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Chapter 12
Fungi, Protists and Helminths
50
Microbiology
Undergraduate 1
03/02/2011

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Term
mycology
Definition
the study of fungi
Term
characteristics of fungi
Definition
eukaryotic, multicellular except yeast, reproduce sexually and asexually, ave sterols in membranes, cell walls made of glucans, mannans and chitin
Term
thallus
Definition
body of the organism
Term
hyphae
Definition
appendages off the thallus
Term
mycelium
Definition
a mass of hyphae
Term
septate
Definition
individual cells are divided by septae which are porous so the cytoplasm is continuous
Term
coenocytic
Definition
lack a septum
Term
dimorphic fungi
Definition
two forms; yeast at 37 and mold at 25
Term
sporangiospores
Definition
asexual; collection of spores in a cluster, spores come off of the sporangiophore
Term
conidiospores
Definition
asexual; conidia are the spores stuck together in a sting connected to the conidiopher (stem)
Term
blastoconidia
Definition
asexual; have pseudohypha with blastoconidia spores on the tips
Term
chlamydoconidia
Definition
asexual; pseudohyphal growth falls off the clamydoconidium
Term
plasmogamy
Definition
haploid donor cell penetrates cytoplasm of recipient cell
Term
karyogamy
Definition
the nuclei fuse and form a diploid zygote
Term
meiosis
Definition
diploid nuleus produces haploid nucleu to start all over
Term
zygospore
Definition
sexual; fusion of haploid cells
Term
ascospore
Definition
sexual; formed in a sac
Term
basidiospores
Definition
sexual; spores off main body of the fungus on pedestals (basidium)
Term
zygomyota
Definition
coenocytic; produce sporangiospores and zygospores; undergo conjugation
Term
ascomycota
Definition
septate hyphae; ascospores and conidiospores; sexual AND asexual spores; sac fungi
Term
basidiomycota
Definition
septate hyphae; basidispores and some conidiospores; club fungi; ex: cryptococcus neorormns causes systemic mycosis
Term
anamorphs
Definition
asexual spores only; ex: penicillium
Term
systemic mycoses
Definition
fungal infctions deep wihtin the body that affect many tissues and organs
Term
subcutaneous
Definition
fungal infections beneath the skin
Term
cutaneous
Definition
affect tissues such as hair, nails and skin
Term
superficial
Definition
localized on hair shafts and superficial skin cells
Term
opportunistic
Definition
cause by normal flora that if in the right circumstances cause a systemic dieas
Term
economic effect of fungi
Definition
foods, kills termites,
Term
characteristics of protozoa
Definition
unicellular, eukaryotic chemoheterotrophs
Term
fission yeast
Definition
reproduce by binary fission; used in experiments because they are haploid
Term
budding yeasts
Definition
reproduce by budding; leave a scar on parental cell; used for fermentation and bread
Term
trophozoite
Definition
vegetative form of a protozoa
Term
asexual reproduction of protozoa
Definition
fission, budding or schozogony
Term
conjugation in protozoa
Definition
'intimate contact' and macro and other micro from the cells fuse for recombination causing the cells to be 'fertilized'
Term
archaezoa
Definition
lack mitochondira and have flagella; ex: trichomonaas vaginalis and giardia
Term
amoebozoa
Definition
ex: entamoeba
Term
Apicomplexa
Definition
include plasmodium (malaria with mosquitos as intermediate) and cryptosporidium (waterborne and transmitted by fecal oral route)
Term
Apicomplexa
Definition
include plasmodium (malaria with mosquitos as intermediate) and cryptosporidium (waterborne and transmitted by fecal oral route)
Term
Characteristics of helminths
Definition
animalia; multicellular; obligate parasites; elaborate life cycles; reduced digestive system, reduced locomotion, reduced nervous system and complex reproduction
Term
phyla of helminths
Definition
platyhelminthes (flatworms) with trematodes and cestodes and nematoda (roundworms)
Term
monoecious
Definition
hermaphroditic with male and female reproductive systems in on animal
Term
dioecious
Definition
separate male and female
Term
sexual dimorphism
Definition
male and female look different; ex: pinworm
Term
trematodes
Definition
flukes; have oral and ventral suckers to attach, complex reproduction
Term
cestode
Definition
taprworm; has scolex to latch on to wall nd proglittids
Term
proglottids
Definition
segements with male and female parts that shed off tapeworm
Term
humans as the definitive host
Definition
beef tapeworm with cattle as intermediate
Term
humans as the intermediat hose
Definition
exhinococcus granulosus with the dogs, wolves and foxes as definitive
Term
vector
Definition
arthropods taht carry disease; ex: oxides cause lyme disease
Term
transmission
Definition
mechanical transmission; biological transmission-microbe multiplies in vector; and definitive host- microbes sexual reproduction in vector
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