Principles of Micro 6 Flashcards
what are the 4 fungal divisions we need to worry about
chytridiomycota, zygomycota 1 and 2, ascomycota, basidiomycota
how does zygomycota pathogenic to humans - where is it found?
seen on food spoilage
two types of zygomycota
zygospore (sexual)
sporangiospore (asexual)
zygomycota are parasites of what? and about how many species are there?
parasites of arthropods and mammals
1000 known species of moulds
how many species of ascomycota
over 31,000 known species with 44 families
what percentage of pathogenic fungi are ascomycota
> 90%
what are examples of ascomycota
penicillium (produces the antibiotic penicillin) candida albicans (saccharomycetaceae family)
how may known species of basidiomycota
over 64,000
what do basidiomycota produce
some produce toxins or hallucinogenic compounds
type of fungi and class basidiomycota belong to
macrofungi (mushroom + puffballs)
class: homobasidiomycetes
example of basidiomycota
agaricus
how many species of chytriomycota and how many are pathogenic
more than 900 species with only one being pathogenic
chytridion means little pot in greek: fun fact
unique features of chytriomycota
motile asexual zoospores (via flagella): reflection of their aquatic habitat
negative aspects of fungi
- food spoilage
- pathogenic to humans and animals (mycose) –> true and opportunistic pathogens
- infection of plants and crops
human mycoses is a fungal infection and is classified by site or type of infection. what are some examples of these classifications?
systemic subcutaneous cutaneous superficial opportunistic mycotoxins
biofilms are used for what microorganisms
bacteria and fungi (candida sp)
third leading cause of intravascular catheter related infections
yeast
advantages of biofilm
increases resistance
resist host immune response
act as reservoir
where can algae be found
freshwater, marine, sometimes terrestrial
medical significance of algae
associated with intoxication/food poisoning
how does one get food poisoning from algae
toxic algae ingested by fish which is then ingested by humans
examples of fish we eat that can lead to algae poisoning
barricades, snappers, ciguatera, paralytic shellfish poisoning
respiratory symptoms in algae poisoning is linked to
red tides
zoonotic protozoal diseases of companion animals
- Toxoplasmosis (T. gondii)
- Giardiasis (Giardia sp.)
- Babesiosis (Babesia sp.)
- Trypanosomiasis (T. cruzi)
- Leishmaniasis (Leishmania sp. )
what is cell wall of algae made of
cellulose
what microorganisms sometimes has more than one nucleus
protozoa
what microorganism does not have a cell wall and is motile (cilia, flagella, endoflagella)
protozoa
