Table 1.
Streptomyces strains with antifungal activity originated from twelve studied Greek habitats.
| Sampling area | Number of isolates tested | Number (percentage) of isolates with antifungal activity against F. oxysporum DSM62059 {highest; lowest; average}1 |
|---|---|---|
| (A) Rhizosphere samples | ||
| (1) Rhizosphere of Ebenus sibthorpii | 28 | 3 (10.7%) {2.36; 1.3; 1.5} |
| (2) Rhizosphere of Ceratonia siliqua | 42 | 1 (2.4%) {1.96; 1.96; 1.96} |
| (3) Rhizosphere of Olea europea | 73 | 6 (8.2%) {2.57; 2.13; 1.34} |
| (4) Rhizosphere of Pinus brutia from Crete | 20 | 3 (15.0%) {4.84; 3.26; 1.56} |
| (5) Rhizosphere of evergreen woody shrubs from an island of the Aegean Sea | 21 | 5 (23.8%) {2.69; 1.87; 1.47} |
| (6) Rhizosphere of evergreen woody shrubs from an island of the Ionian Sea | 28 | 0 (0.0%) |
| (7) Rhizosphere of coniferous trees (Arcadian forest) | 84 | 6 (7.1%) {2.91; 2.05; 1.56} |
| Rhizosphere subtotals | 296 | 21 (7.0%) |
| (B) Nonrhizosphere samples | ||
| (8) Hot spring water of Thermopiles thermal springs (Viotia district) | 22 | 2 (9.1%) {1.63; 1.46; 1.28} |
| (9) Sediment from a volcanic area (Santorini island—Aegean sea) | 5 | 1 (20%) {1.3; 1.3; 1.3} |
| (10) Soil derived from cultivated area (Marathon, Attica district) | 179 | 10 (5.6%) {2.25; 1.6; 1.25} |
| (11) Soil from protected natural forest area (Kessariani, Attica District) | 26 | 2 (7.7%) {1.39; 1.37; 1.34} |
| Nonrhizosphere subtotals | 232 | 15 (6.0%) |
|
| ||
| Total | 528 | 39 (7.0%) |
1Antagonistic activity levels as expressed by the quotient of the inhibition zone area over streptomycete colony area (See Section 2.2).