# microbiology

> study of microscopic organisms

**Wikidata**: [Q7193](https://www.wikidata.org/wiki/Q7193)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Microbiology)  
**Source**: https://4ort.xyz/entity/microbiology

## Summary
Microbiology is the scientific study of microscopic organisms, encompassing the examination of bacteria, viruses, fungi, and protists. As a major branch of biology, it serves as a foundational science for understanding life at the molecular and cellular levels, with critical applications in medicine, agriculture, and environmental science.

## Key Facts
- Microbiology is classified as a branch of biology and an exact science.
- It is defined as the study of microscopic organisms.
- Major sub-disciplines include bacteriology (study of bacteria), virology (study of viruses), mycology (study of fungi), and protistology (study of protists).
- Applied fields within microbiology include medical microbiology, food microbiology, soil microbiology, and microbial ecology.
- The field bridges with other disciplines through cellular microbiology (bridging microbiology and cell biology) and geomicrobiology (combined study of geology and microbiology).
- Key parameters used in the field include the colony-forming unit (CFU) and the ATP test.
- Prominent organizations include the American Society for Microbiology (founded December 1899) and the Max Planck Institute for Terrestrial Microbiology (established 1991).
- Significant awards include the Carlos J. Finlay UNESCO Prize for Microbiology (inception 1980).
- Major scientific journals dedicated to the field include *Nature Reviews Microbiology* (inception 2003), *PLOS Pathogens* (inception 2005), and the *Journal of Infectious Diseases* (inception 1904).
- The field is closely related to serology (study of serum and bodily fluids) and biomedical sciences.

## FAQs
### What are the primary sub-disciplines of microbiology?
Microbiology is divided into several specialized branches including bacteriology (study of bacteria), virology (study of biological viruses), mycology (study of fungi), and protistology (study of protists). It also encompasses applied fields such as medical microbiology, food microbiology, soil microbiology, and microbial ecology.

### Who are considered the founding figures of microbiology?
Antonie van Leeuwenhoek is known as the "Father of Microbiology" for his work as one of the first microscopists. Other foundational figures include Louis Pasteur, a French chemist and microbiologist, and Robert Koch, a German physician and bacteriologist renowned for his contributions to germ theory.

### What tools and parameters are essential in microbiology?
Essential tools and parameters in the field include the colony-forming unit (CFU), which is a parameter used to estimate the number of viable bacteria or fungal cells in a sample, and the ATP test, a process for rapidly measuring actively growing microorganisms through adenosine triphosphate detection.

### What organizations and awards are prominent in this field?
The American Society for Microbiology is a major scholarly society focused on the discipline, founded in 1899. The Max Planck Institute for Terrestrial Microbiology is a key research institute established in 1991, and the Carlos J. Finlay UNESCO Prize for Microbiology is a significant scientific award established in 1980.

### How does microbiology intersect with other scientific fields?
Microbiology intersects with cell biology through cellular microbiology, which bridges the two disciplines. It connects with geology via geomicrobiology and with medicine through medical microbiology and serology. It is also a fundamental component of biomedical sciences and life sciences.

## Why It Matters
Microbiology is indispensable to modern science and society because it provides the understanding necessary to combat infectious diseases, produce safe food, and maintain environmental health. It drives the development of antibiotics, vaccines, and sterilization protocols that have drastically reduced human mortality. The field's insights into microbial genetics and ecology are pivotal for biotechnology, including genetic engineering and the management of climate change through soil and microbial ecology. By studying the unseen majority of life on Earth, microbiology informs everything from public health policy to the origins of life itself.

## Notable For
- Foundational discoveries in germ theory and vaccination by Louis Pasteur and Robert Koch.
- The discovery of bacterial conjugation and plasmids by Joshua Lederberg, which revolutionized genetics.
- The invention of the Petri dish by Julius Richard Petri, a standard tool in laboratories worldwide.
- The discovery of streptomycin by Selman Abraham Waksman, the first antibiotic effective against tuberculosis.
- The identification of the bacterial cause of stomach ulcers by Barry Marshall and Robin Warren.
- The development of QIIME software by Rob Knight, a standard tool for analyzing microbial communities.
- Pioneering the field of phage therapy through the work of Félix d'Hérelle.
- Establishing the three-domain system of life (Bacteria, Archaea, Eukarya) through the work of Carl Woese.
- The discovery of the CRISPR-Cas9 gene editing technology, involving contributions from Emmanuelle Charpentier.

## Body

### Core Definition and Scope
Microbiology is the scientific study of microscopic organisms, classified as a branch of biology and an exact science. It operates as an academic discipline focused on understanding the structure, function, and behavior of organisms too small to be seen with the naked eye. This field is integral to the broader life sciences and biomedical sciences, serving as a foundation for exploring the complexities of life at the microscopic level. It encompasses both experimental and theoretical approaches, utilizing specialized tools like the colony-forming unit (CFU) for quantification and the ATP test for detecting active microbial growth.

### Major Sub-disciplines and Specializations
The field of microbiology is highly specialized, divided into numerous sub-disciplines that focus on specific types of organisms or applications:
*   **Bacteriology:** The study of bacteria.
*   **Virology:** The scientific study of biological viruses.
*   **Mycology:** The branch of biology concerned with the study of fungi.
*   **Protistology:** The scientific discipline devoted to the study of protists.
*   **Serology:** The scientific study of serum and other bodily fluids.
*   **Medical Microbiology:** A medical specialty focusing on the prevention and treatment of infectious diseases.
*   **Food Microbiology:** The study of microorganisms that inhibit, create, or contaminate food.
*   **Soil Microbiology:** The study of the microbiology of soils.
*   **Microbial Ecology:** The study of the ecology of microorganisms.
*   **Cellular Microbiology:** A discipline that bridges microbiology and cell biology.
*   **Geomicrobiology:** The combined study of geology and microbiology.

