DEFINITION OF TERMS Flashcards
living on dead or decayed organic matter
saprophytic existence
fungal pathogens that exhibit either a yeast/yeast like phase and filamentous form
dimorphic
what temperature does molds form?
25 deg. Cel to 30 deg. Celsius
what temperature does yeasts form?
35 deg. c to 39 deg. C
lacks chlorophyll for photosynthesis
achlorophyllous
what do you call something that lacks roots and stems
thallophytes
two basic morphological forms of fungi
yeasts and molds
shape of fungi
spherical to ovoidal
moist, creamy, opaque or pasty colonies in media
yeast
filamentoous fungi
molds
multicellular, filamentous orgnisms
molds
fluffy, cottony, wooly, or powdery colonies on culture media
molds
structure of molds
hyphae (hypha) & mycelium (mycelia)
branching cylindrical tubules which are basic structural units of molds
hyphae
kinds of hyphae (7)
aseptate septate spirals nodular bodies racquet hyphae
mass or group of countless intertwined hyphae that accumulates during active growth in the mold form
mycelium (mycelia)
types of mycelia
vegetative or substrate mycelium & aerial mycelium
grows on yeast at 37 deg. and molds at 25 deg cel
dimorphism
types of spores for reproduction
sexual spores and asexual spores
formed as a result of nuclear fusion
sexual spores
perfect fungi
sexual spores
spore contained in a sac-like structured called ascus
ascospores
spore formed at the end of the club-shaped structure called basidium
basidiospores
formed by conjugation between two morphologically identical cells
zygospore
formed by heterogeneous fertilization or fusion between unlike or dissimilar cells
oospores
formed without nuclear fusion found in fungi imperfecti
asexual spore
derived from the cells of te body of the fungus
thallospore
term ; body of the fungus
thallus
formed directly from hyphae by fragmentation at points septation
arthrospore
produced by budding with daughter being pinched off from portions of the mother cells
blastospores
in some species, blastoconidia may elongate and remain attached and forms structures called __
pseudohyphae
formed by enlargement of a hyphal cell in which there is a concentration of protoplasm and nutrient material
chlamydospore
large, round thic-walled resistant spores
chlamydospore
types of chlamydospore
intercalary (within the hypha)
sessile (to side of hypha
terminal (at the end of hypha)
asexual spores produced by singly or in groups by specialized vegetative hyphal strand called _____.
(answer the question and then answer the missing underlined word)
conidia
conidiophores
borne directly on the side of the hyphal strand or at the end of a long or short conidiospore
microconidia
other term of macroconidia
fuseaux
usually borne on a short to long conidiopore
macroconidia
large and club-shaped or spindle shaped
macroconidia
what do you call a flask-shaped projections?
phialides
what do you call a radiating chains of conidia
phialoconidia
produce spores in a large sac-like structure termed as ____
spores are released by the rapture of the sporangial wall
zygomycetes
sporangium
classification of fungi
according to categories& clinical classification
\+according to categories ascomycota basidiomycota deuteromycota zygomycota
\+according to clinical classification systemic mycoses superficial or cutaneous mycoses opportunistic mycoses subcutaneous mycoses
asexual fusion results in a sac, or ascus containing 4 to 8 spores (ascospores)
Ascomycota
examples of ascomycota
trichophyton
microsporum
blastomyces
sexual fusion results in formation of a club-shaped organ called a ___, on the surface of which are borne 4 meiotic products (______)
(answer the question first and fill in the blanks)
basidiomycota
basidium
basidiospores
this is not a true phylogenetic group but rather an artificial class into which are temporarily placed all forms in which he sexual process has not yet been observed
deuteromycota
asexual spores produced in indefinite numbers within a structure called ___
sexual fusions results in formation of a resting, thick-walled cell termed as ___
zygomycota
sporagium
zygospore
hair, skin, or nails with direct invasion of the deeper tissues
superficial or cutaneoous mycoses
subcutaneous with dissemination to distant sites
subcutaneous mycoses
affecting different organs
systemic mycoses
fungi that attacks when there is a primary disease or in a immunocompromised host
opportunistic mycoses