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. 2012 Aug;50(8):2702–2707. doi: 10.1128/JCM.00368-12

Table 1.

Identification of 659 Gram-positive rods using the MALDI-TOF MS Andromas systema

Genus or species No. of isolates tested Identification result (no. of isolates)
Species level Genus level Not identified Error
Actinobaculum spp.b 18 18 0 0 0
    A. schaalii 14 14 0 0 0
    A. massiliense 4 4 0 0 0
Actinomyces spp.b 76 75 1 0 0
    A. europaeus 1 1 0 0 0
    A. funkei 4 4 0 0 0
    A. naeslundii 1 1 0 0 0
    A. neuii 33 33 0 0
    A. odontolyticus 5 5 0 0 0
    A. radingae 6 6 0 0 0
    A. turicensis 23 23 0 0 0
    A. urogenitalis 2 2 0 0 0
    A. viscosus 1 0 1 0 0
Bacillus spp.b 21 21 0 0 0
    B. cereus/B. thuringiensis 10 10 0 0 0
    B. licheniformis 2 2 0 0 0
    B. pumilus/B. safensis 4 4 0 0 0
    B. subtilis 3 3 0 0 0
    B. simplex 2 2 0 0 0
Corynebacterium spp.b 342 338 2 1 1
    C. amycolatum 97 97 0 0 0
    C. aurimucosum 30 27 2 0 1
    C. coyleae 3 3 0 0 0
    C. diphtheriae 40 39 0 1 0
    C. glucuronolyticum 10 10 0 0 0
    C. imitans 2 2 0 0 0
    C. jeikeium 16 16 0 0 0
    C. massiliensis 1 1 0 0 0
    C. pseudodiphtheriticum 10 10 0 0 0
    C. pseudotuberculosis 13 13 0 0 0
    C. simulans 25 25 0 0 0
    C. singulare 1 1 0 0 0
    C. striatum 44 44 0 0 0
    C. tuberculostearicum 18 18 0 0 0
    C. ulcerans 19 19 0 0 0
    C. urealyticum 10 10 0 0 0
Lactobacillus spp.b 30 30 0 0 0
    L. casei 1 1 0 0
    L. crispatus 8 8 0 0 0
    L. delbrueckii 1 1 0 0 0
    L. fermentum 2 2 0 0 0
    L. gasseri 7 7 0 0 0
    L. jensenii 6 6 0 0 0
    L. rhamnosus 5 5 0 0 0
Listeria spp.b 56 4 52 0 0
    L. grayi 4 4 0 0
    L. innocua 5 0 5 0 0
    L. ivanovii 5 0 5 0 0
    L. monocytogenes 32 0 32 0 0
    L. seeligeri 5 0 5 0 0
    L. welshimeri 5 0 5 0 0
Nocardia spp.b 46 42 4 0 0
    N. abscessus 4 4 0 0 0
    N. asteroides 2 2 0 0 0
    N. arthritidis 1 0 1 0 0
    N. beijingensis 3 3 0 0 0
    N. brasiliensis 7 6 1 0 0
    N. cyriacigeorgica 7 6 1 0 0
    N. farcinica 11 10 1 0 0
    N. nova 5 5 0 0
    N. mexicana 1 1 0 0 0
    N. otitidiscavium 2 2 0 0 0
    N. paucivorans 1 1 0 0 0
    N. veterana 2 2 0 0 0
Propionibacterium spp.b 29 29 0 0 0
    P. acnes 11 11 0 0 0
    P. avidum 18 18 0 0 0
Other GPR speciesc 41 41 0 0 0
    Arthrobacter cumminsii 1 1 0 0 0
    Brevibacterium casei 3 3 0 0 0
    Brevibacterium paucivorans 1 1 0 0 0
    Dermabacter hominis 12 12 0 0 0
    Erysipelothrix rhusiopathiae 2 2 0 0 0
    Gardnerella vaginalis 3 3 0 0 0
    Paenibacillus motobuensis 1 1 0 0 0
    Rhodococcus equi 2 2 0 0 0
    Turicella otitidis 16 16 0 0 0
a

The mass spectra of the isolates studied were compared with those of the whole Andromas database, which encompasses more than 700 bacterial species, including 33 genera and 156 species of aerobically growing Gram-positive rods (GPRs).

b

For these genera, the total numbers of taxa included in the Andromas database are 18 Actinomyces, 3 Actinobaculum, 13 Bacillus, 32 Corynebacterium, 24 Lactobacillus, 6 Listeria, 25 Nocardia, and 4 Propionibacterium species.

c

For these genera, the total numbers of taxa included in the Andromas database are 5 Arthrobacter, 6 Brevibacterium, 1 Dermabacter, 1 Erysipelothrix, 1 Gardnerella, and 3 Paenibacillus species, 1 Rhodococcus species, and 1 Turicella species.

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