Plant Extracellular Vesicles: Current Landscape and Future Directions.

Area of Science:

• Plant biology
• Cell biology
• Biochemistry

Background:

• Plant cells release extracellular vesicles (EVs) similar to those from mammalian and bacterial cells.
• Plant EVs contain proteins, nucleic acids, lipids, and metabolites, but their study is challenging.
• In vitro plant cell cultures offer a viable model for studying plant EVs.

Purpose of the Study:

• To review in vitro sources for isolating plant EVs.
• To summarize structural and biological studies on plant EV molecular cargo.
• To explore the role of plant EVs in plant-pathogen interactions.

Main Methods:

• Isolation of plant EVs from various in vitro cultures (cell, pollen, hairy root, protoplast).
• Structural and biological characterization of isolated plant EVs.
• Analysis of molecular cargo within plant EVs.
• Review of existing literature on plant EV functions and interactions.

Main Results:

• Plant EVs are involved in cell growth, morphogenesis, cell wall composition, and cell-cell communication.
• Plant EVs play a role in plant defense mechanisms against pathogens like fungi, viruses, and bacteria.
• Research on plant EVs is emerging, with significant potential for agricultural and biotechnological applications.

Conclusions:

• In vitro plant cell cultures are crucial for advancing plant EV research.
• Plant EVs have diverse physiological roles and are implicated in plant defense.
• Further research into plant EVs could lead to innovative agricultural and disease management strategies.