
TY  - JOUR
A1  - Robinson, SP 
A1  - Wiskich, JT 
A1  - Paleg, LG 
T1  - Effects of Indoleacetic Acid on CO<sub>2</sub> Fixation, Electron Transport and Phosphorylation in Isolated Chloroplasts
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 1978
VL  - 5
IS  - 4
SP  - 425
EP  - 431
KW  - 
UR  - https://doi.org/10.1071/PP9780425 
N2  - The effects of indoleactic acid (IAA) on CO2 fixation, electron transport and photophosphorylation were examined. The rate of CO2 fixation by preparations of intact chloroplasts was not significantly increased by the addition of IAA (0.2 - 5 µM). Electron transport and coupled phosphorylations were similarly unaffected when measured with ferricyanide or methyl viologen as the electron acceptor. Cyclic phosphorylntion mediated by phenazine methosulfate was also not increased by IAA. It is concluded that the hormone does not affect photosynthesis by isolated chloroplasts in short-term experiments and that the increased CO2 uptake observed with leaves following application of IAA may result from some effect of the hormone other than a direct interaction with the chloroplasts. 
ER  -

