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Related Experiment Video

Updated: Jun 28, 2026

Live-Cell Imaging of the Life Cycle of Bacterial Predator Bdellovibrio bacteriovorus using Time-Lapse Fluorescence Microscopy

Live-Cell Imaging of the Life Cycle of Bacterial Predator Bdellovibrio bacteriovorus using Time-Lapse Fluorescence Microscopy

Published on: May 8, 2020

A predatory patchwork: membrane and surface structures of Bdellovibrio bacteriovorus.

Carey Lambert¹, Laura Hobley, Chien-Yi Chang

¹Institute of Genetics, School of Biology, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK.

Advances in Microbial Physiology

|October 22, 2008

Summary

Predatory bacteria, Bdellovibrio bacteriovorus, uniquely attack and digest Gram-negative bacteria. Their specialized cell surfaces facilitate prey invasion and nutrient acquisition for survival.

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Live-Cell Imaging of the Life Cycle of Bacterial Predator Bdellovibrio bacteriovorus using Time-Lapse Fluorescence Microscopy

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Area of Science:

Microbiology
Bacteriology
Cell Biology

Background:

Bdellovibrio bacteriovorus are predatory bacteria that invade and digest Gram-negative prey.
This predatory lifestyle requires specialized cell surface adaptations for prey recognition, attachment, and penetration.
Bdellovibrio possess a unique dual lifestyle, capable of both predatory and saprophytic growth.

Purpose of the Study:

To investigate the specialized cell surface proteins and molecular mechanisms enabling Bdellovibrio bacteriovorus predation.
To understand how Bdellovibrio achieves productive collisions and entry into prey periplasm.
To characterize the surface protein requirements for prey attack and digestion.

Main Methods:

Utilizing molecular genetic and post-genomic approaches.
Enhancing pioneering biochemical studies.
Characterizing key events and surface protein functions during prey attack.

Main Results:

Bdellovibrio cell surfaces are a mosaic of proteins essential for both saprophytic growth and predatory interactions.
Specific surface proteins are crucial for initiating prey collisions, periplasmic entry, and enzyme secretion.
The prey cell (bdelloplast) remains intact during predator replication.

Conclusions:

Bdellovibrio bacteriovorus exhibits highly specialized cell surface structures for its predatory lifestyle.
Understanding these surface proteins is key to deciphering the intricate mechanisms of bacterial predation.
Further research using modern genomic techniques will elucidate more about Bdellovibrio's unique predatory strategies.