Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures DNA in microbial cells The tree of life Physiological diversity of microorganisms Prokaryotic Diversity Eukaryotic Microorganisms

Fig 2.1a Internal structure of prokaryotic cells

Fig 2.1a Internal structure of eukaryotic cells

Fig. 2.4 (a) The nucleoid

Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures Nucleus vs. nucleoid double vs. single copy of genes

Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures Nucleus vs. nucleoid Sizes

Fig. 2.3 (c) Size comparisons of viruses and cells

Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures Nucleus vs. nucleoid Sizes Tree of life

Fig. 2.7 The phylogenetic tree of life as defined by comparative ribosomal RNA sequencing

Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures Nucleus vs. nucleoid Sizes Tree of life Physiological diversity of microorganisms Energy and carbon

Fig. 2.8 Metabolic options for obtaining energy

Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures Nucleus vs. nucleoid Sizes Tree of life Physiological diversity of microorganisms Energy and carbon Tolerance of environmental extremes

Table 2.1 Classes and examples of extremophiles

Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures Nucleus vs. nucleoid Sizes Tree of life Physiological diversity of microorganisms Prokaryotic Diversity Bacteria

Fig. 2.9 Phylogenetic tree of bacteria

Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures Nucleus vs. nucleoid Sizes Tree of life Physiological diversity of microorganisms Prokaryotic Diversity Bacteria Archaea

Fig Detailed phylogenetic tree of Archaea

Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures Nucleus vs. nucleoid Sizes Tree of life Physiological diversity of microorganisms Prokaryotic Diversity Eukaryotic Diversity

Fig Detailed tree of Eukarya

Fig. The demise of a Dinoflagellate from the Bronx River.

Lecture 1. Microorganisms: an overview Chapter 1. Microorganisms and Microbiology Chapter 2. An overview of microbial life. Cell and viral structures Nucleus vs. nucleoid Sizes Tree of life Physiological diversity of microorganisms Prokaryotic Diversity Eukaryotic Diversity