
TY  - JOUR
A1  - June, Tania 
A1  - Evans, John R. 
A1  - Farquhar, Graham D. 
T1  - A simple new equation for the reversible temperature dependence of photosynthetic electron transport: a study on soybean leaf
JF  - Functional Plant Biology
JO  - Functional Plant Biol.
Y1  - 2004
VL  - 31
IS  - 3
SP  - 275
EP  - 283
KW  - chlorophyll fluorescence, CO2, gas exchange, growth temperature, nitrogen, photosynthesis model.
UR  - https://doi.org/10.1071/FP03250 
N2  - The temperature response of Jmax, the irradiance-saturated potential rate of photosynthetic electron transport in the absence of Rubisco limitation, has usually been modelled by a complicated, modified Arrhenius type of equation. Light saturation can be difficult to achieve and reduces the precision of fluorescence measurements. Consequently, we calculated the rate of electron transport at 1200 &#956;mol photosynthetically active radiation (PAR) quanta m&#8211;2 s&#8211;1 from chlorophyll fluorescence measurements on intact soybean leaves [Glycine max (L.) Merr] as temperature increased from 15 to 43&#176;C with 1250 &#956;mol mol&#8211;1 ambient [CO2]. Electron transport rate was maximal around 37&#176;C and the decline in rate following further increases in leaf temperature to 43&#176;C was found to be completely reversible immediately upon return to lower temperatures. We report a convenient, new equation for the temperature dependence of the rate of electron transport under high irradiance:... 
ER  -

