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 3

Action of volatiles emitted by Pseudomonas and Serratia strains on Caenorhabditis elegans. The numbers of L4 and adult worms, eggs, and L1–L3 forms were counted on the days 3 and 8 after 10 worms of L4 were placed on each culture plate.

Treatment by volatiles emitted by strains	Development of nematodes
	3 days				8 days
	L4 forms	Adult nematodes	Eggs	Juvenile L1-L2 forms	Adult nematodes	Eggs	Juvenile L1–L3 forms	L4 forms
P. chlororaphis 449	6 ± 2	4 ± 1	1.2 ± 0.2 × 10^2	14 ± 3 (only L1)	1.3 ± 0.3 × 10^2	25 ± 5	1.4 ± 0.3 × 10^2	0
P. fluorescens B-4117	0	10	1.5 ± 0.4 × 10^2	25 ± 5	2 ± 0.5 × 10^2	~3 × 10^3	3 ± 1 × 10^2	1.5 ± 0.5 × 10^2
S. plymuthica IC1270	10	0	0	0	0	0	0	0
S. proteamaculans 94	6 ± 2	5 ± 2	14 ± 4	7 ± 3 (only L1)	2 ± 0.4 × 10^2	1.5 ± 0.4 × 10^2	1.3 ± 0.3 × 10^3	0
Control (no treatment)	0	10	3 ± 1 × 10^2	2 ± 0.6 × 10^2	4 ± 1 × 10^2	~4 × 10^4	~3 × 10^3	~4 × 10^3