Table 1.
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 | + | ++ |
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