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mycology glossary
| Term | Definition |
|---|---|
| Collarette | flared or straight-sided cell wall remnant at the tip of a phialide |
| columella | dome-shaped top of a sporangiophore, containing sporangium |
| Conidiophore | hyphal structure that serves as a stalk on which conidia are formed |
| conidia | asexual reproductive structure that forms on the side or end of hyphae or conidiophore |
| dematiaceous | hyphae, conidia, or spores that are brown or black |
| denticle | small, hair-like projection on which a solitary conidium is formed |
| dichotomous | branching of hyphae into 2 equal branches with same diameter as original hyphae |
| Dimorphic | having 2 distinct forms- yeast at 37, mould at 25 |
| Ectothrix | infection outside the hair shaft |
| endothrix | infection with arthroconida within the hair shaft |
| endospore | spore produced within the spherule of C.immitis |
| exudate | droplets of liquid on the surface of a colony |
| Favic chandeliers | antler like hyphae typical of Trichophyton schoeneinii |
| Foot cell | hyphal cell at the conidiophore base- diagnostic of Aspergillus |
| geophilic | usually recovered from soil, occasionally infects humans/animals |
| glabrous | smooth, with or without aerial hyphae |
| globose | round |
| granular | dense conidia resembling sugar granules |
| Hyaline | colorless |
| hyphae | septate or aseptate filament, together compose mycelium |
| intercalary | forming in the middle of a hyphae |
| macroconidia | larger type of conidia, usually multi-celled |
| moniliform | hyphae with swelling at regular intervals like a string of beads |
| muriform | having both transverse and longitudinal septa |
| nodular bodies | knot of twisted hyphae |
| onychomycosis | infection of the nails |
| ostiole | opening in the cell wall of fruiting body through which conidia are released |
| pectinate | hyphal ends which have protuberances resembling a comb |
| pedicel | short filament which attaches a conidium to the hyphae |
| penicillus | brush like conidiogenous structue with 1-3 levels of branches and a terminal phialide |
| perithecium | flask shaped or rounded fruiting body with opening and asci arranged at base of structure |
| phialide | flask shaped conidiogenous cell which neither elongates nor enlarges |
| conidiogenous | structure that produces conidia |
| Pseudohyphae | chains of cells formed by budding that resemble true hyphae. differ by constrictions at septation, branches that begin with septation, and smaller terminal cells |
| pyriform | pear shaped or tear-drop shaped |
| racquet hyphae | hyphae with club shaped cells in which the large end of one call is attached to the smaller end of the next |
| reflexive branching | branches that grow forward and backward at acute angles to the hyphae |
| rhizoid | root-like branching hyphae |
| rugose topography | colony in which furrows radiate out from the center |
| sclerotium | hyphae closely interwoven and cemented together into a hard resistant body |
| septate | having crosswalls |
| spherule | large, round structure containing endospores seen in direct exam, charactoristic of C.immitis |
| sporangiophore | specialized hyphal branch bearing a sporangium |
| sporangiospore | asexual spore produced in sporangium |
| sporangium | closed sac-like structure in which asexual spores are formed |
| stolon | horizontal arial hyphae which give rise to rhizoids and sporangiophores |
| teleomorph | sexual reproductive stage of fungus |
| truncate | conidium with a scar flattened off at the point of attachment |
| Umbonate topography | colony with centre button-shaped elevation |
| uniserate | in Aspergillus, a vesicle bearing a single layer of phialides |
| Verrucose topography | colony furrowed or convoluted |
| verticil | group of conidiogenous cells radiating out from a single point like spokes in a wheel |
| vesicle | inflated end of a conidiophore or sporangiophore |
| yeast-like colony | soft, pasty, smooth colony, usually without filamentous growth |
| zoophilic | found primarily in animals, occasionally infects humans |