Final diagnosis


Browning of the stalk (aureobasidium pullulans)

This stalk, having been attacked by <i> <b> Aureobasidium pullulans </b> </i>, exhibits a characteristic browning.
<i> <b> Aureobasidium pullulans </b> </i> blastoconidia are produced in a tuft from denticles.
This <b> <i> Aureobasidium pullulans </i> </b> hyphae is gradually melanizing to eventually give rise to arthroconidia.
The arthroconids (or chlamydospores) of <i> Aureobasidium pullulans </i> have a thick wall and are melanized.
This colony of <b> <i> Aureobasidium </i> pullulans </b> on malt-agar medium is shaved, has a wet appearance and a pink color at first.