TABLE 3.
Frequency distribution of colony morphologiesa
| Colony type | No. and strain with colony type on:
|
||
|---|---|---|---|
| LB agar | MacConkey agar | Blood agar | |
| 2-mm pale tan | 4.55 × 105 (72%), OF001L | 2.27 × 105 (53%) | 4.81 × 105 (39%), OF006B |
| Pinpoint, translucent | 1.44 × 105 (23%), OF002L | 1.5 × 104 (3.5% | 5.86 × 105 (47%) |
| 2- to 4-mm pink-orange | 83 (0.01%), OF003L | None | 152 (0.01%) |
| 1.5-mm dark gray | None | 1.38 × 105 (32%) | 1.13 × 105 (9.1%), OF005B and OF008B |
| 1.5- to 2-mm gray with large white center | None | 5 × 104 (11.7%), OF013M | 5.1 × 104 (4.1%), OF007B, OF010B, and OF011B |
| 1.5- to 2-mm gray with small white center | None | None | 2.7 × 103 (0.22%), OF004B and OF009B |
| 1-mm clear | None | 4.35 × 104 (10.2%), OF014M | None |
| 1.25-mm doughnut | None | 2.15 × 104 (5%), OF012M | None |
| Total | 6.28 × 105 | 4.26 × 105 | 1.24 × 106 |
a
All bacterial samples were from the July 1997 collection. Plates were incubated at 37°C for 24 h. Percentages indicate how frequently that colony morphology was observed on all the plates of a given type used to determine the total CFU/larva. These were based on a total of 2,265 colonies for LB agar, 1,085 colonies for MacConkey agar, and 1,182 colonies for blood agar. The strain designations indicate which colonies were picked for the 14 bacterial isolates identified in Table 4.