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Fig. 1 | BMC Microbiology

Fig. 1

From: Interspecies transfer of vancomycin, erythromycin and tetracycline resistance among Enterococcus species recovered from agrarian sources

Fig. 1

Phenotypic clumping of enterococci examined with phase contrast microscopy. All potential donor isolates of enterococci were subjected to exposure of supernatant from each of the three pheromone producers for four hours in a 24 well microplate at 37 °C. (A) 20x micrograph of E. Faecalis MF06036 with the supernatant of E. Faecalis MW01105Rif, (centre), the typical reaction observed when aggregation signalling is activated. (B) 100x micrograph of MF06036 with the supernatant from E. Faecium ST01109Rif. (C) 40x image of a large reaction between E. Faecalis MF06035 and the supernatant of MW01105Rif. (D) 100x Negative clumping reaction of MF06036 supernatant added to MW01105Rif. Scale bars represent ten microns

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