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Updated: Feb 11, 2026
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Protocols for Robust Herbicide Resistance Testing in Different Weed Species
Published on: July 2, 2015
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Bioherbicides: Current knowledge on weed control mechanism.
Ramalingam Radhakrishnan1, Abdulaziz A Alqarawi2, Elsayed Fathi Abd Allah2
1Department of Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea.
Ecotoxicology and Environmental Safety
|April 21, 2018
Summary
Bioherbicides derived from plants and microbes disrupt weed physiology by damaging cell structures and inhibiting essential processes like germination and growth. This review details their modes of action on weed plants.
Area of Science:
- Agricultural Science
- Plant Physiology
- Biotechnology
Background:
- Integrated weed management is crucial for sustainable agriculture.
- Bioherbicides, derived from plants and microbes, offer an eco-friendly approach to weed control.
- Understanding the physiological impact of bioherbicides on weeds is essential for optimizing their application.
Purpose of the Study:
- To review the current knowledge on physiological changes in weeds exposed to bioherbicides.
- To elucidate the modes of action of plant- and microbe-derived bioherbicides on weed physiology.
- To highlight the effects on weed germination and growth.
Main Methods:
- Literature review of studies on bioherbicides and weed physiology.
- Analysis of physiological and biochemical responses in weeds to plant extracts and microbial agents.
- Synthesis of information on cellular damage, metabolic disruption, and hormonal changes.
Main Results:
- Plant-derived bioherbicides damage cell membranes, DNA, and inhibit mitosis and enzyme activity, delaying or preventing germination.
- Weed growth is stunted by reduced cell division, nutrient uptake, and hormone synthesis, coupled with increased reactive oxygen species (ROS).
- Microbial bioherbicides degrade seed coats, utilize endosperm, disrupt cell division via toxins, and induce necrosis and chlorosis, suppressing photosynthesis and key hormones.
Conclusions:
- Bioherbicides exert their effects through diverse physiological disruptions in weed seeds and plants.
- Plant extracts and microbial metabolites interfere with critical cellular processes, leading to inhibited germination and growth.
- Further research into weed physiology under bioherbicide exposure will refine sustainable weed management strategies.
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