Related Experiment Video
Updated: Aug 1, 2025
05:38
Using Ustilago maydis as a Trojan Horse for In Situ Delivery of Maize Proteins
Published on: February 8, 2019
11.5K
Maize Phytocytokines Modulate Pro-Survival Host Responses and Pathogen Resistance
Maurice Koenig1, Daniel Moser1,2, Julian Leusner1
1Institute for Plant Sciences, University of Cologne, Cologne, Germany.
Molecular Plant-Microbe Interactions : MPMI
|April 27, 2023
Summary
Plant phytocytokines alert cells to danger and activate immune responses. Unlike microbe-associated molecular patterns (MAMPs), these phytocytokines promote plant survival and modulate disease development.
Area of Science:
- Plant immunity
- Molecular signaling
- Plant-pathogen interactions
Background:
- Phytocytokines are plant signaling peptides involved in danger response.
- Downstream effects and impact on plant survival remain largely unknown.
Purpose of the Study:
- Identify and characterize maize phytocytokine orthologues.
- Investigate their role in plant immunity and survival.
Main Methods:
- Identification of maize phytocytokine orthologues.
- Gene expression analysis for immune-related genes.
- Infection assays with fungal pathogens.
Main Results:
- Maize phytocytokines induce immune genes and activate proteases, similar to MAMPs.
- Phytocytokines do not induce cell death upon wounding, unlike MAMPs.
- Phytocytokines modulate fungal disease development via phytohormonal pathways.
Conclusions:
- Phytocytokines and MAMPs trigger distinct, antagonistic immune responses.
- Phytocytokines act as danger and survival signals, promoting plant resilience.
- Further research needed to understand signaling divergence.
More Related Videos
Related Concept Videos
02:26Defenses Against Pathogens and Herbivores
23.9K
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.
23.9K
01:56Plant Hormones
24.3K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
24.3K
01:28Inflammatory Response
2.3K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
2.3K
01:40Cell-mediated Immune Responses
69.3K
Overview
69.3K
02:22Introduction to Plant Diversity
45.3K
From Water to Land
45.3K
01:28Gene Regulation in Microbial Communities: Quorum Sensing
51
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
51