Phenotypic and genotypic properties of Microbacterium yannicii, a recently described multidrug resistant bacterium isolated from a lung transplanted patient with cystic fibrosis in France

Table 1 Comparison of phenotypic characteristics of M. yannicii PS01 with closely related species

Characteristics	CFM.yannicii	M.yannicii	M.trichothecenolyticum	M.flavescens	M.hominis
Colour of the colony	Yellow	Yellow	Yellow	Yellow White	Yellow White
Motility	No	No	No	No	No
Growth at 29°C	Yes	Yes	Yes	Yes	Yes
Growth at 37°C	Yes	Yes	Yes	Yes	Yes
CAT	+	+	+	+	+
OXI	-	-	-	-	-
apiZYM
Esterase lipase	+	+	W+	W+	+
Cystine arylamidase	W+	+	W+	W+	W+
α-chymotrypsin	-	-	+	+	-
Naphthol-AS-BI-phosphohydrolase	-	+	+	-	-
β-glucuronidase	+	+	-	-	-
α-fucosidase	-	+	W+	-	-
Assimilation of apiCH50
DARA	-	+	-	+	-
RIB	-	+	-	-	-
DXYL	-	+	+	+	+
GAL	-	+	+	-	+
RHA	-	-	-	+	+
NAG	-	-	W+	-	+
MEL	-	+	-	-	-
TRE	+	+	-	+	+
INU	+	-	-	-	-
AMD	-	+	W+	-	+
GLYG	-	+	-	-	+
GEN	-	+	-	-	+
DFUC	+	+	-	-	-
Api CORYNE
Pyr A	-	-	+	+	-
β GUR	+	+	-	-	-
GEL	+	+	-	+	-

Phenotypic characteristics Specific phenotypic characteristics of the CF isolate and comparison with closely related Microbacterium spp. Strain 1: M. yannicii DSM 23203, Strain 2: CF M. yannicii PS01, Strain 3: DSM 8608 M. trichothecenolyticum, Strain 4: DSM 20643 M. flavescens and Strain 5: DSM 12509 M.hominis.
Abbreviation List: + Positive; - Negative; W+ weakly positive; CAT-Catalase; OXI-Oxidase; DARA–D-Arabinose; RIB–Ribose; DXYL–D-Xylose; RHA–L-Rhamnose; NAG–N-AcetylGlucosamine;MEL–D-Mellibiose; TRE–D-Trehalose; INU–Inulin; AMD–Amidon; GLYG–Glycogen; GEN–Gentiobiose; DFUC–D-Fucose; PYRA–Pyroglutamic acid-β-naphthylamide; GUR–Naphthol ASBI-glucuronic acid; GEL–Gelatin (Strictly anaerobic); O–Negative control.

ISSN: 1471-2180