Differential proteomics analysis reveals that Azospirillium brasilense (Sp7) promotes virus tolerance in maize and tomato seedlings

What Did We Learn From Plant Growth-Promoting Rhizobacteria (PGPR)-Grass Associations Studies Through Proteomic and Metabolomic Approaches?

“…After 16 days of inoculation with A. brasilense Sp7, beta-glucosidase 2 from maize leaf was 2-fold more expressed than non-inoculated maize plants (Lade et al, 2018). In another study, when the maize plants were co-treated with A. brasilense Sp7 and the maize dwarf mosaic virus (MDMV), after 16 days, the Sp7 promoted up-regulation around 1.8 of the beta-glucosidase 2 (Lade et al, 2019). Lade et al (2018Lade et al ( , 2019 concluded that Azospirillum brasilense Sp7 activates the systemic resistance (IRS).…”

“…Two proteomic studies on the interaction between Azospirillum brasilense Sp7 and maize pointed out the maize beta-glucosidase 2 up-regulation (Lade et al, 2018(Lade et al, , 2019. Beta-glucosidase 2 catalyzes the cleavage hydroxamic acid glucosides, specifically the glucoside of 4-hydroxy-7-methoxyl,4-benzoxazin-3-one (DIMBOA), a secondary metabolite plant against pathogens (Babcock and Esen, 1994;Frey et al, 1997).…”

“…In another study, when the maize plants were co-treated with A. brasilense Sp7 and the maize dwarf mosaic virus (MDMV), after 16 days, the Sp7 promoted up-regulation around 1.8 of the beta-glucosidase 2 (Lade et al, 2019). Lade et al (2018Lade et al ( , 2019 concluded that Azospirillum brasilense Sp7 activates the systemic resistance (IRS). Tobacco plants expressing βglucosidase from Trichoderma reesei showed increased internode length, height, biomass, leaf area, and trichome density than control plants and all these developmental parameters are regulated by gibberellins (Jin et al, 2011).…”

Azospirillum sp. and mycorrhizal fungi: key microorganisms in sustainable agriculture

“…5,8,9 Probably due to increased root growth and better plant nutrition there is an increased tolerance to phytopathogenic agents 5,[13][14][15] and by improving the gene expression of resistance to the disease of genes related to the disease. 16,17 It is known that this bacterium, inoculated in cereal seeds, increases the percentage of germination and biomass, 18,19 since it produces substances that stimulate root growth, which allows the absorption potential of nutrients and water to be increased. elevate, a benefit that, in the case of crops in arid and semi-arid zones, constitutes an even greater advantage.…”