This document discusses the topics of microbiology including the origin and evolution of microbiology, microbial diversity, and microbial anatomy. It describes the major groups of microorganisms like bacteria, archaea, viruses, and protozoa. It discusses Carl Woese's work that suggested prokaryotes divided into two distinct lineages and that all living things can be placed into three domains - bacteria, archaea, and eukarya. The document also covers microbial diversity over time as oxygen levels increased on Earth and describes staining techniques used to study microbial anatomy under the light microscope.

1. MICROBIOLOGY
THE
3 SUB TOPICS
*ORIGIN AND EVOLUTION OF
MICROBIOLOGY
*MICROBIAL DIVERSITY
*MICROBIAL ANATOMY

2. MICROBIOLOGY
THE ORIGIN OF
MICROBIOLOGY
MAJOR GROUPS OF
MICROORGANISMS
BRANCHES OF
MICROBIOLOGY
MICROBIAL
DIVERSITY
CELLULAR
ACCELLULAR
MICROBIAL
ANATOMY
PROKARYOTES
MICROBIAL
EUKARYOTES

3. MAJOR GROUPS OF
MICROORGANISMS
BACTERIA
ARCHAEANS
VIRUSES
PROTOZOA
ALGAE
FUNGI
BRANCHES OF
MICROBIOLOGY
BACTERIOLOGY
MYCOLOGY
PROTOZOOLOGY
VIROLOGY
PARASITOLOGY
PHYCOLOGY

4. Microbial diversity increased as an
oxygen-rich environment developed. Carl
Woese and colleagues, studying ribosomal
RNA sequences, suggest that prokaryotes
divided into two distinct lineages early in
the earth’s evolution. These workers also
suggested that all living things can be
placed into three domains.
Microbial Diversity
3 DOMAINS
BACTERIA
ARCHAEA
EUKARYA OR EUCARYA
* The other groups of microbes such as viruses,
viroids, satellites and prions are NOT included in the
phylogenetic tree of life since they are considered
non-living things by Carl Woese and Associates
being non-cellular.
*Microbial Evolution Earth is estimated to be
4.6 billion years old. First procaryotic cells, as
evident from fossilized remains, appeared
about 3.5-3.8 billion years ago and were likely
anaerobic. Subsequent evolution of
cyanobacteria and oxygenic photosynthesis
occurred 2.5-3.0 billion years ago.

5. • EUKARYOTES;
SIMPLE ORGANISMS
THAT BE VIEWED BY
A LIGHT
MICROSCOPE;
SINGLE CELL OR IN
COLONIES .
• SOME
HETEROTHROPHS,
OTHERS ARE
AUTOTROPHS.
DOMAIN EUKARYA
* PUTTING A COLOR
OR DYE TO THE
SPECIMEN
STAINING
POINTERS:
• STUDY OF
MICROORGANISMS
AND THEIR
ACTIVITIES.
• STUDY OF THE
FORM
STRUCTURE,REPROD
UCTION,
PHYSIOLOGY,
METABOLISM AND
IDENTIFICATION OF
MICROORGANISMS.
MICROBIAL
ANATOMY
PROTOZOA
STAINING
TECHNIQUES
MICROALGAE MICROFUNGI
MICROORGANISMS
OTHER THAN
PROKARYOTES: