12. microscopic identification of some fungi Flashcards
grossly, on SDA at room temperateure, colonies grow rapidly. they are fluffy to cottony and may appear in colors of pink, purple, yellow, green and other shades
Fusarium
grossly, on SDA at room temperature, they grow rapidly (2-5days) and appear first as flat, white filamentous growth which rapidly becomes blue-green and powdery with sulfur-yellow area scattered over the surface
Aspergillus
grossly, on SDA at room temp, this fungus produces a rapidly growing colony that fills the test tobe or plate with a white fluffy mycelium, becoming gray to brown with age.
mucor
grossly, on SDA at incubated or room temperature, this fungus produces a rapidly growing (2-4) days, coarse wooly colony which soons fills the test tube or plate with a loose, graying mycelium dotted with brown or black sporangia
Rhizopus
grossly, on SDA at room temperature, growth is rapid producing at first while hten becomes bluish0green and very powdery due to abundant spore production
penicillium
grossly, on SDA, this funus grows as creamy, medium sized, and moist to dull colonies.
Candida albicans
microscopically, the hyphae are small septate and give rise to phialides which produce either single-celled microconidia usually borne in gelatinous heads or large macroconidia which are sickle or boat shaped and contain numerous septate
Fusarium
aspergillus grow rapidly in how many days?
2-5days
microscopically, they are characterized by branchiing septate hyphae, some of which terminally bear a conidiophore that expands into a large, inverted flask-shaped vesicle (sac) covered with small philalies that occur only in a single row and around the upper half of the vesicle. Long chains of small, spherical, rough-walled, green conidia from a columnar or radiate mass.
aspergillus
Long chains of small, spherical, rough-walled, green conidia from a columnar or radiate mass.
aspergillus
microscopically, the fungus is characterized by non-septate colorless mycelium without rhizoids. the sporangiophores arise singly from mycelia which may be simple or branched with sporangia or sac containing many spores arising from the apex of each branch.
Mucor
microscopically, this fungus is characterized by a large, broad, non-septate, hyaline mycelium that produces horizontal runners (stolons) which attach at contact points (medium or glass) by rootlike structures called rhizoids. from these contact points arise clusters of long stalk known as sporangiospores, the ends of which are terminated in large round dark walled sporangia
Rhizopus
microscopically, the hyphae are hyaline and septate and produce bluish-like conidiophores. these exhibit branching-metulae from which phialides producing chains of conidia arise
penicillium
microscopically, the hyphae are hyaline and septate and produce bluish-like conidiophores. these exhibit branching-metulae from which phialides producing chains of conidia arise
penicillium
canmicroscopically, they appear as small, oval or budding, yeast like cells, along with mycelia-like fragments of varying thickness and length. the yeast-positive like cells and pseudo-hyphal elements are strongly gram-positive.
candida albicans
