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Mechanical Stimulation-induced Calcium Wave Propagation in Cell Monolayers: The Example of Bovine Corneal Endothelial Cells
Published on: July 16, 2013
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Systemic Calcium Wave Propagation in Physcomitrella patens.
Mattia Storti1, Alex Costa2, Serena Golin1
1Dipartimento di Biologia, Università di Padova, Padova, Italy.
Plant & Cell Physiology
|June 8, 2018
Summary
Plants use calcium (Ca2+) waves to respond to dehydration and rehydration. These signaling waves move differently in mosses versus vascular plants, showing varied stress responses.
Area of Science:
- Plant Biology
- Cell Signaling
- Stress Physiology
Background:
- Adaptation to dehydration and rehydration is crucial for photosynthetic organisms.
- Sensing external stimuli and translating them into signaling pathways is essential for plant survival.
Purpose of the Study:
- To investigate the role of calcium (Ca2+) in plant responses to dehydration and rehydration.
- To compare Ca2+ signaling dynamics between the moss Physcomitrella patens and the vascular plant Arabidopsis thaliana.
Main Methods:
- Utilized genetically encoded fluorescent sensors to monitor intracellular Ca2+ concentration.
- Observed Ca2+ dynamics in response to dehydration and rehydration treatments in whole plants.
- Analyzed Ca2+ wave propagation patterns and speeds in different plant species.
Main Results:
- Detected transient increases in Ca2+ concentration in Physcomitrella patens during dehydration and rehydration.
- Observed cell-type-specific sensitivities to osmotic stress and directional Ca2+ wave propagation from base to top in P. patens.
- Found that Ca2+ waves propagated faster in Arabidopsis thaliana compared to P. patens.
Conclusions:
- Systemic Ca2+ propagation occurs in plants even without vascular tissue.
- Differences in Ca2+ wave propagation rates highlight distinct stress response mechanisms between mosses and vascular plants.
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