Introduction to Mycology Flashcards
Cell wall of fungi is made up of?
Chitin
__ is found in the cell membrane of fungi
Ergosterol
Spores of fungi are used for?
Reproduction
Unicellular that thrives in human temperature
Yeast
Filamentous in nature and thrives in room temperature
Molds
Differential medium for yeast morphology
Cornmeal agar
Yeast produce asexually by _ formation
Blastoconidia
Yeast produce sexually by the formation of _ or _
Ascospore
Basidiospore
Medically-important yeast and yeast-like organisms
Ascomycota
Basidiomycota
Deuteromycota
Produce fluffy, cottony, woolly, or powdery colonies; filamentous fungi
Molds
Basic structural unit of molds
Hyphae
As the hyphae grow, they intertwine to form a loose network known as _
Mycelium
Specialized type of hyphae that is swollen and has branching tips
Antler hyphae
Other term for Non-septate Hyphae
Coenocytic
Specialized type of hyphae that is enlarged and has club-shaped areas
Racquet
Specialized type of hyphae that are root-like structures
Rhizoids
Specialized type of hyphae that are tightly-coiled
Spiral
Specialized type of hyphae with comb-like lateral projections
Pectinate
Hyphae that is divided by partitions
Septate Hyphae
Hyphae that is hollow and multinucleated; without partitions
Non-Septate / Coenocytic
Non-pigmented or lightly-pigmented hyphae is known as _ / _
Hyaline
Moniliaceous
Darkly pigmented hyphae due to the presence of melanin in the cell wall
Phaeoid
Dematiaceous
Special stains used for Phaeoid / Dematiaceous Hyphae
Gomori Methylene stain
Masson Fontana stain
Portion of mycelium that projects above the substrate and produces spores
Aerial
Portion of mycelium that penetrates the substrate and absorbs food
Vegetative
Grow partially as yeast and partially as elongated cells resembling hyphae such as Candida albicans
Yeast-like
Presence of a constriction at the junction of adjacent cells
Pseudohyphae
Dimorphic Fungi exhibits a _ form in the host tissue and in vitro at _
Yeast
37 degrees Celsius
Dimorphic Fungi exhibits a _ form in vitro at _
Mycelial
25 degrees Celsius
Systemic Dimorphic Fungi
Histoplasma capsulatum
Blastomyces dermatitidis
Coccidioides immitis
Paracoccidioides braziliensis
Opportunistic Dimorphic Fungi
Penicillium marneffei
Subcutaneous Dimorphic Fungi
Sporothrix schenchkii
Coccidioides differs from other dimorphic fungi in form in 37 degrees Celsius as it exhibits what form?
Spherule
Type of spore that is formed by two compatible haploid nuclei that are brought together in the same cell
Sexual Spores
Type of spore that is formed by mitosis, generally are resistant to adverse growth conditions
Asexual Spores
Spores produced in a sac-like structure
Ascospore
_ - Club-shaped structure; formed externally on the tip of a pedestal called a _
Basidiospore
Basidium
Spores resulting from the fusion of cells from 2 different hyphae
Oospores