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The endomembranes response to cadmium in plants
Jiaxuan Cheng1, Jian Cui1, Shimin Xiao2
1MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, 730000, China.
Plant Physiology and Biochemistry : PPB
|November 13, 2025
Summary
Plants use their endomembrane system to defend against toxic cadmium (Cd) contamination. This involves organelle remodeling and communication for Cd detoxification, crucial for plant health and food safety.
Area of Science:
- Plant Biology
- Environmental Science
- Toxicology
Background:
- Cadmium (Cd) is a highly toxic heavy metal posing environmental and food safety risks.
- Plant endomembrane system plays a critical role in sensing, transporting, detoxifying, and compartmentalizing Cd.
- Cd tolerance involves dynamic endomembrane remodeling, protein trafficking, and organelle crosstalk beyond transcriptional regulation.
Purpose of the Study:
- To summarize structural and functional changes in key organelles (ER, Golgi, vacuoles) under Cd stress.
- To emphasize the dynamic regulation of trafficking machinery and inter-organelle communication in Cd detoxification.
- To propose a conceptual framework linking endomembrane behavior to plant Cd tolerance.
Main Methods:
- Review of current research on Cd stress effects on plant endomembranes.
- Analysis of organelle structural changes and functional mechanisms.
- Emphasis on trafficking machinery and inter-organelle communication.
Main Results:
- Cd stress induces significant structural and functional alterations in the endoplasmic reticulum, Golgi apparatus, and vacuoles.
- Dynamic remodeling of the endomembrane system and organelle crosstalk are key to plant defense against Cd.
- Trafficking machinery plays a crucial role in mediating Cd sensing, transport, and detoxification.
Conclusions:
- The plant endomembrane system is an active defense network against Cd toxicity.
- Understanding endomembrane dynamics provides insights into plant Cd tolerance mechanisms.
- This framework guides phytoremediation strategies and breeding of Cd-tolerant crops.
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