Skip to main content

Table 3 Colony morphology observed after two weeks incubation on Middlebrook 7H10 agar at 37°C.

From: Biofilm formation by Mycobacterium avium isolates originating from humans, swine and birds

Colony morphology
Origin SmT1 SmO2 Intermediate Total
Avian 8 (80%) 2 (20%)   10 (100%)
Human 15 (42%) 18 (50%) 3 (8%) 36 (100%)
Biofilm forming porcine 7 (78%) 2 (22%)   9 (100%)
Biofilm non-forming porcine 19 (45%) 20 (48%) 3 (7%) 42 (100%)
Total 49 (51%) 42 (43%) 6 (6%) 97 (100%)
  1. 1Smooth transparent
  2. 2Smooth opaque
  3. The reference strain ATCC 25291 was the only rough (Rg) isolate after two weeks.
  4. Ref. strains are not included in the table.