Table 2 Antagonistic activities of different bacterial isolates in dual culture and effect of volatile compounds on various potato pathogens
Strain | Percent (%) growth inhibition | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
R. solani (AG1-IA) | R. solani (AG3) | Sclerotinia sclerotiorum | Fusarium spp. | Sclerotium rolfssi | ||||||
Dual culture | Volatile | Dual culture | Volatile | Dual culture | Volatile | Dual culture | Volatile | Dual culture | Volatile | |
Pf1 | 20.4 (26.9) | 11.1 (19.5) | 48.2 (43.9) | 27.8 (31.8) | 28.9 (32.5) | 20.0 (26.6) | 40.0 (39.2) | 3.7 (11.1) | 25.9 (30.6) | 40.0 (39.2) |
Pf2 | 40.8 (39.7) | 17.8 (24.9) | 48.9 (44.4) | 32.6 (34.8) | 43.3 (41.2) | 0.0 (0.0) | 39.6 (39.1) | 11.1 (19.5) | 38.9 (38.6) | 45.6 (42.5) |
Pf3 | 38.9 (38.6) | 17.8 (24.9) | 32.2 (34.6) | 42.2 (40.5) | 9.6 (18.1) | 76.7 (61.1) | 32.2 (34.6) | 1.1 (6.1) | 18.5 (25.5) | 4.8 (12.7) |
Pf4 | 27.8 (31.8) | 11.1 (19.2) | 38.5 (38.4) | 80.0 (63.4) | 42.2 (40.5) | 0.0 (0.0) | 33.3 (35.3) | 31.1 (33.9) | 20.4 (26.8) | 72.2 (58.2) |
Pf5 | 27.8 (31.8) | 42.6 (40.8) | 32.9 (35.1) | 84.7 (66.5) | 20.0 (26.6) | 76.7 (61.1) | 41.1 (39.9) | 41.8 (40.1) | 27.8 (31.8) | 63.3 (52.7) |
Pf6 | 11.1 (19.5) | 0.7 (4.9) | 4.4 (12.2) | 33.3 (35.3) | 20.4 (26.9) | 10.0 (18.4) | 32.2 (34.6) | 1.1 (6.1) | 27.8 (31.8) | 32.2 (34.6) |
Pf7 | 46.3 (42.9) | 2.2 (8.6) | 57.8 (49.5) | 83.3 (65.9) | 51.5 (45.9) | 78.9 (62.6) | 40.0 (39.2) | 11.1 (19.5) | 35.2 (36.4) | 28.9 (32.5) |
Pf8 | 38.9 (38.6) | 16.7 (24.1) | 44.4 (41.8) | 27.8 (31.8) | 18.9 (25.8) | 65.6 (54.1) | 39.3 (38.8) | 22.2 (28.1) | 16.7 (24.1) | 50.4 (45.2) |
Pf9 | 27.8 (31.8) | 6.3 (14.3) | 49.6 (44.8) | 50.8 (45.4) | 10.0 (18.4) | 32.9 (35.1) | 33.3 (35.3) | 0.4 (3.5) | 5.6 (13.6) | 55.6 (48.2) |
Pf10 | 48.5 (43.9) | 65.6 (54.1) | 61.1 (51.4) | 85.6 (67.7) | 51.9 (46.1) | 86.7 (68.6) | 50.0 (45.0) | 57.4 (49.3) | 44.4 (41.8) | 76.3 (60.9) |
Pf11 | 38.9 (38.6) | 13.3 (21.4) | 33.3 (35.3) | 39.3 (38.8) | 18.5 (25.5) | 79.6 (63.2) | 33.7 (35.5) | 50.0 (45.0) | 42.6 (40.7) | 66.7 (54.7) |
Pf12 | 27.8 (31.8) | 5.6 (13.6) | 38.5 (38.2) | 39.3 (38.8) | 21.1 (27.4) | 70.0 (56.8) | 43.3 (41.2) | 11.5 (19.8) | 38.9 (38.6) | 11.1 (19.5) |
Pf13 | 44.4 (41.8) | 0.4 (3.5) | 47.8 (43.7) | 83.3 (65.9) | 31.1 (33.9) | 21.8 (27.9) | 32.2 (34.6) | 10.0 (18.4) | 27.8 (31.8) | 40.0 (39.2) |
Pf14 | 59.3 (50.4) | 76.7 (61.1) | 61.1 (51.4) | 84.8 (67.1) | 54.7 (47.3) | 88.2 (69.9) | 62.2 (52.1) | 52.9 (46.7) | 55.6 (48.2) | 80.0 (63.4) |
Pf15 | 44.4 (41.8) | 48.5 (44.2) | 27.8 (31.8) | 40.4 (39.4) | 16.7 (24.1) | 1.1 (6.1) | 40.0 (39.2) | 28.5 (32.3) | 16.7 (24.1) | 72.2 (58.2) |
Pf16 | 37.1 (37.5) | 15.6 (23.2) | 54.4 (47.5) | 84.4 (66.8) | 48.9 (44.4) | 79.6 (63.2) | 44.4 (41.8) | 21.1 (27.4) | 29.6 (32.9) | 39.3 (38.8) |
Pf17 | 38.9 (38.6) | 23.3 (28.9) | 32.2 (34.6) | 50.7 (45.4) | 27.4 (31.3) | 76.6 (61.1) | 36.7 (37.3) | 10.0 (18.4) | 37.4 (37.5) | 26.7 (31.1) |
Pf18 | 22.2 (28.1) | 38.9 (38.6) | 5.6 (13.6) | 75.9 (60.6) | 18.2 (25.2) | 4.4 (12.2) | 42.2 (40.5) | 10.4 (18.8) | 31.5 (34.1) | 62.2 (52.1) |
Pf19 | 37.4 (37.5) | 0.4 (3.5) | 44.4 (41.8) | 45.6 (42.5) | 8.9 (17.3) | 51.1 (45.6) | 40.0 (39.2) | 1.1 (6.1) | 33.3 (35.3) | 48.9 (44.4) |
Pf20 | 31.5 (34.1) | 1.1 (6.1) | 48.9 (44.4) | 80.4 (63.7) | 20.0 (26.6) | 83.7 (66.2) | 40.0 (39.2) | 1.5 (6.9) | 27.8 (31.8) | 43.3 (41.2) |
Pf21 | 44.4 (41.8) | 26.7 (31.1) | 0.8 (4.9) | 82.2 (65.1) | 46.7 (43.1) | 38.9 (38.6) | 35.9 (36.8) | 17.4 (24.7) | 31.5 (34.1) | 8.9 (17.3) |
Pf22 | 33.3 (35.2) | 2.2 (8.6) | 43.3 (41.2) | 39.3 (38.8) | 19.6 (26.3) | 9.6 (18.1) | 30.0 (33.2) | 17.4 (24.7) | 27.8 (31.8) | 10.8 (19.2) |