Recently, growing attention has been attracted to beneficial soil bacteria present in plant rhizosphere. These rhizosphere-inhabiting microbes are collectively referred to as plant growth promoting rhizobacteria (PGPR) that have been widely employed in modern agriculture (Yuan et al., 2013; Mishra et al., 2014; Zebelo et al., 2016). A large number of studies have shown that PGPR strains can interact with plants, and control plant growth and pathogen invasion by synthesizing some growth regulators such as polyamines, hormones, and antibiotic substances (Dey et al., 2004; Scholz et al., 2011; Zhou et al., 2016b). So far, many works have been made to enhance the adaptation of plants to various abiotic stresses such as drought and salt stress by application of PGPR (Ait Barka et al., 2006; Sukweenadhi et al., 2015; Zhou et al., 2016b). However, lack of researches exists on the information about PGPR-induced saline–alkaline tolerance in plants.