Related Experiment Video
Updated: Mar 9, 2026
07:42
Quantification of the Potential Impact of Glyphosate-Based Products on Microbiomes
Published on: January 10, 2022
4.8K
How glyphosate affects plant disease development: it is more than enhanced susceptibility
1Department of Plant, Soil and Microbial Sciences, 578 Wilson Road, Michigan State University, East Lansing, MI, USA.
Pest Management Science
|January 10, 2017
Summary
Glyphosate can impact plant disease by inhibiting defense compounds. However, glyphosate-resistant crops show no increased disease susceptibility, and glyphosate may even reduce rust diseases.
Area of Science:
- Agricultural science
- Plant pathology
- Biochemistry
Background:
- Plants synthesize phenolic compounds via the shikimic acid pathway for pathogen defense.
- Glyphosate inhibits this pathway, potentially affecting plant disease resistance.
- Glyphosate-resistant crops possess genetic modifications for herbicide tolerance.
Purpose of the Study:
- To investigate the multifaceted effects of glyphosate on plant disease development.
- To assess disease susceptibility in glyphosate-resistant crops.
- To examine the potential fungicidal properties of glyphosate.
Main Methods:
- Review of existing studies on glyphosate's impact on plant defense compounds.
- Analysis of research on disease incidence in glyphosate-treated and glyphosate-resistant crops.
- Evaluation of field observations regarding soil-borne pathogens and crop rotation after glyphosate application.
Main Results:
- Glyphosate application correlates with reduced phenolic compounds and increased disease in some plants.
- Glyphosate-resistant crops, with or without glyphosate application, do not exhibit increased susceptibility to disease.
- Glyphosate application has demonstrated a reduction in rust diseases on resistant crops, suggesting fungicidal activity.
- Temporary increases in soil-borne pathogens post-glyphosate treatment can lead to disease if crops are planted prematurely.
Conclusions:
- Glyphosate's impact on plant disease is complex, affecting plant defense mechanisms.
- Glyphosate resistance traits and herbicide application do not generally increase crop disease susceptibility.
- Glyphosate exhibits potential fungicidal properties, particularly against rust diseases.
- Careful crop rotation is necessary after glyphosate application to mitigate risks from increased soil pathogens.
Keywords:
ClavibacterFusariumPseudomonasPythiumRhizoctoniaSclerotiniabarleybeanfungicideglyphosateglyphosate resistancephytoalexinsplant defenseplant diseaseroot diseaserust diseasesshikimic acid pathwaysoybeansugarbeetwheatMore Related Videos
Related Concept Videos
01:56Plant Hormones
28.1K
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.
28.1K
01:59Plant Breeding and Biotechnology
22.0K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
22.0K
02:22Introduction to Plant Diversity
49.9K
From Water to Land
49.9K
02:26Defenses Against Pathogens and Herbivores
29.8K
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.
29.8K
02:50Transgenic Plants
8.9K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
8.9K
02:41Responses to Drought and Flooding
12.3K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
12.3K