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Table 1 Qualitative response of bacteria towards exopolysaccharide (EPS) assay

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

Bacterial strain Response at pH 5.5 Response at pH 7.5
28 °C ± 2 37 °C 45 °C 28 °C ± 2 37 °C 45 °C
R1 + + + ++
R2 + ++ + + ++ ++
R3 + ++ + + ++ ++
R4 + ++ + ++ ++
R5 ND ++ + ND + ++
  1. Legend: + = positive, - = negative, + + = strongly positive, ND =Not determined, R1= Rhizobium sp. strain R1, R2 = Rhizobium tropici strain R2, R3 = Rhizobium cellulosilyticum strain R3, R4 = Rhizobium taibaishanense strain R4 and R5 = Ensifer meliloti strain R5