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Beyond the barrier: communication in the root through the endodermis
Neil E Robbins1, Charlotte Trontin1, Lina Duan1
1Department of Plant Biology, Carnegie Institution for Science, Stanford, California 94305 (N.E.R., C.T., L.D., J.R.D.); andDepartment of Biology, Stanford University, Stanford, California 94305 (N.E.R.).
Plant Physiology
|August 16, 2014
Summary
The root endodermis, with its Casparian strip and suberin lamellae, acts as a crucial signaling center for plants. It regulates molecular traffic and facilitates communication essential for plant development and symbiosis.
Area of Science:
- Plant Biology
- Cell Biology
- Root Development
Background:
- The root endodermis forms a vital barrier due to the Casparian strip and suberin lamellae.
- This hydrophobic barrier necessitates that all molecular transport between root domains passes through the endodermis.
Purpose of the Study:
- To review recent findings on the endodermis's roles as a signaling center and a mechanical barrier.
- To explore how the endodermis manages intercellular communication and organogenesis.
Main Methods:
- This review synthesizes recent research findings.
- It integrates evidence from studies on hormone signaling, calcium waves, and plant-fungal symbiosis.
Main Results:
- Evidence suggests the endodermis functions as a critical signaling hub.
- The endodermis presents a mechanical barrier that requires cell-to-cell crosstalk for lateral organ development.
Conclusions:
- The endodermis is essential for regulating molecular transport and intercellular communication in plant roots.
- Understanding the endodermis's dual role is key to comprehending root development and plant-root interactions.
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