
%0 Journal Article
%A June, Tania 
%A Evans, John R. 
%A Farquhar, Graham D. 
%T A simple new equation for the reversible temperature dependence of photosynthetic electron transport: a study on soybean leaf
%J Functional Plant Biology
%D 2004/04/15
%V 31
%N 3
%P 275-283
%K chlorophyll fluorescence, CO2, gas exchange, growth temperature, nitrogen, photosynthesis model.
%R https://doi.org/10.1071/FP03250
%U https://www.publish.csiro.au/paper/FP03250 
%X 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:... 
