Abbreviations
APT Adenosyl phosphoryl transferase;
CaMV Cauliflower mosaic virus;
CA Carbonic anhydrase;
C c Chloroplast CO2 concentration;
Chl Chlorophyll;
ETR Electron transport rate;
ETRI Electron transport rate of PSI, see text for details;
ETRII Electron transport rate of PSII, see text for details;
F m Maximum Chl fluorescence;
F o Minimum Chl fluorescence;
F v Variable Chl fluorescence,F m -Fo;
g s Stomatal conductance;
g m Mesophyll conductance;
LED Light-emitting diode;
nptII Neomycin phosphotransferase (kanamycin resistance gene);
PAR Photosynthetically active radiation;
PBGS Porphobilinogen synthase;
PEPC Phosphoenolpyruvate carboxylase;
PFD Photon flux density;
PORC Protochlorophyllide oxidoreductase;
PPOX Protoporphyrinogen oxidase;
PSI Photosystem I;
PSII Photosystem II;
P700 Reaction centre chlorophyll of PSI, with absorption maximum at 700 nm;
rubisco Ribulose 1, 5-bisphosphate carboxylase/oxygenase;
TCA Tricarboxylic acid cycle;
UROD Uroporphyrinogen decarboxylase;
VC Vector control;
WUE Water use efficiency.
Key words: Arabidopsis thaliana , Carbonic anhydrase, C4 photosynthesis, Photosystem I, Photosystem II, CO2assimilation, Water Use Efficiency