The strain to strain variation could not be explained by differences
in initial attachment and final cell counts but may in part be
explained by differences in levels of eDNA, likely as result of differences
in lysis behaviour. Depending on the strain, incubation time and temperature,
L. plantarum may form low and high density biofilms. Even
in low density biofilms, still a high number of culturable cells may be
present. High density biofilms consist of a large contribution of CV stainable
matrix components conceivably composed of proteins, eDNA and
proteinaceous material. Information on environmental conditions that
influence biofilm formation by lactobacilli is of relevance to food producing
industries and could add to the design of newintervention strategies
to prevent biofilm formation.
Acknowledgements