This article comments on:
Arrivault S, Moraes TA, Obata T, Medeiros DB, Fernie AR, Boulouis A, Ludwig M, Lunn JE, Borghi GL, Schlereth A, Guenther M, Stitt M. 2019.
Keywords: C4 photosynthesis; Calvin–Benson cycle; carbon assimilation; carbon-concentration mechanism (CCM); metabolite profiling; photosynthesis.