Journal
PHOTOSYNTHETICA
Volume 47, Issue 2, Pages 304-308Publisher
SPRINGER
DOI: 10.1007/s11099-009-0047-y
Keywords
chlorophyll a fluorescence; drought stress; NAD-malic enzyme; NADP-malic enzyme; phosphoenolpyruvate carboxykinase; phosphoenolpyruvate carboxylase; photosynthetic capacity; Rubisco
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Funding
- Programa de Desenvolvimento Educativo para Portugal' (PRODEP III)
- 'Federacao Portuguesa de Golfe'
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Water deficit, when rapidly imposed on three C-4 grasses of the different metabolic subtypes, Paspalum dilatatum Poiret (NADP-malic enzyme), Cynodon dactylon (L.) Pers (NAD-malic enzyme) and Zoysia japonica Steudel (phosphoenolpyruvate carboxykinase), caused decreases in photosynthetic rates, in the quantum yield of PS II and photochemical quenching, and in the activities of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) and phosphoenolpyruvate carboxylase (PEPC). The results provide evidence for non-stomatal limitations of photosynthesis differing in nature between the three species.
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