Observation 118327: Penicillium claviforme Bainier
When: 2012-11-29
No herbarium specimen

Notes: Found this growing on an agar plate that had seedlings of Arabidopsis Thaliana. Was left for days in a greenhouse. Isolated in a petri dish on agar.

Proposed Names

76% (1)
Eye3 Eyes3
Recognized by sight: “Matchstick” appearance. Gray heads on reddish-gray stalks, white hyphal layer at base.
Used references: Species name: Bainier, 1905.
Based on microscopic features: Coremiform, head is made up of bunches of conidiaphores supported by phialides. Conidia form chains.

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Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
By: Virginia Tartaglio (vtartaglio)
2012-12-01 23:08:04 CST (-0500)

The easiest way to distinguish Penicillium from Aspergillus is to grab a microscope and look at their conidiophores. They tend to be more elongate and brush-like in Penicillium,whereas they are more rounded in aspergillus (resembles an aspergillum, the shaker Catholic priests use to disperse holy water). Distinguishing between species of Penicillium is much tougher. P. Claviforme is easily recognizable with the naked eye though, because it has distinctive grayish heads (coremia) on reddish, matchstick-looking stalks.

How is Penicillium distinguished
By: Martin Livezey (MLivezey)
2012-11-29 20:46:35 CST (-0500)

within species and from Aspergillus?

Created: 2012-11-29 17:00:46 CST (-0500)
Last modified: 2012-12-02 15:42:40 CST (-0500)
Viewed: 243 times, last viewed: 2016-10-23 22:09:12 CDT (-0400)
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