Fig 4. Levels of Mg-ProtoIX and Mg-ProtoIX-ME in Col-0 and gun5 following exposure to low temperatures.

Plants were grown for 5 weeks in SD conditions and transferred to cold conditions and sampled after indicated time points where time point 0 is the middle of the day. The first sample (4h) was taken at the end of the light period of the first day. Each data point represents at least 3 biological replicates (±SD).