Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Microbial Interactions: Cooperation

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...

Bacterial Signaling

Bacterial Signaling

Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...

Chemotaxis and Direction of Cell Migration

Chemotaxis and Direction of Cell Migration

Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon towards...

Chemotaxis in E. coli

Chemotaxis in E. coli

Chemotaxis in Escherichia coli is a sensory-driven motility mechanism that enables bacteria to navigate chemical gradients, moving toward beneficial environments while avoiding harmful conditions. This process relies on a signal transduction system integrating external chemical cues with flagellar motor control.Chemoreceptors and Signal DetectionE. coli detects chemical gradients through methyl-accepting chemotaxis proteins (MCPs), which are membrane-bound chemoreceptors that sense attractants...

Anthelminthic Agents

Anthelminthic Agents

Anthelmintic drugs differ significantly from antiparasitic therapies targeting protozoa, primarily due to differences in parasite biology. Whereas most protozoal treatments act on proliferating cells, anthelmintics are typically directed against mature, nonproliferative helminths. The therapeutic approach considers the helminth's reliance on neuromuscular coordination, glucose metabolism, and microtubular integrity for survival, reproduction, and localization within the host. Most anthelmintics...

Microbe-Plant Interactions

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...

You might also read

Related Articles

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

Sort by

Same author

Isolation and identification of a compound from soybean cyst nematode,Heterodera glycines, with sex pheromone activity.

Journal of chemical ecology·2013

Same author

Comparison of soil fungal community structure in different peanut rotation sequences using ribosomal intergenic spacer analysis in relation to aflatoxin-producing fungi.

Phytopathology·2010

Same author

Parthenogenesis in the Two Races of Radopholus similis from Florida.

Journal of nematology·2009

Same author

Karyology and Oogenesis of Radopholus similis (Cobb) Thorne.

Journal of nematology·2009

Same author

Biochemical Identification of the Two Races of Radopholus similis by Starch Gel Electrophoresis.

Journal of nematology·2009

Same author

Biochemical Identification of the Two Races of Radopholus similis by Polyacrylamide Gel Electrophoresis.

Journal of nematology·2009

Search research articles

Related Experiment Video

Updated: Jun 24, 2026

Volatile Sex Pheromone Extraction and Chemoattraction Assay in Caenorhabditis elegans

Volatile Sex Pheromone Extraction and Chemoattraction Assay in Caenorhabditis elegans

Published on: August 9, 2024

Chemical communicators in nematodes.

Journal of Nematology

|March 19, 2009

Summary

Nematodes use chemical signals called semiochemicals, including pheromones and allelochemics, for communication. Understanding these signals is key to developing new nematode management strategies.

Area of Science:

Nematology
Chemical Ecology
Behavioral Biology

Background:

Semiochemicals are chemical signals used in organism communication.
These signals are divided into pheromones (intraspecific) and allelochemics (interspecific).
Nematodes utilize both types of semiochemicals for various biological processes.

Purpose of the Study:

To review the role of semiochemicals in nematode behavior.
To highlight the known and postulated functions of pheromones and allelochemics in nematodes.
To emphasize the importance of understanding these chemical signals for nematode management.

Main Methods:

Literature review of studies on nematode semiochemicals.
Analysis of documented examples of pheromone isolation and function.

Keywords:

allelochemics allomones behavior nematodes pheromones semiochemicals synomones

More Related Videos

Automated Analysis of a Nematode Population-based Chemosensory Preference Assay

Automated Analysis of a Nematode Population-based Chemosensory Preference Assay

Published on: July 13, 2017

Visualizing Bacteria in Nematodes using Fluorescent Microscopy

Visualizing Bacteria in Nematodes using Fluorescent Microscopy

Published on: October 19, 2012

Related Experiment Videos

Last Updated: Jun 24, 2026

Volatile Sex Pheromone Extraction and Chemoattraction Assay in Caenorhabditis elegans

Volatile Sex Pheromone Extraction and Chemoattraction Assay in Caenorhabditis elegans

Published on: August 9, 2024

Automated Analysis of a Nematode Population-based Chemosensory Preference Assay

Automated Analysis of a Nematode Population-based Chemosensory Preference Assay

Published on: July 13, 2017

Visualizing Bacteria in Nematodes using Fluorescent Microscopy

Visualizing Bacteria in Nematodes using Fluorescent Microscopy

Published on: October 19, 2012

Discussion of hypothesized roles of allelochemics in nematode behavior.

Main Results:

Pheromones (sex and aggregation) are confirmed in various nematodes.
Specific sex pheromones isolated from Nippostrongylus brasiliensis and Heterodera glycines.
Epidietic pheromones implicated in dauer juvenile formation in Caenorhabditis elegans.
Allelochemics are postulated to mediate host-finding behavior in nematodes.

Conclusions:

Nematodes employ a range of semiochemicals for intraspecific and interspecific interactions.
Further research into nematode semiochemicals can lead to novel control methods.
Understanding these chemical cues is crucial for effective nematode management strategies.