(sas1)INTRO. TO MYCOLOGY Flashcards
Are multicellular membranes of the plant kingdom, and are referred to as Thallophytes
Fungi
What are the characteristics of Fungi
- Achlorophyllous
- ubiquitous
- Exists in nature as Saprophytes
- resistant to cold
- grow in the presence of acid and large amount of sugar
what are the two (2) basic fundamental structures of Fungi
- Hyphae
2. Spores
what are the two (2) morphologic forms of Fungi
- yeast
2. molds
they produce moist, creamy, opaque, or pasty colonies
yeast
T/F most of the yeast reproduce by sexual budding, few by binary fission
FALSE . Asexual budding
it produces multicellular filamentous colonies; fluffy, cottony, wooly or powdery
Molds
What are the 3 types of Hyphae
- septate (with septum)
- aseptate (without septum)
- mycelium (intertwining strands )
The capability of an organism to grow in more than one form under different environment
Dimorphism
give an example of fungi which exhibits thermal dimorphism
Sporothrix schenkii
An organism that grows only in ONE form may it be at room temp or at a higher temperature
Monomorphic
it is called perfect fungus
Sexual (teleomorph)
it is called imperfect fungus
Asexual (anamorph)
derived from fusion of non-identical cells from the same hyphae
Oospores
derived form fusion of identical cells form the same hyphae
Zygospores/zygomycetes
enclosed in a specific sac called ascus (asci)
ascospores/ascomycetes
enclosed in a club-shaped structures called basidia pr basidium
basidiospores/basidiomycetes
a form of hyphae that is curved, freely branching and antler in appearance
Antler hyphae/ favic chandelier
a coiled or corkscrew seen within hyphal strands, frequently found in dermatophytes
Spiral hyphae
enlarged, club-shaped with the smaller end attached to the large end of the adjacent club-shaped strands
Racquet hyphae
derived from the cells of the thallus or body of the fungi
thalospores
buds formed from budding process, sprouting form the surfaces of the parent cell
Blastospores
what are the examples of blastospores
- candida albicans
- cryptococcus neoformans
arise by fragmentation of the ends of the hyphae at the point of septation; square barrel-shaped thick wall cells
arthrospores/arthroconidia
when hyphal cells separate from one another to form flat ended spores
Oidia
what is an example of Oidia
geotrichum candidum
enlarged, round unicellular thick walled structures that are formed during unfavorable conditions; formed by the enlargement of a hyphal cell
Chlamydospores/chlamydoconidi
what are the three (3) types of chlamydospores
- terminal
- intercalary
- sessile
a type of chlamydospores in which hyphal strand is found at the side
sessile
a type of chlamydospores in which hyphal strand is found at the tip
terminal
a type of chlamydospores in which hyphal strand is found within
intercalary
a specialized vegetative strands/branch where vesicle is born
Conidia/ conidiophore
considered the basic structural unit of fungi?
hyphae
a term which refers to a hyphal that forms a mass of intertwining strand
mycelium
what are the two (2) structures of molds
vegetative and reproductive
