TABLE 2.
Detection of assembled SEF14 and SEF21 fimbriae in various S. enteritidis strains by immunoelectron microscopy with specific antifimbrial sera
| S. enteritidis 3b strain | Fimbria productiona
|
||
|---|---|---|---|
| SEF14 | SEF21 | SEF17 | |
| Wild type | ++ | + | +++ |
| 3b-122 | − | ±b | +++ |
| 3b-122 pGEM-T1 | − | ±c | +++ |
| 3b-122 pLU/TA 4-1 | +++ | + | +++ |
a
The percentages of cells labelled by immunogold are indicated as follows: −, none; ±, less than 10%; +, 10 to 50%; ++, 50 to 75%; +++, 75 to 100%.
b
Two of approximately 400 cells were densely labeled.
c
Two of approximately 600 cells were sparsely labeled.