TABLE 1.
Bacterial strains used
| Species | Straina | PCR results obtained with L. casei group-specific primersb | Origin |
|---|---|---|---|
| L. acidophilus | ATCC 4356T | Human | |
| L. amylovorus | DSM 20531T | Cattle waste (corn silage) | |
| L. crispatus | DSM 20584T | Unknown | |
| NCDO A4 | Unknown | ||
| L. gallinarum | ATCC 33199T | Chicken crop | |
| L. helveticus | ATCC 15009T | Cheese | |
| CNRZ 303 | Cheese | ||
| L. delbrueckii subsp. bulgaricus | ATCC 11842T | Yogurt | |
| L. delbrueckii subsp. delbrueckii | ATCC 9649T | Sour grain mash | |
| L. delbrueckii subsp. lactis | ATCC 12315T | Cheese | |
| L. gasseri | DSM 20243T | ||
| ATCC 19992 | Feces | ||
| L. johnsonii | ATCC 33200T | Human blood | |
| NCC 533 | Human feces | ||
| L. reuteri | DSM 20016T | Human feces | |
| L. fermentum | ATCC 14931T | Unknown | |
| L. rhamnosus | ATCC 11443 | L. rhamnosus | Unknown |
| ATCC 11981 | L. rhamnosus | Unknown | |
| NCC 2504T | L. rhamnosus | Unknown | |
| L. casei | NCDO 173 | L. casei | Unknown |
| NCC 2508T | L. casei | Cheese | |
| L. paracasei subsp. paracasei | ATCC 27216 | L. paracasei subsp. paracasei | Saliva of child |
| NCC 989T | L. paracasei subsp. paracasei | Unknown | |
| NCC 2461 | L. paracasei subsp. paracasei | Infant feces | |
| B. longum | ATCC 15707T | Intestine of adult | |
| NCC 2705 | Infant feces | ||
| B. infantis | ATCC 15697T | Intestine of infant | |
| B. bifidum | ATCC 29521T | Infant feces | |
| B. lactis | DSM 10140T | Yogurt | |
| B. catenulatum | DSM 20103T | Intestine of adult | |
| B. adolescentis | ATCC 15703T | Intestine of adult | |
| B. breve | ATCC 15700T | Intestine of infant | |
| B. animalis | ATCC 25527T | Rat feces | |
| L. casei group | NCC 400 | L. paracasei subsp. paracasei | Unknown |
| NCC 438 | L. paracasei subsp. paracasei | Unknown | |
| NCC 476 | L. paracasei subsp. paracasei | Yogurt | |
| NCC 1002 | L. paracasei subsp. paracasei | Milking machine | |
| NCC 2548 | L. paracasei subsp. paracasei | Adult feces | |
| NCC 2556 | L. paracasei subsp. paracasei | Adult feces | |
| NCC 171 | L. paracasei subsp. paracasei | Pizza | |
| NCC 617 | L. casei | Unknown | |
| NCC 596 | L. rhamnosus | Unknown | |
| NCC 587 | L. rhamnosus | Unknown | |
| NCC 2488 | L. rhamnosus | Infant feces | |
| NCC 534 | L. rhamnosus | Unknown | |
| NCC 2455 | L. rhamnosus | Infant feces | |
| NCC 511 | L. paracasei subsp. paracasei | Wine | |
| NCC 500 | L. paracasei subsp. paracasei | Wine | |
| NCC 443 | L. paracasei subsp. paracasei | Wine | |
| NCC 588 | L. paracasei subsp. paracasei | Unknown | |
| NCC 1813 | L. paracasei subsp.paracasei | Unknown | |
| NCC 2501 | L. paracasei subsp. paracasei | Unknown | |
| NCC 558 | L. paracasei subsp. paracasei | Fermented drink | |
| NCC 2472 | L. paracasei subsp. paracasei | Adult feces | |
| NCC 159 | L. paracasei subsp. paracasei | Pizza | |
| NCC 179 | L. paracasei subsp. paracasei | Pizza | |
| NCC 174 | L. paracasei subsp. paracasei | Pizza | |
| NCC 177 | L. paracasei subsp. paracasei | Pizza | |
| NCC 2511 | L. paracasei subsp. paracasei | Unknown | |
| NCC 2537 | L. paracasei subsp. paracasei | Panenone | |
| NCC 108 | L. casei | Unknown | |
| NCC 546 | L. casei | Italian cheese |
a
ATCC, American Type Culture Collection; DSM, Deutsche Sammlung von Mikroorganismen; NCDO, National Collection of Dairy Organisms; CNRZ, Centre National de Recherches Zootechniques; NCC, Nestlé Culture Collection. L. casei group strains were used for species-specific detection.
b
Identification by the multiplex PCR assay described in this study.