Abstract
Environmental conditions that promote photorespiration are considered to be a major driving force for the evolution of C4 species from C3 ancestors. The genus Flaveria contains C3 and C4 species as well as a variety of intermediate species. In this study, we compare the water-use efficiency of intermediate Flaveria species to that of C3 and C4 species. The results indicate that under both well-watered and a drought-stress condition, C3–C4 and C4-like intermediacy in Flaveria species improve water-use efficiency as compared to C3 species.
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Abbreviations
- DS:
-
drought stress
- PEPCase:
-
phosphoenolpyruvate carboxylase
- Rubisco:
-
ribulose-1,5-bisphosphate carboxylase/oxygenase
- WUE:
-
water-use efficiency
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Acknowledgement
This work was supported by Portuguese Foundation for Science and Technology (FCT): grant reference SFRH/BPD/41700/2007.
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Dias, M.C., Brüggemann, W. Water-use efficiency in Flaveria species under drought-stress conditions. Photosynthetica 48, 469–473 (2010). https://doi.org/10.1007/s11099-010-0061-0
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DOI: https://doi.org/10.1007/s11099-010-0061-0