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Fig. 2 | BMC Microbiology

Fig. 2

From: Genomic insights into plant growth promoting rhizobia capable of enhancing soybean germination under drought stress

Fig. 2

The concentration of a ACC (produced under drought stress induced by − 0.30 MPa PEG), b EPS, c siderophore, d IAA and e diameter of clear (halo) zones produced by rhizobial species. R1 - Rhizobium sp. strain R1, R2 - Rhizobium tropici strain R, R3 - Rhizobium cellulosilyticum strain R3, R4 - Rhizobium taibaishanense strain R4 and R5 - Ensifer meliloti strain R5. ACC-1-aminocyclopropane-1-carboxylate, EPS – exopolysaccharide, IAA - Indole-acetic-acid, O.D – optical density. Data represent mean ± SE

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