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Related Concept Videos

Introduction to Innate and Adaptive Immunity01:21

Introduction to Innate and Adaptive Immunity

The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
Defenses Against Pathogens and Herbivores02:26

Defenses Against Pathogens and Herbivores

Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
What is the Immune System?01:38

What is the Immune System?

Overview
Defense Mechanism Against Infection01:26

Defense Mechanism Against Infection

Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
In addition, many body organ systems have unique defenses against infection. The skin is an intact, multilayered surface preventing invasion by microorganisms unless impaired. Mucous membranes lining the mouth, nose, and eyelids are barriers...
Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Cells of the Innate Immune Response01:28

Cells of the Innate Immune Response

The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...

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Related Experiment Video

Updated: Jun 6, 2026

Poplar Adventitious Roots Induced by Stem Canker Pathogens: An Experimental System for Studying Roots Biology and Light Response-Related Processes
08:04

Poplar Adventitious Roots Induced by Stem Canker Pathogens: An Experimental System for Studying Roots Biology and Light Response-Related Processes

Published on: October 11, 2024

Innate immunity: has poplar made its BED?

Hugo Germain1, Armand Séguin1

  • 1Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du PEPS, PO Box 10380, Stn Sainte-Foy, Québec, QC, G1V 4C7, Canada.

The New Phytologist
|November 20, 2010
PubMed
Summary

Poplar (Populus trichocarpa) has more NBS-LRR genes than Arabidopsis thaliana, suggesting complex plant defense mechanisms. Further research is needed to understand poplar

Area of Science:

  • Plant biology
  • Genomics
  • Plant defense mechanisms

Background:

  • Populus trichocarpa is a perennial model species with bioenergy potential.
  • Its genome sequence reveals similarities to Arabidopsis thaliana.
  • Understanding poplar's defense response is crucial for its application.

Purpose of the Study:

  • To identify genomic components involved in poplar's qualitative defense response.
  • To compare defense mechanisms between Populus and Arabidopsis.
  • To highlight research gaps in poplar pathogen response.

Main Methods:

  • Comparative genomics analysis of NBS-LRR genes.
  • Review of known plant defense signaling pathways.
  • Identification of potential R-proteins and regulators in Populus.

More Related Videos

In Vivo Leaf Inoculation: An Alternative Method to Assess the Disease Resistance of Hybrid Clones in Poplar Breeding of Stem Canker Disease
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In Vivo Leaf Inoculation: An Alternative Method to Assess the Disease Resistance of Hybrid Clones in Poplar Breeding of Stem Canker Disease

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A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa
12:05

A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa

Published on: June 27, 2025

Related Experiment Videos

Last Updated: Jun 6, 2026

Poplar Adventitious Roots Induced by Stem Canker Pathogens: An Experimental System for Studying Roots Biology and Light Response-Related Processes
08:04

Poplar Adventitious Roots Induced by Stem Canker Pathogens: An Experimental System for Studying Roots Biology and Light Response-Related Processes

Published on: October 11, 2024

In Vivo Leaf Inoculation: An Alternative Method to Assess the Disease Resistance of Hybrid Clones in Poplar Breeding of Stem Canker Disease
09:31

In Vivo Leaf Inoculation: An Alternative Method to Assess the Disease Resistance of Hybrid Clones in Poplar Breeding of Stem Canker Disease

Published on: September 20, 2024

A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa
12:05

A Workflow for the Quantitative Assessment of the Endophytic and Epiphytic Bacterial Microbiomes of the Bark of Populus trichocarpa

Published on: June 27, 2025

Main Results:

  • Populus trichocarpa possesses a larger NBS-LRR gene repertoire than Arabidopsis thaliana.
  • Poplar has putative R-proteins with unique structures and potential DNA-binding abilities.
  • Key signaling components for TIR-NB-LRR and CC-NB-LRR pathways are present in Populus.

Conclusions:

  • Populus trichocarpa has a complex genetic basis for qualitative defense.
  • The role of salicylic acid and specific pathogen perception pathways in poplar requires further investigation.
  • Future research should focus on elucidating the functional aspects of poplar's defense components.