, R. A.: Isotopic composition of plant carbon correlates with water use efficiency of wheat genotypes, Austr. J. Plant Physiol., 11, 539–552, 1984.

Farquhar, G. D., OLeary, M. H., and Berry, J. A.: On the relationship between carbon isotope discrimination and the intercellular carbon dioxide concentration in leaves, Austr. J. Plant Physiol., 9, 121–137, 1982.

Hoffmann, U.: Der Austausch von reduzierten Schwefel-Verbindungen zwischen Vegetation und Atmosphäre: Interpretation von Versuchen im Freiland in Verbindung mit mechanistischen Experimenten im Labor, Ph.D. thesis, Univ. Mainz, Germany, 1993.

Huber, B.: Austausch flüchtiger Schwefelverbindungen in land- und forstwirschaftlichen Ökosystemen, Ph.D. thesis, Techn. Univ. München, Germany, 1993.

Kesselmeier, J. and Merk, L.: Exchange of carbonyl sulfide (COS) between agricultural plants and the atmosphere: Studies on the deposition of COS to peas, corn and rapeseed, Biogeochemistry, 23, 47–59, 1993.

Kesselmeier, J., Meixner, F. X., Hofmann, U., Ajavon, A., Leimbach, S., and Andreae, M. O.: Reduced sulfur compound exchange between the atmosphere and tropical tree species in southern Cameroon, Biogeochemistry, 23, 23–45, 1993.

Kesselmeier, J., Teusch, N., and Kuhn, U.: Controlling variables for the uptake of atmospheric carbonyl sulfide (COS) by soil, J. Geophys. Res.-Atmos., 104(D9), 11577–11584, 1999.

Kettle, A. J., Kuhn, U., von Hobe, M., Kesselmeier, J., and Andreae, M. O.: The global budget of atmospheric carbonyl sulfide: Temporal and spatial modulation of the dominant sources and sinks, J. Geophys. Res., 107(D22), 4658, https://doi.org/10.1029/2002JD002187, 2002.

Kuhn, U., Wolf, A., Ammann, C., Meixner, F. X., Andreae, M. O., and Kesselmeier, J.: Carbonyl sulfide exchange on an ecosystem scale: Soil represents a dominant sink for atmospheric COS, Atmos. Environ., 33, 995–1008, 1999.

Lide, D. R. (ed.): CRC Handbook of Chemistry and Physics online (89th ed.), CRC Press, USA, 2008.

Lloyd, J. and Farquhar, G. D.: 13C discrimination during CO2 assimilation by the terrestrial biosphere, Oecologia, 99, 201–215, 1994.

Massman, W. J.: A review of the molecular diffusivities of H2O, CO2, CH4, CO, O3, SO2, NH3, N2O, NO, and NO2 in air, O2 and N2 near STP, Atmos. Environm., 32, 1111–1127, 1998.

Montzka, S. A., Calvert P., Hall B. D., Elkins J. W., Conway T. J., Tans P. P., and Sweeney C.: On the global distribution, seasonality, and budget of atmospheric carbonyl sulfide (COS) and some similarities to CO2, J. Geophys. Res., 112, D09302, https://doi.org/10.1029/2006JD007665, 2007.

Notni, J., Schenk, S., Protoschill-Krebs, G., Kesselmeier, J., and Anders, E.: The missing link in COS metabolism: A model study on the reactivation of carbonic anhydrase from its hydrosulfide analogue, ChemBioChem, 8, 530–536, 2007.

Penman, H. L. and Schofield, R. K.: Some physical aspects of assimilation and transpiration, Symp. Soc. Exp. Biol., 5, 115–129, 1951.

Protoschill-Krebs, G., Wilhelm, C., and Kesselmeier, J.: Consumption of carbonyl sulfide by carbonic anhydrase (CA) isolated from \textitPisum sativum, Atmos. Environ., 30, 3151–3156, 1996.

Sandoval-Soto, L., Stanimirov, M., von Hobe, M., Schmitt, V., Valdes, J., Wild, A., and Kesselmeier, J.: Global uptake of carbonyl sulfide (COS) by terrestrial vegetation: Estimates corrected by deposition velocities normalized to the uptake of carbon dioxide (CO2), Biogeosciences, 2, 125–132, 2005.

Suntharalingam, P., Kettle, A. J., Montzka, S. M., and Jacob, D. J.: Global 3-D model analysis of the seasonal cycle of atmospheric carbonyl sulfide: Implications for terrestrial vegetation uptake, Geophys. Res. Lett., 35, L19801, https://doi.org/10.1029/2008GL034332, 2008.

Van Diest, H. and Kesselmeier, J.: Soil atmosphere exchange of carbonyl sulfide (COS) regulated by diffusivity depending on water-filled pore space, Biogeosciences, 5, 475–483, 2008.

von Hobe, M., Kenntner, T., Helleis, F. H., Sandoval-Soto, L., and Andreae, M. O.: Cryogenic trapping of carbonyl sulfide without using expendable cryogens, Anal. Chem., 72, 5513–5515, 2000.

Watts, S. F.: The mass budgets of carbonyl sulfide, dimethyl sulfide, carbon disulfide and hydrogen sulfide, Atmos. Environ., 34, 761–779, 2000.

Xu, X., Bingemer, H. G., and Schmidt, U.: The flux of carbonyl sulfide and carbon disulfide between the atmosphere and a spruce forest, Atmos. Chem. Phys., 2, 171–181, 2002.

Zhao, M., Heinsch, F. A., Nemani, R. R., Running, S. W.: Improvements of the MODIS terrestrial gross and net primary production global data set, Remote Sens. Environ., 95, 164–176, 2005.