Fig. 2

BTEX biodegradation capacity of microcosms containing solely the autochthonous bacterial community (blue lines, circle) and the autochthonous bacterial community inoculated with V. paradoxus BFB1_13 and P. veronii BFHA4_7 strains (Inoculum; red lines, square). The time frame between the 18th and 115th hours of incubation is shown. At each time point mean BTEX concentrations together with standard deviation values represented as error bars are depicted. When error bars are not visible, they are hidden behind the symbols (Additional file 1: Table S2). A Benzene; B Toluene; C Ethylbenzene; D o-xylene; E m-xylene; F p-xylene