### Key Figures and Historical Development
The development of microbiology has been shaped by numerous pioneering figures whose contributions established fundamental principles.
*   **Foundational Figures:** Antonie van Leeuwenhoek (1632–1723) is celebrated as the "Father of Microbiology" and was one of the first microscopists. Louis Pasteur (1822–1895), a French chemist and microbiologist, and Robert Koch (1843–1910), a German physician and bacteriologist, established the germ theory of disease. Julius Richard Petri (1852–1921) invented the Petri dish, revolutionizing laboratory culture methods.
*   **Nobel Laureates and Major Discoverers:** Joshua Lederberg (1925–2008) won the 1958 Nobel Prize in Physiology or Medicine for discovering genetic recombination in bacteria (conjugation) and identifying plasmids. Selman Abraham Waksman discovered streptomycin and many antibiotics. Barry Marshall and Robin Warren received the Nobel Prize for identifying the role of *Helicobacter pylori* in gastritis and peptic ulcer disease. Salvador Luria, François Jacob, and Werner Arber also made Nobel-winning contributions to our understanding of viral genetics and restriction enzymes.
*   **Specialized Contributors:** Martinus Wilhelm Beijerinck (1851–1931) was a Dutch microbiologist known for his work on viruses and nitrogen fixation. Sergei Winogradsky (1856–1953), a Ukrainian microbiologist, pioneered the study of soil microbiology and chemoautotrophy. Félix d'Hérelle (1873–1949) discovered bacteriophages and founded bacteriophage therapy. Carl Woese (1928–2012) redefined the tree of life by identifying archaea as a distinct domain.

### Contemporary Research and Computational Biology
Modern microbiology has expanded into computational and molecular frontiers.
*   **Joshua Lederberg:** Beyond his work in genetics, Lederberg was an early contributor to artificial intelligence and coined the term "exobiology," advising NASA on life detection methods.
*   **Rob Knight:** A New Zealand computational microbiologist (born 1976), Knight is known for developing the QIIME (Quantitative Insights Into Microbial Ecology) software, a standard tool for analyzing microbial communities. His research at the University of California, San Diego, has significantly advanced the understanding of the human microbiome.
*   **Emmanuelle Charpentier:** A French microbiologist and biochemist (born 1968) renowned for her role in discovering the CRISPR-Cas9 gene editing mechanism.
*   **Other Modern Figures:** Notable contemporary researchers include Rita R. Colwell, Peter Palese, Stanley Falkow, and Richard Lenski, who have contributed to fields ranging from cholera epidemiology to virology and experimental evolution.

### Institutional Framework and Global Impact
Microbiology is supported by a global network of institutions and organizations.
*   **Organizations:** The American Society for Microbiology is a primary scholarly society founded in 1899. The Max Planck Institute for Terrestrial Microbiology, established in 1991 in Germany, is a leading research center.
*   **Awards:** The Carlos J. Finlay UNESCO Prize for Microbiology, established in 1980, recognizes significant contributions to the field.
*   **Publications:** Major journals include *Nature Reviews Microbiology* (inception 2003), *PLOS Pathogens* (inception 2005), and the *Journal of Infectious Diseases* (inception 1904), which disseminate critical research findings.

### Related Entities and Connections
The field of microbiology is interconnected with a vast array of scientific entities and figures.
*   **Researchers and Scientists:** The field includes a diverse group of historical and contemporary figures such as Jules Bordet, Albert Kluyver, Esther Lederberg, Thomas D. Brock, Maurice Hilleman, and Carl F. Nathan.
*   **Interdisciplinary Figures:** Individuals like Masanobu Fukuoka (farmer/philosopher), Nick Perumov (writer), and Howard Bloom (publicist) appear in related datasets, indicating the broad cultural and scientific reach of biological concepts.
*   **Related Entities:** The field is closely linked to biomedical sciences, life sciences, and specific tools like the ATP test. It also maintains connections to specific medical facilities like the Marqués de Valdecilla University Hospital and research institutes like the National Centre for Biological Sciences.
*   **Dataset Connections:** The knowledge graph for microbiology also links to entities such as Anastasia Zarycká (Czech tennis player) and Natalya Guseva (Soviet child actress), reflecting the broad associative nature of the source data, though their primary relevance lies outside the scientific discipline.

## References

1. Directory of Open Access Journals
2. AGROVOC
3. Integrated Authority File
4. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=21544)
5. Nuovo soggettario
6. Freebase Data Dumps. 2013
7. [Library of Congress Linked Data Service](http://id.loc.gov/authorities/classification/cf94108937)
8. BBC Things
9. Global Agricultural Concept Space
10. YSO-Wikidata mapping project
11. [Profiles](https://scholar.google.com/citations?view_op=search_authors&hl=en&mauthors=label:microbiology)
12. UMLS 2023
13. Quora
14. [Google News - Microbiology - Latest](https://news.google.com/topics/CAAqJQgKIh9DQkFTRVFvSUwyMHZNRFV3TUhRU0JXVnVMVWRDS0FBUAE?hl=en-SG&gl=SG&ceid=SG%3Aen)
15. General Finnish Ontology
16. Semantic Scholar
17. Medical Subject Headings
18. CABI Thesaurus
19. National Library of Israel
20. KBpedia
21. [Source](https://vocabs.ardc.edu.au/viewById/316)
22. [microbiology · GitHub Topics · GitHub](https://github.com/topics/microbiology)
23. All Science Journal Classification Codes
24. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)