Humans and the Microbial World

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Humans and the Microbial World

• Chapter 1

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What is a Microorganism?
1. Definition 2. Prokaryotic or
Eukaryotic? 3. Unicellular or Multicellular?
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What is a Microorganism?
1. Prokaryotic Microbes Bacteria Archaea 2
. Eukaryotic microbes Fungi, Algae and
Protozoa 3. Viruses????
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Microbes and diseases

• Infectious diseases of humans, animals and
  plants.
• Food Spoilage
• Can -gt food poisoning

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Microbes and Human diseases

• Pathogenicity of a microbe
• Vs.
• Resistance of the host
• Etiological agent

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Microbes and Human diseases

• Biological warfare
• Bacillus anthracis, Clostridium botulinum
• Bacterial resistance to antibiotics.
• -very big concern in modern world
• Emerging Infectious diseases
• Ability to infect different Host species
• ex. Avian flu

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Microbes and Human life

• 1. Recycling of chemical elements N2 fixation
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•   2. Decomposition of organic matter sewage
  treatment
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•   3. Bioremediation Pseudomonas and Bacillus

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Bioremediation
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Microbes and Human life

• 4. Insect pest control
• Bacillus thuringensis (insecticide)
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• 5. Food industry vinegar, wine, beer, cheese,
  yogurt, bread, pickles

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Microbes and Human life

• 6. Genetic Engineering production of proteins,
  vaccines, enzymes, growth hormones etc. eg.
  Insulin
• 7. Gene therapy use of viruses to carry
  replacement for defective gene
• 8. Genomics

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How to properly write scientific name of a
microorganism

• Bacillus anthracis
• Bacillus anthracis continuous wrong
• B. anthracis