PIK3C2A and infection: The downstream defense genes (<i>CPK</i>, <i>CML</i>, <i>RBOH MPK3</i>, and <i>MPK4</i>) of pathogen pattern-triggered immunity (PTI) were strongly activated during infection at 12 hpi in resistant mutant <i>sr</i>; PTI appears to be central to plant defense against <i>Pcc</i> via recognition by three putative pattern recognition receptors (PRRs; BrLYM1-BrCERK1, BrBKK1/SERK4-PEPR1, BrWAKs).