Fungi Lecture Notes
Some General Characteristics:
heterotrophic (use organic compounds a carbon source; they cant make their own
sugars; no photosynthesis)
prefer more acidic conditions than bacteria
can tolerate higher osmotic
Lecture 1 Notes
Why do we study Microbiology?
Impact on Human Health
2. Balance of Nature - food source, play a role in decomposition, help other animals digest
grass (cattle, sheep, termites).
3. Environmental provide safe drinking water; development
Organisms are classified into any particular group because they have certain common
characteristics. Classification of organisms
1.) establishes the criteria for identifying organisms;
2.) it arranges related organisms into groups based on
Germs, Infectious Diseases , and Public Health Notes
The Germ Theory of Disease
What is the germ theory of disease? Microbes (germs) cause disease and specific
microbes cause specific diseases.
Who proved this theory? Robert Koch in the late 1870's.
History of Microbiology Notes
Leeuwenhoeck (lived 1632-1723)
What discovery is he credited with? First person to use microscopes to observe
microbes; as a hobby he made small handheld microscopes; he called microorganisms
The Five Kingdom Classification System
No single classification system is completely accepted by all biologists, but one of the most
widely accepted is the five-kingdom system.
Kingdom Monera prokaryotic; unicellular; most have a cell
Measuring Numbers of Microbes and Growth Factors
A. Indirect Measurements (measure a property of the mass of cells and then ESTIMATE the
number of microbes)
1. Turbidity Can hold tube up to the light and look for cloudiness as evidence of growth
Nematoda (Nematodes) Notes
Nematodes are everywhere! They are freeliving in soil, fresh & salt water, & are parasitic
in plants and animals.
Dioecious (separate sexes).
Possess a nonliving cuticle, which is secreted by the epiderm
General Fungi Characteristics Notes 2 :
The protistan lineages continue into the kingdoms of plants, fungi, and animals.
Limited to a moist environment because they lack a cell wall
Most reproduce asexually by fission
Classification of Fungi Notes
General Groups of Fungi - Yeasts vs. Molds
1. Yeasts - characteristics:
reproduce asexually by budding
reproduce sexually by producing various kinds of spores
aerobic or facultative anaerobes
Selected diseases - Part II
Two Multistate Outbreaks of Human Salmonella Infections Linked to Small Turtles (1-26-2016)
51 people infected with the outbreak strains of Salmonella were reported from 16 states between January 22