Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Microbiota of the Stomach and Small Intestine01:27

Microbiota of the Stomach and Small Intestine

The human gastrointestinal (GI) tract is characterized by distinct physicochemical conditions that shape its microbial communities. Among these, the stomach presents a particularly challenging environment for microbial colonization due to its highly acidic pH, ranging from 1 to 3. This extreme acidity effectively limits microbial density. However, certain acid-tolerant microorganisms are capable of surviving in this niche. Notably, Helicobacter pylori can colonize the gastric mucosa,...
Development of Human Microbiota01:30

Development of Human Microbiota

The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...
Functions of the Gut Microbiota01:18

Functions of the Gut Microbiota

The gut microbiota includes trillions of microorganisms that colonize the human gastrointestinal tract, including bacteria, archaea, viruses, and fungi. This complex ecosystem plays a critical role in maintaining intestinal and systemic health. Most of these microbes inhabit the large intestine, establishing a relatively stable and diverse community that contributes to gut homeostasis through various metabolic, immunological, and protective mechanisms.Dominant bacterial phyla, such as...
Microbiota of the Large Intestine01:27

Microbiota of the Large Intestine

The large intestine hosts the most densely populated microbial ecosystem in the human body. This complex community primarily consists of anaerobic bacteria, with Bacillota (formerly Firmicutes) and Bacteroidota (formerly Bacteroidetes) as the predominant groups. The distribution of these microbes varies along different sections of the large intestine, influenced by local environmental factors such as oxygen availability and nutrient composition.The cecum, located at the beginning of the large...
Introduction to the Human Microbiota01:22

Introduction to the Human Microbiota

Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity, and disease...
Anatomy of the Intestines01:23

Anatomy of the Intestines

Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the small...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Biodegradability of commercial biopolyesters in marine sediments under anoxic conditions.

Chemosphere·2026
Same author

From "synthetic" to defined microbial communities for clearer terminology.

Nature communications·2026
Same author

Reducing Antimicrobial Resistance in Poultry Carcasses Extends Beyond Farm-Level Interventions.

Foods (Basel, Switzerland)·2026
Same author

Metagenomic profiling reveals distinct signatures of pathogens, antibiotic-resistance genes and human viruses in urban river mouths of the north-western Adriatic coast.

Scientific reports·2026
Same author

System design and habitat type drive microbial communities in recirculating aquaculture systems: comparison of conventional fish-only and sustainable aquaponic systems.

Frontiers in microbiology·2026
Same author

Disrupted gut microbiome networks and unhealthy behaviors predict metabolic dysfunction in children and adolescents in the long term.

iScience·2026

Related Experiment Video

Updated: May 21, 2026

Quantitative Polymerase Chain Reaction-based Analyses of Murine Intestinal Microbiota After Oral Antibiotic Treatment
08:33

Quantitative Polymerase Chain Reaction-based Analyses of Murine Intestinal Microbiota After Oral Antibiotic Treatment

Published on: November 17, 2018

Intestinal microbiota is a plastic factor responding to environmental changes.

Marco Candela1, Elena Biagi, Simone Maccaferri

  • 1Department of Pharmaceutical Sciences, University of Bologna, Bologna, Italy. marco.candela@unibo.it

Trends in Microbiology
|June 8, 2012
PubMed
Summary
This summary is machine-generated.

The human intestinal microbiota, once thought stable, is highly adaptable to environmental factors. Understanding these shifts is key to managing its role in health and disease.

More Related Videos

An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota
07:15

An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota

Published on: July 31, 2019

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions
05:27

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions

Published on: June 30, 2021

Related Experiment Videos

Last Updated: May 21, 2026

Quantitative Polymerase Chain Reaction-based Analyses of Murine Intestinal Microbiota After Oral Antibiotic Treatment
08:33

Quantitative Polymerase Chain Reaction-based Analyses of Murine Intestinal Microbiota After Oral Antibiotic Treatment

Published on: November 17, 2018

An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota
07:15

An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota

Published on: July 31, 2019

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions
05:27

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions

Published on: June 30, 2021

Area of Science:

  • Microbiology
  • Immunology
  • Metabolism

Background:

  • The intestinal microbiota was traditionally considered stable throughout life.
  • It is now recognized as a dynamic entity influenced by environmental factors.
  • Microbiota fluctuations aid host adaptation to environmental changes.

Purpose of the Study:

  • To explore the plasticity of the intestinal microbiota.
  • To understand the mechanisms behind microbiota shifts.
  • To clarify the role of the human intestinal microbiota in health and disease.

Main Methods:

  • This study is a review of current research on intestinal microbiota dynamics.
  • It synthesizes findings on environmental influences and host responses.
  • Mechanistic insights into microbiota reconfiguration are discussed.

Main Results:

  • The intestinal microbiota is highly plastic and reconfigurable.
  • Environmental factors can disrupt the homeostatic equilibrium of the microbiota.
  • Shifts occur from mutualistic to disease-associated profiles.

Conclusions:

  • A deeper mechanistic understanding of microbiota dynamics is crucial.
  • This knowledge will enable more rational approaches to microbiota-related health and disease.
  • The dynamic nature of the gut microbiome impacts host health significantly.