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Decoding Long-Distance Communication Under Mineral Stress: Advances in Vascular Signalling and Molecular Tools for
Chao Xia1,2, Juliana Miranda1, David Mendoza-Cozatl3
1Department of Agronomy and Center for Plant Biology, Purdue University, West Lafayette, Indiana, USA.
Plant, Cell & Environment
|March 17, 2025
Summary
Plants use long-distance signaling to manage mineral deficiencies, coordinating root and shoot responses for better growth. This vascular communication is key for optimizing nutrient uptake and crop resilience.
Area of Science:
- Plant Biology
- Molecular Plant Physiology
- Agricultural Science
Background:
- Mineral nutrients are crucial for plant growth, development, and crop yield.
- Plants employ complex signaling pathways to adapt to mineral deficiency.
- Long-distance signaling is vital for maintaining mineral homeostasis and optimizing plant growth.
Purpose of the Study:
- To review the mechanisms of long-distance signaling under mineral deficiencies.
- To emphasize the role of root-shoot communication in plant adaptation.
- To highlight novel insights and potential applications for crop improvement.
Main Methods:
- Review of existing literature on plant signaling pathways.
- Analysis of molecular, physiological, and morphological plant responses.
- Discussion of advanced molecular tools like TRAP-Seq and single-cell RNA sequencing.
Main Results:
- Vascular tissues, especially companion cells, act as critical hubs for sensing and relaying mineral deficiency signals.
- Long-distance signaling involves the transport of phytohormones, small RNAs, proteins, peptides, and mobile mRNAs.
- These signals mediate systemic responses, including changes in mineral uptake and root morphology.
Conclusions:
- Vascular-mediated communication is essential for plants to adapt to varied mineral environments.
- Understanding these pathways offers new strategies for enhancing crop resilience and mineral use efficiency.
- This review provides a comprehensive overview of current knowledge and future research directions.
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