Specialized endoplasmic reticulum-derived vesicles in plants: Functional diversity, evolution, and biotechnological...

Area of Science:

• Plant Cell Biology
• Molecular Plant Science
• Biotechnology

Background:

• The endoplasmic reticulum (ER) is crucial for protein synthesis, folding, and quality control.
• Secretory proteins typically traffic from the ER to the Golgi apparatus via COPII-coated vesicles.
• Plants possess unique ER-derived vesicles (ERDVs) with distinct transport pathways and functions.

Purpose of the Study:

• To review the functional diversity of specialized ER-derived vesicles (ERDVs) in plants.
• To explore the evolutionary mechanisms behind ERDV formation and specialization.
• To discuss the biotechnological applications of ERDVs.

Main Methods:

• Literature review and synthesis of existing research on ERDVs.
• Comparative analysis of ERDV structures and functions across plant species.
• Examination of genetic and molecular pathways involved in ERDV biogenesis and cargo selection.

Main Results:

• Specialized ERDVs, including protein bodies and ER bodies, accumulate specific proteins like storage proteins, proteases, and myrosinases.
• These ERDVs can operate as independent organelles or mediate Golgi-independent transport to the vacuole.
• ERDVs serve as storage sites and platforms for signal-triggered protein processing and activation.

Conclusions:

• Specialized ERDVs are diverse organelles critical for plant growth, development, and defense.
• Their unique biogenesis and transport mechanisms offer insights into plant cell biology.
• ERDVs hold significant potential for enhancing recombinant protein production and metabolic engineering in plants.