The approach and methods are robust and the ability to quantify components of the photosynthetic electron transfer chain is powerful.
Line 308 – The data presented is used to support potential cyclic electron flow around PSI – however other alternative terminal electron sinks could also be up-regulated – these concepts are discussed in a recent review by Milligan and Behrenfeld annual review 2013 – the implications of this should be discussed unless the authors can show specifically enhanced flow around PSI.