1 Flashcards
Asexual reproductive structures (mitospores) produced either from the transformation of a vegetative yeast or hyphal cell or from a specialized conidiogenous cell, which may be simple or complex and elaborate
Conidia
Conidia may be formed on specialized hyphae, termed
Conidiophores
Conidia that result from the fragmentation of hyphal cells
Arthroconidia (arthrospores)
Conidialformationthrougha budding process (eg, yeasts)
Blastoconidia(blastospores)
Large, thick- walled, usually spherical conidia produced from terminal or intercalary hyphal cells.
Chlamydospores (chlamydoconidia)
Conidia that are produced by a “vase- shaped” conidiogenous cell termed a phialide (eg, Aspergillus fumigatus
Phialoconidia
Fungi whose cell walls contain melanin, which imparts a brown to black pigment
Dematiaceous fungi
Fungi that have two growth forms, such as a mold and a yeast, which develop under different growth conditions (eg, Blastomyces dermatitidis forms hyphae in vitro and yeasts in tissue).
Dimorphic fungi
Tubular, branching filaments (2–10 μm in width) of fungal cells, the mold form of growth.
Hyphae
Fungi that lack sexual reproduction; they are represented only by an anamorph, the mitotic or asexual reproductive state. They are identified on the basis of asexual reproductive structures (ie, mitospores)
Imperfect fungi
Hyphal or mycelial colony or form of growth.
Mold
Mass or mat of hyphae, mold colony
Mycelium
Fungi that are capable of sexual
reproduction, which is the teleomorph.
Perfect fungi
Chains of elongated buds or blastoconidia
Pseudohyphae
Hyphal cross-wall, typically perforated.
Septum
Asexual structures characteristic of
the Order Mucorales; they are mitotic spores produced within an enclosed sporangium, often supported by one sporangiophore
Sporangiospores
A specialized propagule with enhanced survival value, such as resistance to adverse conditions or structural features that promote dispersion. May result from asexual or sexual reproduction
Spore
During sexual reproduction, haploid cells of compatible strains mate through a process of plasmogamy, karyogamy, and meiosis.
Sexual spores
In the Phylum Ascomycota, following meiosis, four to eight meiospores form within an ascus
Ascospores
In the Phylum Basidiomycota, following meiosis, four meiospores usually form on the surface of a specialized structure, a club-shaped basidium.
Basidiospores
Unicellular, spherical to ellipsoid (3–15 μm) fungal cells that usually reproduce by budding.
Yeasts
