Mycology Week Two Worksheet

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Last updated 3:24 AM on 10/7/26
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8 Terms

1
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Aspergillus flavus

  • Macroscopic:

    • front: yellow-green with white border, velvetly to wooly

    • reverse: cream to tan to yellowish

  • Microscopic:

    • phialide rise circumferentially from the vesicle (radiate conidia orientation) - mostly biseriate


<ul><li><p>Macroscopic:</p><ul><li><p>front: yellow-green with white border, velvetly to wooly</p></li><li><p>reverse: cream to tan to yellowish</p></li></ul></li><li><p>Microscopic:</p><ul><li><p>phialide rise circumferentially from the vesicle (radiate conidia orientation) - mostly biseriate</p></li></ul></li></ul><p></p>
2
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Aspergillus fumigatus

  • Macroscopic:

    • front: bluish green with white border, velvetly to wooly

    • reverse: white to tan

  • Microscopic:

    • phialide and conidia extend from the top half (or 2/3) of the vesicle (columnar conidia orientation) - uniseriate


<ul><li><p>Macroscopic:</p><ul><li><p>front: bluish green with white border, velvetly to wooly</p></li><li><p>reverse: white to tan</p></li></ul></li><li><p>Microscopic:</p><ul><li><p>phialide and conidia extend from the top half (or 2/3) of the vesicle (columnar conidia orientation) - uniseriate</p></li></ul></li></ul><p></p>
3
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Aspergillus niger

  • Macroscopic:

    • front: jet black with white border, velvetly to wooly

    • reverse: white to tan to pale yellowish

  • Microscopic:

    • phialides arise circumferentially and black conidia can observe the vesicle (radiate conidia orientation) - biseriate


<ul><li><p>Macroscopic:</p><ul><li><p>front: jet black with white border, velvetly to wooly</p></li><li><p>reverse: white to tan to pale yellowish</p></li></ul></li><li><p>Microscopic:</p><ul><li><p>phialides arise circumferentially and black conidia can observe the vesicle (radiate conidia orientation) - biseriate</p></li></ul></li></ul><p></p>
4
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Fusarium sp.

  • Macroscopic:

    • front: cottony, white to pink, purple or brown

    • reverse: varies

  • Microscopic:

    • phialides support macroconidia (3-6 cells) which are sickle-cell shaped, with a distinctive foot cell; microconidia occurs in balls


<ul><li><p>Macroscopic:</p><ul><li><p>front: cottony, white to pink, purple or brown</p></li><li><p>reverse: varies</p></li></ul></li><li><p>Microscopic:</p><ul><li><p>phialides support macroconidia (3-6 cells) which are sickle-cell shaped, with a distinctive foot cell; microconidia occurs in balls</p></li></ul></li></ul><p></p>
5
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Paecilomyces sp.

  • Macroscopic:

    • front: powdery to cottony, tan to yellowish brown

    • reverse: may appear darker

  • Microscopic:

    • long, narrow-pecked, penicillus-type phialides (swollen at their base) bear chains of oval or spindle-shaped phialoconidia


<ul><li><p>Macroscopic:</p><ul><li><p>front: powdery to cottony, tan to yellowish brown</p></li><li><p>reverse: may appear darker</p></li></ul></li><li><p>Microscopic:</p><ul><li><p>long, narrow-pecked, penicillus-type phialides (swollen at their base) bear chains of oval or spindle-shaped phialoconidia</p></li></ul></li></ul><p></p>
6
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Penicillium sp.

  • Macroscopic:

    • front: velvetly to powdery, blue green with white border

    • reverse: pale cream

  • Microscopic:

    • Flask-shaped phialides (produced singly, in groups or from branched metulae - brush-like apperance) support chains of round phialoconidia

    • oval or cylindrical yeast cells; budding or planate division


<ul><li><p>Macroscopic:</p><ul><li><p>front: velvetly to powdery, blue green with white border</p></li><li><p>reverse: pale cream</p></li></ul></li><li><p>Microscopic:</p><ul><li><p>Flask-shaped phialides (produced singly, in groups or from branched metulae - brush-like apperance) support chains of round phialoconidia</p></li><li><p>oval or cylindrical yeast cells; budding or planate division</p></li></ul></li></ul><p></p>
7
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Sarocladium sp. (formerly Acremonium)

  • Macroscopic:

    • front: dry, felt-like (waxy), off-white

    • reverse: yellowish

  • Microscopic:

    • tapering, slender conidiophores (or phialides) that form at an upright angle from the hyphae

    • one or 2-celled, elliptical phialoconidia that are held together by a mucoid substance (“slimy-balls"“) at the tip of the phialides


<ul><li><p>Macroscopic:</p><ul><li><p>front: dry, felt-like (waxy), off-white</p></li><li><p>reverse: yellowish</p></li></ul></li><li><p>Microscopic:</p><ul><li><p>tapering, slender conidiophores (or phialides) that form at an upright angle from the hyphae</p></li><li><p>one or 2-celled, elliptical phialoconidia that are held together by a mucoid substance (“slimy-balls"“) at the tip of the phialides</p></li></ul></li></ul><p></p>
8
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Scopulariopsis sp.

  • Macroscopic:

    • front: velvetly to powdery, off-white

    • reverse: honey golden brown

  • Microscopic:

    • penicillus-shaped annellophores support annelides

    • annelides support large-lemon shaped anneloconidia (may be echiulate or spiny with age)


<ul><li><p>Macroscopic: </p><ul><li><p>front: velvetly to powdery, off-white</p></li><li><p>reverse: honey golden brown</p></li></ul></li><li><p>Microscopic:</p><ul><li><p>penicillus-shaped annellophores support annelides</p></li><li><p>annelides support large-lemon shaped anneloconidia (may be echiulate or spiny with age)</p></li></ul></li></ul><p></p>