Articles | Volume 14, issue 14
Biogeosciences, 14, 3431–3444, 2017
https://doi.org/10.5194/bg-14-3431-2017

Special issue: Ecosystem processes and functioning across current and future...

Biogeosciences, 14, 3431–3444, 2017
https://doi.org/10.5194/bg-14-3431-2017

Research article 20 Jul 2017

Research article | 20 Jul 2017

Interaction of CO2 concentrations and water stress in semiarid plants causes diverging response in instantaneous water use efficiency and carbon isotope composition

Na Zhao et al.

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Cited articles

Adiredjo, A. L., Navaud, O., Lamaze, T., and Grieu, P.: Leaf carbon isotope discrimination as an accurate indicator of water use efficiency in sunflower genotypes subjected to five stable soil water contents, J. Agron. Crop Sci., 200, 416–424, 2014.
Ainsworth, E. A. and McGrath, J. M.: Direct effects of rising atmospheric carbon dioxide and ozone on crop yields, Climate Change and Food Security, Springer, 109–130, 2010.
Badeck, F. W., Tcherkez, G., Eacute, N. S. S., Piel, C. E. M., and Ghashghaie, J.: Post-photosynthetic fractionation of stable carbon isotopes between plant organ – a widespread phenomenon, Rapid Commun. Mass Sp., 19, 1381–1391, 2005.
Bögelein, R., Hassdenteufel, M., Thomas, F. M., and Werner, W.: Comparison of leaf gas exchange and stable isotope signature of water-soluble compounds along canopy gradients of co-occurring Douglas-fir and European beech, Plant Cell Environ., 35, 1245–1257, 2012.
Brandes, E., Kodama, N., Whittaker, K., Weston, C., Rennenberg, H., Keitel, C., Adams, M. A., and Gessler, A.: Short-term variation in the isotopic composition of organic matter allocated from the leaves to the stem of Pinus sylvestris: effects of photosynthetic and postphotosynthetic carbon isotope fractionation, Glob. Change Biol., 12, 1922–1939, 2006.
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Short summary
Few researchers have investigated post-photosynthetic 13C fractionation happening in leaves. Potted saplings were cultivated under orthogonal treatments of CO2 concentration and soil water content. The 13C fractionation from mesophyll conductance and post-carboxylation both contributed to the total 13C fractionation that was determined by δ13C of water-soluble compounds and gas-exchange measurements.
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