PHB2 and infection: In previous studies, PHB2 was detected exclusively in the nucleus of cerk1 Arabidopsis plant after chitosan treatment (triggering a MAMP-like response; Fakih et al., 2016) and prohibitin protein was also identified in the nucleus of Solanum lycopersicum with increased abundance after 24h infection with Phytophthora capsici compared to non-infected plants (Howden et al., 2017).