Fig. 7 From:A source-sink model explains the difference in the metabolic mechanism of mechanical damage to young and senescing leaves inCatharanthus roseus Diagram of the network of secondary metabolites. The grid shows the CK, WUL and WLL groups from left to right, respectively; the content of PCs from low to high is indicated by the color scale from red to white, respectively; the content of TIAs from low to high is indicated by the color scale from blue to red, respectively; a solid line represents a one-step reaction, and a dotted line represents a multistep reaction; CK: control group, WUL: damaged upper leaf group, WLL: damaged lower leaf group Back to article page