Joseph Lister devised antiseptic surgery methods to prevent surgical infections caused by microorganisms
RobertKoch (1843-1910) provided direct evidence that bacteria were disease-causing agents, established Koch's postulates, and made significant contributions to the germ theory of disease
LouisPasteur (1822-1895) discovered forms of life that could exist in the absence of oxygen, introduced the terms “aerobes” and “anaerobes”, developed pasteurization, created a rabies vaccine, and studied alcoholic fermentation
Ignaz Philip Semmelweis used antiseptic procedures to prevent puerperal fever
Alexander Fleming noticed that mold growing on one of his culture plates inhibited the growth of bacteria there, and eventually isolated the substance responsible
In 1796, Edward Jenner reported the use of material scraped from the skin of an individual infected with cowpox to immunize a child against smallpox
Microorganisms are very diverse; they include bacteria, fungi, algae, protozoa, and microscopic plants (green algae); also include viruses
Koch discovered the bacterium (M. tuberculosis) that causes tuberculosis and the bacterium (Vibrio cholerae) that causes cholera
Algae refer to a wide range of plant-like creatures, including single-celled algae essential in microbiology
Fungi are eukaryotic microorganisms such as multicellular molds and unicellular yeasts. They are employed in various industries and some are pathogenic
Fanny Hesse developed the use of agar as a solidifying agent for microbiological media
Two major categories of microbes
Acellular microbes
Cellular microbes
Eukaryotes are cells where genomes are not contained within a nucleus and are larger and more complex than prokaryotic cells
Cellular microbes
Bacteria
Archaea
Some algae
Protozoa
Some fungi
Microbiologists
Koch
Richard J. Petri
Fanny Hesse
Hans ChristianGram
Edward Jenner
Alexander Fleming
Microorganisms are organisms that can be seen only through a microscope
Microorganisms
Bacteria
Fungi
Algae
Protozoa
Viruses
Richard J. Petri developed the Petri dish in which microbial cultures could be grown and manipulated
Koch's work on tuberculin
Ultimately led to the development of a skin test valuable in diagnosing tuberculosis
Hans Christian Gram developed the Gram stain, a stain technique that could be used to separate two major groups of disease-causing bacteria
Acellular microbes
Viruses
Viroids
Virusoids
Prions
In 1928, Alexander Fleming discovered penicillin
Prokaryotes have their genome contained in a nucleus and are probably the smallest living organisms
Bacteria are prokaryotic organisms with no nucleus or nuclear membrane in their cells. They reproduce through binary fission and can survive in various environments
Protozoa are unicellular eukaryotic creatures with various modes of movement. They can cause diseases like malaria and toxoplasmosis
Microbial genetics
Study of how genes are structured and regulated in microbes in relation to their cellular functions
Pure microbiology
Thorough investigation of organisms
Photosynthesis in algae
Most algae catch sunlight and convert it to chemical energy in the form of carbohydrates
Microbial physiology
Study of how the biochemistry of a microbial cell works, including microbial growth, metabolism, and cell structure
Diseases caused by different species
Malaria
Sleeping sickness
Dysentery
Toxoplasmosis
Industrial microbiology
Exploration of microbes for use in industrial processes, including industrial fermentation and wastewater treatment
Microbial ecology
Relationship between microorganisms and their environment
Medicalmicrobiology
Study of pathogenic microbes and the role of microbes in human illness
Evolutionary microbiology categories
Microbial systematics
Microbial taxonomy
Generation microbiology
Phylogeny
Systems microbiology
Astro microbiology
Biological agent
Nano microbiology
Predictive microbiology
Cellular microbiology
Study of how pathogenic microorganisms interact with host cells
Branches of microbiology
Pure microbiology
Applied microbiology
Microbialcytology
Study of microorganisms' microscopic and submicroscopic features
Microbial pathogenesis
Study of the process by which a microorganism causes a disease
Pharmaceutical microbiology
Study of microorganisms involved in the manufacturing of pharmaceutical goods
Applied microbiology
Application of microorganisms to specific processes