TABLE 1.
Lactobacillus species strains and antibiotic susceptibilitiesa on MRS agar medium
| Lactobacillus species and strain | Origin | Drugb
|
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STREP | KAN | GENT | CHLOR | BAC | RIF | ERY | TET | CIP | NAL | OFLX | LIN | VAN | ||
| L. acidophilus ATCCc 332 | Unknown | R | R | R | S | S | S | S | S | R | R | R | ND | I |
| L. acidophilus ATCC 4356 | Human | I/Rd | R | R | S | S | I | S | S | R | R | R | R | S |
| L. acidophilus ATCC 4357 | Human | R | R | I/R | S | S | S | R | S | S | R | S | I | S |
| L. acidophilus ATCC 53103 | Human feces | R | R | R | S | S | S | S | S | I | R | I | R | R |
| L. acidophilus ATCC 53544 | Infant | R | R | R | S | S | S | S | S | R | R | R | I | S |
| L. acidophilus PI KS-13 | Human intestine | R | R | R | S | S | S | S | S | R | R | ND | I | S |
| L. bifidus ATCC 11146 | Infant feces | R | R | R | S | S | S | S | S | R | R | R | S | R |
| L. delbrueckii ATCC 11842 | Yogurt | R | R | R | S | S | S | S | S | R | R | R | S | S |
| L. delbrueckii DSM 20080 | Yogurt | S | S | S | S | S | S | S | S | R | R | R | S | S |
| L. fermentum ATCC 11976 | Infant | S/I | I | S | S | S | S | S | S | R | R | ND | S | R |
| L. fermentum ATCC 23271 | Human intestine | R | R | I | S | S | S | S | S/I | R | R | ND | S | R |
| L. gasseri ATCC 19992 | Human feces | R | R | R | S | S | S | S | S | R | R | R | R | I |
| L. gasseri NCK 99 | Unknown | I/R | R | R | S | S | S | S | S | R | R | R | R | I/R |
| L. johnsonii ATCC 33200 | Human blood | R | R | R | S | S | S | I | I | R | R | ND | I | I |
| L. johnsonii PI 100-100 | Rat stomach | R | R | R | S | S | S | S | S | R | R | ND | R | S/I |
| L. maltaromicus BCCM 6903 | Raw milk | R | R | I | S | S/I | I | R | S | S | R | S | S | S/I |
| L. murinus NCTRe | Mouse and rat | R | R | R | S | S | S/I | S | S | S/I | R | S/I | ND | R |
| L. paracasei ATCC 27092 | Human feces | R | R | R | S | S | S | S | S | I | R | ND | S | R |
| L. paracasei JCM 1109 | Human intestine | R | R | R | S | S | S | S | S | R | R | I | I/R | R |
| L. plantarum ATCC 14917 | Pickled cabbage | R | R | I/R | S | I | I | I | S/I | R | R | R | R | R |
| L. plantarum WCFS1 | Human saliva | R | R | I | S | S | I | S | S/I | R | R | R | ND | R |
| L. reuteri ATCC 23272 | Human feces | I | I | I | S | S | S | S | S/I | R | R | R | S | R |
| L. ruminis ATCC 25644 | Human intestine | R | R | R | S | S | S | S | S | S | R | S | S | R |
| L. sake PI Lb5 | Turkey ham | R | R | R | S | I | S | S | S | R | R | R | ND | R |
| L. sake PI Lb6 | Turkey ham | R | R | R | S | S | S | S | S | R | R | R | ND | R |
| L. sake PI Lb15 | Turkey ham | R | R | R | S | S | I | I | R | R | R | R | ND | R |
| L. vaginalis PI 675a | Mouse vagina | R | R | I | S | S | S | S | I | R | R | R | ND | R |
Antibiotic profiles were determined by disc diffusion and scored as resistant (R), intermediate (I), or susceptible (S). ND, susceptibility not determined.
Drug name abbreviations (concentration used [micrograms per milliliter]): STREP, streptomycin (10); KAN, kanamycin (30); GENT, gentamicin (10); CHLOR, chloramphenicol (30); BAC, bacitracin (10); RIF, rifampin (5); ERY, erythromycin (2); TET, tetracycline (30); CIP, ciprofloxacin (5); NAL, nalidixic acid (30); OFLX, ofloxacin (5); LIN, lincomycin (2); VAN, vancomycin (30).
See Materials and Methods for type culture collection abbreviations.
The analysis was repeated with most strains producing identical results; however, in some cases slightly different profiles were obtained. These differences, however, occurred because the zone diameters approached the limits of the scoring range.
Representative profile of 17 isolates. Isolates were obtained from mouse and rat intestinal and nasopharyngeal swabs.