A Petri dish is a flat-lidded dish, typically $${}10$$-$${}11$$ centimeters (cm) in diameter and $${}1$$-$${}1.5$$ cm high, made out of either plastic or glass. In a microbiology lab, Petri dishes are used to hold growth media for cultivating microorganisms.

Petri Dish

Test tubes are cylindrical plastic or glass tubes with rounded bottoms and open tops. In microbiology, they can be used to grow microbes in broth, as well as in semisolid or solid growth media.

Test Tube

An inoculation loop is a handheld tool that ends in a small wire loop. It is used in microbiology to streak microorganisms on agar in a Petri dish or to transfer them between test tubes. To prevent cultures from becoming contaminated, the inoculation loop must be sterilized before each use.

Inoculation Loop

Microbial culturing is a laboratory procedure where a biological sample is placed in special dishes to encourage the growth of microorganisms, such as bacteria or fungi. Because microorganisms require time to reproduce into sufficient quantities, it can take a while before they can be effectively detected and analyzed.

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The study of small organisms ranging from one cell to few cells to no cells at all. It encompasses fields such as virology, bacteriology, protistology, & mycology.

Microbiology

https://openstax.org/details/books/microbiology/

Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

Microbiology is produced through a collaborative publishing agreement between OpenStax and the American Society for Microbiology Press. The book aligns with the curriculum guidelines of the American Society for Microbiology.

OpenStax Microbiology Textbook

References for microbiology

The field of Microbiology impacts society in many positive ways including the discovery and development of antimicrobials,  the use of bioremediation to clean the environment, phage therapy, food production, vaccine development, and genetic engineering.

Microbiology Contributions and it's Impact on Society

Key scientists and their research led to our understandings about the field of Microbiology.

Notable Scientists in Microbiology

What does the field of microbiology study?

Which of the following fields are encompassed by microbiology?

What types of organisms does microbiology study?

Which of the following best describes the scope of microbiology?

Microorganisms, or microbes, are small organisms that are generally too small to be seen without a microscope. They are highly abundant and can be found almost everywhere on Earth, from boiling thermal hot springs to deep beneath the Antarctic ice. While the vast majority of this invisible world remains unexplored, microbiologists continue to discover new ways in which microbes interact with the environment and humans.

Microbes

Microbial Culturing

As microbiology has developed, it has allowed the broader discipline of biology to grow and flourish in previously unimagined ways. Much of human knowledge concerning cells and their genetics is derived from an understanding of microbes, and many tools currently used to study cells originate from work with microorganisms.

Microbiology's Impact on Biology

While microbiology broadly encompasses the study of all microorganisms, microbiologists in practice typically specialize in one of several subfields. These major disciplines include bacteriology (bacteria), mycology (fungi), protozoology (protozoa), parasitology (helminths and other parasites), and virology (viruses). Immunology is also frequently included in microbiology because host-pathogen interactions are central to understanding infectious disease processes. Other areas of specialization include clinical, environmental, applied, and food microbiology.

Disciplines in microbiology

Microbiology studies and clinical practice must be guided by a core set of ethical principles to protect individuals and ensure scientific integrity. Key requirements include conducting studies with integrity, obtaining informed consent from participants, respecting patients' rights, maintaining accurate records, ensuring confidentiality, and communicating honestly. Additionally, all research procedures involving humans must be approved by an institutional review board, and protocols using animals must be cleared by an institutional animal care and use committee.

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