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Updated: May 24, 2026

Characterization of Membrane Transporters by Heterologous Expression in E. coli and Production of Membrane Vesicles
Published on: December 31, 2019
Vacuolar transporters in their physiological context.
Enrico Martinoia1, Stefan Meyer, Alexis De Angeli
1Institute of Plant Biology, University of Zurich, Zurich, Switzerland. enrico.martinoia@botinst.uzh.ch
Plant vacuoles expand tissues using inorganic osmolytes for photosynthesis. Vacuolar transporters, crucial for plant survival and development, are increasingly understood but their mechanisms require further study.
Area of Science:
- Plant Biology
- Cellular Physiology
Background:
- Vacuoles are essential for plant growth, enabling tissue expansion through inorganic osmolyte accumulation.
- Specialized plant cells utilize rapid vacuolar volume changes for survival, involving ion and water transport.
- Seed vacuoles store vital nutrients for early plant development.
Purpose of the Study:
- To review the identification and characterization of vacuolar transporters over the past 15 years.
- To highlight the role of vacuolar transporters in plant metabolism and essential physiological processes.
Main Methods:
- Literature review and synthesis of research on vacuolar transporters.
- Characterization of identified vacuolar transporters and their functions.
Main Results:
- Numerous vacuolar transporters critical for plant growth, survival, and development have been identified and characterized.
- Vacuolar transporters are integrated into a regulatory network controlling plant metabolism.
Conclusions:
- Vacuolar transporters are fundamental to diverse plant processes, from tissue expansion to nutrient storage.
- Despite significant progress, the precise mechanisms and regulatory networks of vacuolar transporters remain a key area for future research.
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