Transcriptomic Profile Analysis of Streptococcus mutans Response to Acmella paniculata Flower Extracts

Figure 2

TEM analysis of S. mutans treated with APFH and APFD compared with untreated cells: (a) untreated S. mutans, (b) S. mutans treated with APFH (12.5 mg/mL), (c) S. mutans treated with APFH (50 mg/mL), (d) S. mutans treated with APFD (12.5 mg/mL), and (e) S. mutans treated with APFD (50 mg/mL). Some characteristics of untreated bacteria were clearly seen such as granules, vacuoles and encapsulated structure (i); meanwhile, the cell wall of treated bacteria was lysed (ii) and distorted (iii) with formation of hollows (iv).

(a)

(b)

(c)

(d)

(e)