PTEN and infection: The role of autophagy in plant polar growth has almost been underexplored, with a study showing that PTEN, a phosphatase of PI3P regulates autophagy in pollen tubes (Zhang et al., 2011), and another evidencing that PI3K loss-of-function in common bean plants have shorter root hairs and severe affections in the infection thread (Estrada-Navarrete et al., 2016).