Chapter 27 Flashcards
environmental microbio
microbiome def
the microorganisms in a particular envrionment
where do microbes flourish
in every habitat on earth
microbial ecology def
the study of the interrelationships among microorganisms and their environment
biodiversity def
the # of species in a given ecosystem
biomass
the mass of all organisms in an ecosystem
what are the most abundant in biodiversity and biomass
microorganisms
competition def
best adapted microbes have advantageous traits
antagonism def
one microbe actively inhibits the growth of another
cooperation def
microbes makes environment favoable for others
bioremediation def
using organisms to clean up toxic, hazardous, or recalicitrant compounds and decreasing them to harmless compounds
examples of bioremediation
soil microbes, methanogens, degradation of plastics, cleaning oil spills
biogeochemical cycles def
processes by which organisms convert elements from one form to another
nitrogen cycle overview
atmospheric N2 that is unusable is cycled by microbes to usable nitrogen forms
what are the levels of soil
top soil,, subsoil,, bedrock
where are most microbes found
top soil
what characteristics dictate microbe content
pH, oxygen, moisture, temp, nutrients
what is aquatic MB
the study of microbes in freshwater and marine environments
water ecosystems have more or less microbes than soil and why
less because the water dilutes the nutrients
where do biofilms form (aquatic lly)
on the surface
microbiome of humans def.
organisms that colonize the bodys surface without normally causing disease
dysbiosis def
persistent imbalance in microbial community usuallly due to reduction in microbial diversity
what is opportunistic pathogens refering to
normal microbiota that cause disease in certain circumstances
they usually move to and unusual site in the body and change the normal microbiota
gut microbiome infor
can influence many systems in body
dysbiosis in the gut could lead to what
stress, anxiety, heart issues, and so many other implications throughout the whole body
where is the c. difficile disease happen
in the gut
how to treat c. difficile
with FMT. a fecal microbiota transplant
what does c.difficile do
limites many heatlhy gut species and causes dysbiosis
what does FMT do
places donor fecal matter with high microbiome diversity into and individual with gut dysbiosis.
before and after FMT
before there are many proteobacteria
after the proteobacteria are eliminated and microviridae are increased
what organisms are abundant on the skin
different organisms are abundant in differey body locations
what is candida auris
a fungal pathogen common in the healthcare environment
what two states determine candida auris population
malassezia which prevents it and the candida species inhances it.
