Structures

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The page below is a sample from the LabCE course Mycology: Hyaline and Dematiaceous Fungi. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Structures

Structure/Term Definition Image
Acrotheca
conidia are formed along the sides and ends of club-shaped conidiophores
Aleuriospores
conidia attached to the hyphae by supporting cells that fracture when the conidia are released
Arthroconidia
conidia borne in chains, formed from pre-existing cells in the hyphae
Arthrospores
 same as Arthroconidia
Ascocarp
 protective sac which houses asci, differs from a cleistothecia because it has an opening
(Image Source: Debivort/Commons.wikimedia.org. 2009. Accessed March 6, 2024. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License.)

Asci
 mother cells that produce ascospores inside and can be protected by an ascocarp
Ascosporessexual spore formed after fertilization and then division of the fertilized cell (asci)
(U. of Adelaide)
Aseptate not having cross walls
Chlamydoconidia
thick-walled survival conidia
(U.of Adelaide)
Cleistotheciacompletely enclosed ascocarp, containing asci and ascospores
Conidiaasexual spores (microconidia are small while macroconidia are large)
Conidiophoresa hypha bearing conidia
Dematiaceous dark (melanin-producing)
Dimorphic fungifungi having both at yeast phase (at 37°C) and a mold phase (room temp.)
Dictyospores
spores having horizontal and vertical crosswalls, like layers of cement between bricks
Echinulate
having spiny projections
Hilum
point of attachment
Hyaline
light or clear
Hypha or Hyphae
tubular cell making up the vegetative portion of the mycelium
Mycelia or Myceliummass of hyphae making up a colony of a fungus (mold)
Phialides
flask-shaped projection from the vesicle (top of the conidiophore)
Rhinocladiella sporulation
production of single conidia in succession both laterally and around the tip of a straight phialide
Rhizoids
small, branching hyphae that grow downward from the stolons
Septate
having cross walls
Sporangiophoresa specialized hypha bearing a sporangium
Sporesa unit of asexual or sexual reproduction
Sporodochium
aggregates of macroconidia arranged in loose clusters
Sporangia or Sporangiuman enclosure in which spores are formed
Sterigmata
denticles produced by Basidiomycetes
Stolon
horizontal hypha
(U. of Adelaide)
Sympodial
growth of a succession of apices