Competition between Burkholderia pseudomallei and B. thailandensis

BMC Microbiology

Table 2 Inhibition of B. thailandensis motility by cell-free supernatant of B. pseudomallei from three independent soil samples

Soil sample ^a	Bp isolates	Sequence type	No. of colonies ^b	Inhibition ^c
E4	A1	ST424	38 (19%)	-
	A2	ST177	12 (6%)	+
	A3	ST176	10 (5%)	+
	A4	ST185	140 (70%)	+
D10	B1	ST33	50 (25%)	+
	B2	ST60	18 (9%)	+
	B3	ST163	103 (51.5%)	+
	B4	ST176	29 (14.5%)	+
A11	C1	ST93	174 (87%)	+
	C2	ST304	17 (8.5%)	-
	C4	ST60	9 (4.5%)	+

^a, soil sample and culture data was obtained from our previous study [4]. The study reported the distribution of B. pseudomallei within an area of disused land in northeast Thailand and genotypes of primary plate colonies isolated from three independent sampling points (E4, D10 and A11).
^b, Out of a total of 200 colonies per sample.
^c, Inhibition effect of B. pseudomallei cell-free supernatant on five B. thailandensis isolates. The inhibition of B. thailandensis swarming was performed by the method (ii) assay. The table shows results of five B. thailandensis isolates which had the same results.

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