PDF1 (65 KDA REGULATORY SUBUNIT OF PROTEIN PHOSPHATASE 2A); protein phosphatase type 2A regulator. Identical to Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform (PP2AA2) [Arabidopsis Thaliana] (GB:Q38950;GB:Q9LRZ9); similar to PP2AA3/PR65 (PROTEIN PHOSPHATASE 2A SUBUNIT A3), protein phosphatase type 2A regulator [Arabidopsis thaliana] (TAIR:AT1G13320.2); similar to RCN1 (ROOTS CURL IN NPA), protein phosphatase type 2A regulator [Arabidopsis thaliana] (TAIR:AT1G25490.1); similar to PP2AA3/PR65 (PROTEIN PHOSPHATASE 2A SUBUNIT A3), protein phosphatase type 2A regulator [Arabidopsis thaliana] (TAIR:AT1G13320.1); s