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Morphology and Taxonomy
M and T
31
Microbiology
Graduate
05/19/2012

Additional Microbiology Flashcards

 


 

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Term
Fungal Cell Characteristics 
Definition
Eukaryotic, Mitochondria, ER in cytoplasm 
Term
Cell Membrane 
Definition
Bilayered with innermost layer containing sterols such as ergosterol 
Term
Cell wall is composed of: 
Definition
chitin, glucan, mannans, proteins, polysaccharides, and glycopeptides that are recognized by antigens
Term
yeast or mold 
Definition
two forms of fungal growth 
Term
Monomorphic 
Definition
Fungal growth that occurs as yeast or mold but not both
Term
Dimorphic 
Definition
Growth as yeast or mold depending on environment conditions and temperature
Term

1. asexual spore morphology

2. mode of formation

3. sturcture of spore bearing mycelium

4. arrangment of the spores

Definition
4 Identification tools
Term
hyphae
Definition
grow by longitudinal extension and produce spores
Term
mycelia 
Definition
composed of clumps of intertwined, branching hyphae
Term
septate hyphae
Definition
divided into individual cells by cross walls called septa
Term
pores
Definition
part of septa which organlles can move from one cell to another 
Term
coenocytic hyphae
Definition
are non-septate with nuclei in a continuous mass of cytoplams 
Term
Arthrospores
Definition
hyphal segments that are formed by the fragmentation of hyphae
Term
chlamydospores
Definition
thick-walled spores that are formed terminally or within hyphal segments
Term
Conidiospores
Definition
formed at the tips of hyphae and are either Microconidia(small-unicellular) or macroconidia (large-multicell)
Term
Sporangia 
Definition
spherical, sac like structures containing sporangiospores
Term
Favic chandelier structures
Definition
multiple branched hyphal ens that resemble reindeer antlers
Term
knotted hyphae
Definition
closely twisted, entwined, hyphae forming nodular structures
Term
Pectinate bodies
Definition
hyphal projections that look like broken combs 
Term
Racquet mycelia
Definition
hyphae that consist of a chain of segments, each piece with an enlarged end, giving an appearance of a chain of tennis racquets
Term
Spirals or coiled hyphae 
Definition
are bedspring-likehelical coils that are found at the ends of hyphae 
Term
anamorphs 
Definition
asexual spores that can be simple, single celled bodies or they can be multicellular 
Term
telomorphs 
Definition
sexual reproductive structures 
Term
holomorph
Definition
the whole fungus is known as: 
Term
Phylum Ascomycota 
Definition
sac fungi, sexual reproduction results in an ascus , a saclike sturcture containing 4 to 8 ascospores
Term
Phylum Basidiomycota
Definition
Club fungi, sexual reproduction produces basidiospores that are formed on a club-shaped structure called a basidium
Term
Phylum Zygomycota 
Definition
conjugative fungi, sexual reproduction takes place by simple copulation of the tips of multinucleate hyphea forming large, thick walled zygospores that are resistant to harsh environmental conditions 
Term
Homothallic
Definition
Sexual reproduction occurs when cells of a single colony engage in sexual reporduction (zygomycota)
Term
Heterothallic
Definition
sexual reproduction occurs when cells from 2 different colonies, (+) and (-) hyphae, engage in sexual reproduction 
Term
Phylum Deuteromycota
Definition
Fungi that reproduce only asexually producing conidia 
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