Discussion
Over the past decades, several studies indicated that strains of various
rhizobacterial species can promote plant growth, induce systemic
resistance against pathogens and phytophagous insects and can alter
plant secondary metabolism (van de Mortel et al. 2012; Etaloet al. 2018; Stringlis et al. 2018a; Hu et al.2018; Jeon et al. 2021). Our results confirm and extend results
obtained in previous studies (Barriuso et al. 2008; Walkeret al. 2011; van de Mortel et al. 2012; Cordovez et
al. 2018) and provide, for the first time, new insights into global
metabolome changes and specific plant metabolic signatures of effective
and ineffective partnerships between rhizobacteria and their host plant.