Extremophiles as Plant Probiotics to Promote Germination and Alleviate Salt Stress in Soybean

Bacteria isolated from extreme environments have been shown to promote plant growth under challenging conditions. This study aimed examine the performance of extremophilic microorganisms salt stress and their ability improve tolerance soybean plants this stress. In vitro experiments showed that bacteria belonging genera Stenotrophomonas Exiguobacterium were halophilic displayed growth-promoting activities For instance, these two species enhanced germination rate between 35 43% in comparison with non-inoculated seeds. addition, inoculation allowed roots double size, both length dry biomass, 250 mM NaCl. The physiological responses correlated changes gene expression during developmental responses. a marker (Glyma.03G226000) increased presence (5- 24-fold) non-stress conditions (17- 25-fold). Soybean genes responsive stress, such as Glyma.02G228100, Glyma.04G180400, Glyma.08G189600, Glyma.17G173200, highly induced by bacteria-inoculated roots. work used could be potential bio-inoculants help alleviate growth.