obc | what can we learn from microbes?
DESCRIPTION
Maja Rupnik, University of Maribor, Slovenia What can we learn from microbes? http://obc2012.outofthebox.si/TRANSCRIPT
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What can we learn from microbes?
prof. dr. Maja Rupnik
Maribor, Slovenia
Institute of Public
Health Maribor
Medical Faculty
University of Maribor
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Same patterns everywhere
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Microbiologist’s perspective
bacteria viruses fungi algae parasites
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Microorganisms – small but important
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Microorganisms – small but important
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Microorganisms – small but important
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Microorganisms – small but important
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Life on Earth depends on microorganisms
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The meaning of life of a microorganism
food
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The meaning of life of an microorganism
food
• how advances in microbiology have/will
improve quality of our life
• what can we learn when observing
microorganisms – parallels between micro and
macro world
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Problems in paradise?
food
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Heterogeneity is good
• cooperation
• comunication
• tolerance
• antagonism
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low cell density high cell density
Quorum sensing - bacterial communication
critical
mass
reached
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Quorum sensing - bacterial communication
• start producing toxins
(antibiotics)
• start to shine
• start degrading food
(food industry,…)
critical
mass
reached
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Bacterial cooperation
and cheaters
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Useful microbes
food
BIOREMEDIATION
toxic compound side products (WASTE)
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Useful microbes
food
BIOREMEDIATION
toxic compound side products (WASTE)
ethanol, butanol
CO2
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Microbes and humans
food
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Interactions between humans and microbes are
different
beneficial microbes
normal microbiota
(skin, mucosal surfaces, gut)
harmful microbes
pathogens
infectious diseases
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Gut microbiota
deep see ecosystems grass eating animals
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Human gut microbiota
Immunity
protection from pathogens (gut and elsewhere)
allergies
Gut-brain axis
anxieties, depression, emotional behavior
Metabolism
obesity, metabolic disorders