Fig. 5
From: Defining novel plant polyamine oxidase subfamilies through molecular modeling and sequence analysis
Hypothetical scenario for diversification of PAO in plant evolution. Distribution and subcellular localization of plant PAOs subfamilies are schematized for each plant lineage. On the left the mayor events on plant PAO evolution are mentioned. Cell walls are represented in color, nucleus are represented by a solid sphere, peroxisomes are represented by an ellipse and vessels are represented by the vertical structure in the lefts of the cells of vascular plants. Red crosses indicates extinction events