Unknown 36

Mould identification: a virtual self assessment

Case history

A 43-year-old man with newly diagnosed acute myeloblastic leukaemia and non-insulin-dependent diabetes mellitus developed fungaemia. The diagnosis was based on repeated isolation of the fungus shown below.

Unknown 36 culture

Culture

Unknown 36 microscopy

Microscopy

Sugar assimilation results

Assimilation Tests: + Positive, - Negative, V Variable,
Glucose
+
L-Rhamnose
+
Galactose
+
D-Glucosamine
+
L-Sorbose
v
N-A-D-glucosamine
+
Sucrose
v
Glycerol
v
Maltose
+
Erythritol
+
Cellobiose
+
Ribitol
v
Trehalose
+
Galactitol
-
Lactose
+
D-Mannitol
v
Melibiose
-
D-Glucitol
v
Raffinose
-
∝-M-D-glucoside
+
Melezitose
v
D-Gluconate
+
Soluble Starch
v
DL-Lactate
v
D-Xylose
v
myo-Inositol
v
L-Arabinose
+
Nitrate
-
D-Arabinose
+
2-K-D-gluconate
+
D-Ribose
+
D-Glucuronate
+

This species assimilates L-arabinose but not melibiose. Growth at 37C.

What is your identification?