Inhibitory and Toxic Effects of Volatiles Emitted by Strains of Pseudomonas and Serratia on Growth and Survival of Selected Microorganisms, Caenorhabditis elegans, and Drosophila melanogaster
Table 2
Suppression of Agrobacterium tumefaciens C58, Synechococcus sp. PCC 7942, and fungal growth by volatiles emitted by Pseudomonas and Serratia strains. The experiments were conducted on three to four plates in each variant and repeated at least twice; total numbers of Petri plates used in each variant are shown in parentheses.
Treatment by volatiles emitted by strains
Treated microorganisms
A. tumefaciens C58 (CFU)
Synechococcus sp. PCC 7942 (CFU)
(mm)
(mm)
(mm)
Control (no treatment)
1.6 ± 0.6 × 1011 (9)
4 ± 1 × 107 (9)
14 ± 3 (8)
16 ± 3 (8)
18 ± 3 (8)
P. chlororaphis 449
ng (12)
ng (8)
ng (9)
10 ± 2 (12)
6 ± 2 (6)
P. chlororaphis 30–84
ng (8)
ng (8)
ng (8)
12 ± 3 (6)
7 ± 2 (9)
P. chlororaphis 62
ng (8)
ng (8)
ng (6)
9 ± 2 (8)
4 ± 1 (9)
P. chlororaphis 64
ng (6)
ng (8)
ng (6)
10 ± 3 (6)
8 ± 2 (8)
P. chlororaphis 66
ng (8)
ng (9)
ng (6)
11 ± 4 (6)
6 ± 2 (9)
P. chlororaphis 445
ng (6)
ng (8)
ng (6)
9 ± 2 (6)
3 ± 1 (8)
P. chlororaphis 464
ng (6)
ng (8)
ng (6)
9 ± 3 (6)
6 ± 2 (9)
P. chlororaphis 205
ng (9)
ng (9)
ng (6)
11 ± 2 (6)
3 ± 1 (9)
S. proteamaculans 94
4.5 ± 0.5 × 109 (9)
ng (8)
3 ± 1 (8)
13 ± 3 (8)
5 ± 1 (9)
P. fluorescens B-4117
ng (9)
ng (8)
ng (8)
8 ± 2 (12)
4 ± 1 (9)
S. plymuthica IC1270
2.5 ± 0.6 × 109 (8)
ng (8)
3 ± 1 (8)
12 ± 2 (8)
9 ± 2 (6)
ng: no visible growth. In controls, plates were filled with corresponding media, but volatile-emitting strains were omitted.
aGrowth of mycelium measured as distance in mm between the block of fungus and the border of its mycelium.
