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Updated: Jun 19, 2026

A Thermoplasmonic Approach for Investigating Plasma Membrane Repair in Living Cells and Model Membranes

A Thermoplasmonic Approach for Investigating Plasma Membrane Repair in Living Cells and Model Membranes

Published on: January 19, 2024

Plasma membrane repair in plants.

Arnaldo L Schapire¹, Victoriano Valpuesta, Miguel A Botella

¹Laboratorio de Bioquímica y Biotecnología Vegetal, Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus Teatinos s/n, Spain.

Trends in Plant Science

|October 13, 2009

Summary

Cell membrane repair is crucial for survival. A newly discovered plant protein, Arabidopsis SYT1, shows conserved calcium-dependent membrane repair mechanisms between plants and animals.

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Published on: August 25, 2013

Area of Science:

Plant cell biology
Membrane biology
Molecular biology

Background:

Resealing is a vital cell membrane repair process essential for cell survival after disruption.
Plasma membrane repair is well-studied in animals, involving calcium-dependent exocytosis mediated by proteins like synaptotagmins and dysferlin.
Failure in membrane resealing is linked to muscular dystrophies in animals.

Purpose of the Study:

To investigate the existence and components of membrane repair mechanisms in plants.
To identify plant proteins involved in calcium-dependent plasma membrane repair.
To explore the conservation of membrane repair pathways between plants and animals.

Main Methods:

Utilized genetic and cell biological approaches in Arabidopsis.
Investigated the function of the Arabidopsis SYT1 protein in response to plasma membrane damage.
Analyzed the role of calcium signaling in the membrane repair process mediated by SYT1.

Main Results:

Arabidopsis SYT1 was identified as the first plant synaptotagmin involved in membrane repair.
SYT1 participates in calcium-dependent exocytosis to reseal damaged plasma membranes.
This finding provides the first evidence for a conserved membrane repair mechanism in plants.

Conclusions:

The study demonstrates that plants possess functional plasma membrane repair mechanisms.
Arabidopsis SYT1 plays a conserved role in calcium-dependent membrane resealing, similar to animal synaptotagmins.
This suggests a shared evolutionary origin for plasma membrane repair pathways in eukaryotes.