Figure 7.

Schematic summary of events and their interrelationships in young mature leaves under magnesium (Mg) deficient conditions. The colors of frame borders shows categories; light blue: drought stress, purple: accumulation of photosynthates, brown: accumulation of metals, yellow: hypothetic signaling, blue: photosynthesis, red: oxidation stress, green: chlorophyll. The orange dotted lines indicate the hypotheses shown by recent studies and the present review. ABA, abscisic acid; ROS, reactive oxygen species.