The biosurfactant-producing fluorescent pseudomonad, Pseudomonas
koreensis 2.75 (CBS 125413), was used in the present
study (Hultberg et al., 2008b). This strain produces a cyclic
lipopeptide-type of biosurfactant with a molecular mass identical
to lokisin (Hultberg et al., 2010a). The strain was stored in glycerol
(20% v/v) at 80 C.