Table 1.
Details of 16 Streptomyces strains and their PGP traits.
| S.no | Strain Number |
Identification by 16S rDNA sequencing |
Gene bank ACC. No. |
In vitro PGP traits | Antifungal activity | Crops | Reference | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Indole Acetic acid (μg ml−1) |
Sidero phore” |
Hydrocy anic acid# |
Cellu lase! |
Chiti nase! |
β 1,3 glucanase (units) |
FOC | Mp | Rb | Bc | Sr | ||||||
| 1 | CAI-17 | Streptomyces sp. | JQ682619 | 0.34 | 2 | 3 | + | + | 0.66 | + | + | + | + | − | R,S,C | 10,12,17,21 |
| 2 | CAI-21 | Streptomyces sp. | JQ682620 | 1.13 | 1 | 3 | + | − | 0 | + | + | − | − | + | R,S,C,P | 10,11,18,21,23 |
| 3 | CAI-24 | Streptomyces sp. | JN400112 | 5.90 | 3 | 3 | + | + | 0 | + | − | + | + | − | R,S,C | 9,14,16,19,21 |
| 4 | CAI-68 | Streptomyces sp. | JQ682622 | 0.22 | 3 | 3 | + | − | 0.66 | − | − | − | + | − | R,S,C | 10,12,17,21 |
| 5 | CAI-78 | Streptomyces sp. | JQ682623 | 0.95 | 0 | 2 | + | − | 2.92 | + | − | + | + | − | R,S,C | 10,12,17,21 |
| 6 | CAI-85 | Streptomyces sp. | KF770897 | 43.6 | 1 | 2 | + | − | 1.21 | + | + | + | + | − | R,S,C | 13,15,20,21 |
| 7 | CAI-93 | S. fungicidicus | KF742498 | 33.6 | 2 | 2 | + | + | 0 | + | + | + | + | − | R,S,C | 13,20,21 |
| 8 | CAI-121 | Streptomyces sp. | JN400113 | 43.7 | 3 | 2 | + | + | 0 | + | − | − | + | − | R,S,C | 9,14,16,19,21 |
| 9 | CAI-127 | Streptomyces sp. | JN400114 | 3.50 | 4 | 3 | + | + | 0 | + | − | − | + | − | R,S,C | 9,14,16,19,21 |
| 10 | CAI-140 | S. coelicolor | KF742497 | 15.4 | 1.3 | 3 | + | − | 0.353 | + | + | + | + | − | R,S,C | 13,20,21 |
| 11 | CAI-155 | Streptomyces sp. | KF770896 | 12.6 | 2 | 3 | + | + | 0.76 | + | + | + | + | − | R,S,C | 13,15,20,21,22 |
| 12 | KAI-26 | Streptomyces sp. | JQ682624 | 0.40 | 3 | 1 | + | + | 0.35 | + | − | + | + | − | R,S,C | 10,12,17,21 |
| 13 | KAI-27 | Streptomyces sp. | JQ682625 | 0.74 | 1 | 2 | + | + | 0.2 | + | − | + | + | − | R,S,C | 10,12,17,21 |
| 14 | KAI-90 | Streptomyces sp. | JN400116 | 0 | 3 | 3 | + | + | 0 | + | − | + | + | − | R,S,C | 9,14,16,19,21 |
| 15 | KAI-180 | Streptomyces sp. | KF742499 | 30.1 | 0 | 2 | + | + | 0 | + | + | + | + | − | R,S,C | 13,20,21 |
| 16 | MMA-32 | S. roseoviolaceus | JQ682626 | 4.66 | 3 | 2 | + | + | 0 | + | + | + | + | + | R,S,C,P | 10,11,18,21,23 |
Rating scale for siderophore are 0 = no change, 1 = positive, 2 = halo zone of 1 3 mm, 3 = halo zone of 4 6 mm and 4 = halo zone of 7 mm and above. #Ratings scale for HCN production are 0 = no color change; 1 = light reddish brown; 2 = medium reddish brown and 3 = dark reddish brown.! The rating scale for Chitinase and Cellulase are 0 = no change; 1 = 1 6 mm; 2 = halo zone of 7 12 mm; 3 = halo zone of 19 24 mm and 4 = halo zone of 25 30 mm and above. Units One unit of β 1,3 glucanase activity is defined as the amount of enzyme that liberated 1 μmol of glucose h−1 at defined conditions. Foc Fusarium oxysporum f. sp. ciceri; Mp Macrophomina phaseolina; Rb – Rhizoctonia bataticola; Bc Botrytis cinerea; Sr Sclerotium rolfsii; R – Rice, S – Sorghum, C – Chickpea, P – Pigeonpea.