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Updated: Jun 4, 2026

High Throughput Image-Based Phenotyping for Determining Morphological and Physiological Responses to Single and Combined Stresses in Potato
Published on: June 7, 2024
Plant response to stress meets dedifferentiation
Gideon Grafi1, Vered Chalifa-Caspi, Tal Nagar
1French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion, 84990, Israel. ggrafi@bgu.ac.il
Plant cells share a common stress response pathway involving dedifferentiation. This process allows cells to revert to a stem cell-like state to better handle biotic and abiotic stresses.
Area of Science:
- Plant biology
- Cellular stress response
- Molecular genetics
Background:
- Plants activate common genes, known as stress-responsive/inducible genes, under various stress conditions.
- A unifying cellular process underlying plant stress responses is suggested but not fully understood.
- Evidence indicates a convergence of cellular responses to biotic and abiotic stresses.
Purpose of the Study:
- To investigate the common cellular process underlying plant responses to stress.
- To explore the role of cellular dedifferentiation in plant stress adaptation.
- To model the sequence of events from stress perception to new cell fate acquisition.
Main Methods:
- Transcriptome profiling of various plant cell types, including shoot apical meristem stem cells, dedifferentiating protoplasts, and senescing cells.
- Comparative analysis of gene expression patterns under different stress conditions.
- Development of a cellular model for stress response.
Main Results:
- A common cellular response to diverse biotic and abiotic stresses was identified.
- This common response involves cellular dedifferentiation, where cells revert to a stem cell-like state.
- The dedifferentiated state precedes the acquisition of a new cell fate.
Conclusions:
- Cellular dedifferentiation is a conserved mechanism in plant stress response.
- Plants utilize a stem cell-like state as a crucial intermediate step to adapt to stress.
- This model provides a framework for understanding plant resilience under adverse conditions.
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