Table 3

Rare bacterial species identified using molecular identificationa

PhylumGenusBacterial species confirmed by molecular identificationNo. of isolatesNo. of isolates identified in the CPI periodNo. of isolates identified in the MALDI-TOF MS periodNo. of reports in PubMed48 rare species by PIDPresence/absence of species in our MALDI-TOF MS databasePresence/absence of species in MALDI-TOF MS database (Brüker)
ActinobacteriaActinomycesActinomyces europaeus3129YesPresentPresent
Actinomyces lingnae1011NoAbsentAbsent
Actinomyces radingae53210YesPresentAbsent
Actinomyces urogenitalis2024NoPresentAbsent
ArthrobacterArthrobacter cumminsii5414YesPresentAbsent
BifidobacteriumBifidobacterium scardovii1105NoPresentAbsent
BrachybacteriumBrachybacterium muris1013NoPresentAbsent
Brachybacterium sacelli1013NoAbsentAbsent
BrevibacteriumBrevibacterium massiliense1102YesAbsentAbsent
Brevibacterium otitidis1109NoAbsentAbsent
Brevibacterium paucivorans2113YesPresentAbsent
Brevibacterium ravenspurgense1100YesPresentAbsent
Brevibacterium sanguinis1102NoPresentAbsent
Brevibacterium stationis10110NoPresentAbsent
CorynebacteriumCorynebacterium argentoratense2023NoPresentPresent
Corynebacterium auriscanis3305YesPresentPresent
Corynebacterium confusum1012NoPresentPresent
Corynebacterium coyleae4047YesPresentPresent
Corynebacterium durum1103NoPresentAbsent
Corynebacterium fastidiosum1010YesAbsentAbsent
Corynebacterium imitans1012YesPresentPresent
Corynebacterium kroppenstedtii1019NoPresentPresent
Corynebacterium mucifaciens3036YesPresentPresent
Corynebacterium riegelii1016NoPresentPresent
Corynebacterium ureicelerivorans1013NoPresentPresent
DietziaDietzia cinnamea11010NoPresentAbsent
JanibacterJanibacter hoylei1012NoPresentAbsent
MicrobacteriumMicrobacterium aurum2115NoPresentPresent
Microbacterium chocolatum1101NoAbsentAbsent
Microbacterium flavum1015NoPresentAbsent
NesterenkoniaNesterenkonia lacusekhoensis1014NoPresentAbsent
PropionimicrobiumPropionimicrobium lymphophilum2113NoPresentAbsent
TrueperellaTrueperella abortisuis1105NoPresentAbsent
ZimmermannellaZimmermannella bifida1101YesAbsentAbsent
BacteroidetesAlistipesAlistipes finegoldii1104YesPresentAbsent
BacteroidesBacteroides dorei1108NoAbsentAbsent
ButyricimonasButyricimonas virosa2021YesPresentAbsent
ChryseobacteriumChryseobacterium hominis1014NoPresentAbsent
Chryseobacterium vrystaatense1013NoAbsentAbsent
PeptoniphilusCandidatus Peptoniphilus massiliensis1010NoAbsentAbsent
PorphyromonasPorphyromonas uenonis4402NoPresentAbsent
PrevotellaCandidatus Prevotella conceptionensis”1101YesPresentAbsent
WautersiellaWautersiella falsenii2114NoPresentAbsent
FirmicutesAerosphaeraAerosphaera taetra1100NoPresentAbsent
AnaerococcusAnaerococcus octavius2203YesPresentAbsent
AnaerotruncusAnaerotruncus colihominis2112NoPresentAbsent
LysinibacillusLysinibacillus massiliensis1018NoAbsentAbsent
CatabacterCatabacter hongkongensis1106NoAbsentAbsent
ClostridiumClostridium aldenense1013NoPresentAbsent
DialisterDialister micraerophilus1013NoPresentAbsent
GranulicatellaGranulicatella para-adiacens1012NoPresentAbsent
PeptoniphilusPeptoniphilus harei3217YesPresentAbsent
StreptococcusStreptococcus criceti30310NoPresentPresent
Streptococcus massiliensis2201YesPresentPresent
Streptococcus peroris1016NoPresentPresent
TuricibacterTuricibacter sanguinis1103YesPresentAbsent
FusobacteriaLeptotrichiaLeptotrichia trevisanii5413YesPresentAbsent
ProteobacteriaAcetobacterAcetobacter indonesiensis2209NoAbsentAbsent
AcinetobacterAcinetobacter parvus1108YesPresentPresent
Acinetobacter septicus5413NoPresentAbsent
AurantimonasAurantimonas altamirensis1019NoPresentAbsent
BlastomonasBlastomonas ursincola1105NoPresentPresent
DesulfovibrioDesulfovibrio intestinalis1105NoAbsentAbsent
EnterobacterEnterobacter kobei30310YesPresentPresent
HematobacterHematobacter massiliensis3122NoAbsentAbsent
PandoraeaPandoraea pulmonicola3037YesPresentPresent
PantoeaPantoea brenneri1011NoAbsentAbsent
Pantoea eucrina1012NoPresentAbsent
PseudochrobactrumPseudochrobactrum asaccharolyticum1012NoPresentAbsent
PseudomonasPseudomonas lurida1013NoPresentAbsent
RalstoniaRalstonia insidiosa1015NoPresentAbsent
RoseomonasRoseomonas genomospecies 51106NoAbsentAbsent
RothiaRothia aeria1108NoPresentAbsent
SerratiaSerratia nematodiphila1013NoAbsentAbsent
SphingomonasSphingomonas mucosissima1102NoPresentAbsent
  • a List of 75 rare bacterial species identified using molecular identification; 18 of these species were absent from our MALDI-TOF database, and 57 species from the Brüker database. PID, phenotypic identification; CPI, conventional phenotypic identification (Gram staining, API, Vitek 2 system identification).