Table 1.
List of streptomycetes isolated from plants or the rhizosphere showing plant growth-promoting (PGP) activity.
| Species | Host Plant | PGP Traits/Observed Effects in Plants | Reference |
|---|---|---|---|
| Streptomyces sp. | Clover | Nutrient uptake | [72] |
| Streptomyces sp. | Rice, chickpea | Nutrient uptake and plant growth | [73,74] |
| Streptomyces lydicus | Pea | Nodulation | [75] |
| Streptomyces sp. | Mung bean | Enhanced plant growth | [68] |
| Streptomyces sp. | Soybean | Nutrient uptake and plant growth | [76] |
| Streptomyces atrovirens, S. griseoviridis, S. lydicus, S. olivaceoviridis, S. rimosus, S. rochei, S. viridis | Rhizosphere of different plants | Auxin/IAA production | [77,78,79,80,81] |
| Streptomyces sp. | - | Gibberellin biosynthesis | [82] |
| Streptomyces igroscopicus | - | ACC deaminase | [83] |
| Streptomyces sp. | Terfezia leonis Tul. | Siderophore production, IAA, and gibberellic acid production | [84] |
| Streptomyces sp. | Marine environments | Gibberellic acid, IAA, abscisic acid, kinetin, and benzyladenine | [85] |
| Streptomyces aurantiogriseus | Rice | IAA production | [86,87] |
| Streptomyces sp. | Soil | Synthesis of IAA and siderophore production | [88] |
| Streptomyces spp. | - | B-1,3-Glucanase, IAA, and HCN synthesis | [73,89] |
| Streptomyces sp. | - | Siderophore production | [90] |
| Streptomyces rochei, S. carpinensis, S. thermolilacinus | Wheat rhizosphere | Production of siderophore, IAA synthesis, and phosphate solubilization | [91] |
| Streptomyces sp. | Soil | Siderophore production, phosphate solubilization, and N2 fixation | [72] |
| Streptomyces spp. | Alnus glutinosa, Casuarina glauca, Eleagnus angustifolia | Production of zeatin, gibberellic acid, and IAA | [92] |
| Streptomyces olivaceoviridis, S. rochei | Wheat | Auxin, gibberellin, and cytokinin synthesis | [93] |
| Streptomyces hygroscopicus | Kidney beans | Formation of adventitious roots in hypocotyls | [94] |
| Streptomyces sp. | Rhododendron | Accelerated emergence and elongation of adventitious roots in tissue-cultured seedlings | [28] |
| Streptomyces filipinensis, S. atrovirens | Tomato | Plant growth promotion | [78] |
| Streptomyces spiralis | Cucumber | Plant growth promotion | [95] |
| Streptomyces spp. | Sorghum | Enhanced agronomic traits of sorghum | [96] |
| Rice | Enhanced stover yield, grain yield, total dry matter, and root biomass |
Note: IAA: Indole-3-acetic acid; ACC: 1-amino cyclopropane-1-carboxylic acid; HCN: Hydrogen cyanide.