BioDesign Research / 2020 / Article / Fig 3

Review Article

Biosystems Design to Accelerate C3-to-CAM Progression

Figure 3

An evolution-based conceptual framework for crassulacean acid metabolism (CAM) engineering guidance. Hypothesis 1: CAM evolution followed a linear course leading from facultative CAM to strong constitutive CAM. Hypothesis 2: facultative and constitutive CAM evolved independently. The hypotheses were adapted from [18].