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Related Concept Videos

Microbial Interactions: Cooperation01:26

Microbial Interactions: Cooperation

Microbial cooperation involves beneficial interactions in which different species work together for individual or mutual advantage. These interactions can profoundly influence ecological dynamics and evolutionary processes, and they are essential to many pathogenic and symbiotic relationships.Nematode–Bacteria CooperationA striking example is the relationship between the Gram-negative bacterium Xenorhabdus nematophila and the parasitic nematode Steinernema carpocapsae. Juvenile nematodes...
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...
Microbial Interactions: Mutualism01:25

Microbial Interactions: Mutualism

Mutualism is a symbiotic interaction in which all participating organisms benefit. These relationships can be obligate or facultative and are fundamental to ecosystem functions across diverse biological systems.Plant–Fungi MutualismOne well-known example is the association between plant roots and mycorrhizal fungi, such as Rhizophagus species. The fungal hyphae penetrate the root hairs and the epidermis, forming an extensive hyphal network that establishes a symbiotic association. Through this...
Microbe-Plant Interactions01:09

Microbe-Plant Interactions

Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...
Bacterial Flora of the Large Intestine01:29

Bacterial Flora of the Large Intestine

The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
Symbiosis00:58

Symbiosis

Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...

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Related Experiment Video

Updated: May 17, 2026

Preparing and Rearing Axenic Insects with Tissue Cultured Seedlings for Host-Gut Microbiota Interaction Studies of the Leaf Beetle
06:56

Preparing and Rearing Axenic Insects with Tissue Cultured Seedlings for Host-Gut Microbiota Interaction Studies of the Leaf Beetle

Published on: October 8, 2021

Beneficial interactions between insects and gut bacteria.

R Rajagopal1

  • 1Department of Zoology, University of Delhi, New Delhi, 110 007 India.

Indian Journal of Microbiology
|October 27, 2012
PubMed
Summary

Insect gut bacteria are crucial for insect success and diversity. Some bacteria, like Wolbachia, can manipulate insect populations and sex ratios, presenting unique research challenges.

Area of Science:

  • * Entomology and Microbiology: Investigating the symbiotic relationships between insects and their associated bacteria.
  • * Genomics and Bioinformatics: Utilizing 16S rRNA sequencing to explore microbial diversity.

Background:

  • * Insects exhibit remarkable ecological success, occupying diverse niches globally.
  • * Symbiotic bacteria significantly contribute to insect establishment and adaptation.
  • * Specific bacterial endosymbionts, such as Wolbachia and Cardinium, influence insect reproduction.

Purpose of the Study:

  • * To elucidate the diversity of bacteria residing within insect gastrointestinal tracts.
  • * To understand the functional roles these bacteria play in insect biology.
  • * To explore challenges and methods for culturing insect-associated bacteria.

Main Methods:

  • * 16S rRNA gene sequencing for bacterial community profiling.
Keywords:
BacteriaCommensalEndosymbiontsInsect

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Identification of Metabolically Active Bacteria in the Gut of the Generalist Spodoptera littoralis via DNA Stable Isotope Probing Using 13C-Glucose
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Identification of Metabolically Active Bacteria in the Gut of the Generalist Spodoptera littoralis via DNA Stable Isotope Probing Using 13C-Glucose

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Rearing Axenic Delia antiqua with Half-Fermented Sterile Diets
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Last Updated: May 17, 2026

Preparing and Rearing Axenic Insects with Tissue Cultured Seedlings for Host-Gut Microbiota Interaction Studies of the Leaf Beetle
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Preparing and Rearing Axenic Insects with Tissue Cultured Seedlings for Host-Gut Microbiota Interaction Studies of the Leaf Beetle

Published on: October 8, 2021

Identification of Metabolically Active Bacteria in the Gut of the Generalist Spodoptera littoralis via DNA Stable Isotope Probing Using 13C-Glucose
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Identification of Metabolically Active Bacteria in the Gut of the Generalist Spodoptera littoralis via DNA Stable Isotope Probing Using 13C-Glucose

Published on: November 13, 2013

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  • * Microbiological culturing techniques, including insect cell line applications.
  • * Literature review on insect-microbe interactions.

    • Main Results:

    • * Significant bacterial diversity is found in insect guts.
    • * Certain bacteria (e.g., Wolbachia, Cardinium) are implicated in reproductive manipulation.
    • * Many insect-associated bacteria are difficult to culture using standard microbiological methods.

    Conclusions:

    • * Bacterial symbionts are integral to insect ecological success and evolution.
    • * Understanding insect-microbe interactions is key to controlling insect populations.
    • * Further research is needed to overcome culturing challenges for these recalcitrant bacteria.