TABLE 3.
In vitro production of plant growth regulators, 1-aminocyclopropane-1-carboxylic acid deaminase (ACCD), siderophores, nitrogenase enzyme and ammonia and the phosphorus (P) solubilization ability by Streptomyces chartreusis UAE1, S. tritolerans RAK1, and S. rochei RAMS1 isolated from the rhizosphere of Salicornia bigelovii.
| Activity | S. chartreusis (#21) | S. tritolerans (#7) | S. rochei (#11) |
| IAA | + | − | − |
| IPYA | + | − | − |
| Put | − | + | − |
| Spd | − | + | − |
| Spm | − | + | − |
| GA3 | − | − | − |
| iPa | − | + | + |
| iPA | + | − | + |
| Z | + | + | − |
| ACCD | − | − | + |
| Siderophores | + | − | − |
| Nitrogenase | − | − | − |
| Ammonia | − | − | − |
| P-solubilization | + | + | − |
| Tolerance to NaCl (8%) | ++ | ++ | ++ |
Data are from eight independent replicates. IAA, indole-3-acetic acid; IPYA, indole-3-pyruvic acid; Put, putrescine; Spd, spermidine; Spm, spermine; GA3, gibberellic acid; iPa, isopentenyl adenine; iPA, isopentenyl adenoside; Z, zeatin. +, producing; −, not producing detectable levels; ++, highly tolerant to NaCl (8%).