Acquired Type III Secretion System Determines Environmental Fitness of Epidemic Vibrio parahaemolyticus in the Interaction with Bacterivorous Protists
2011

How a Bacterium Survives in Water by Interacting with Tiny Creatures

Sample size: 27 publication 10 minutes Evidence: high

Author Information

Author(s): Matz Carsten, Nouri Bianka, McCarter Linda, Martinez-Urtaza Jaime

Primary Institution: Helmholtz Centre for Infection Research, Braunschweig, Germany

Hypothesis

Does the type III secretion system (T3SS) enhance the environmental fitness of Vibrio parahaemolyticus in interactions with protists?

Conclusion

The study found that the T3SS encoded on genome island VPaI-7 provides Vibrio parahaemolyticus with a fitness advantage in interactions with aquatic protists.

Supporting Evidence

  • T3SS-2 positive strains showed enhanced survival in the presence of protists.
  • Vibrio parahaemolyticus can act as a facultative parasite on protists.
  • Temperature and nutrient levels influenced the survival of Vibrio parahaemolyticus.

Takeaway

This study shows that a bacterium called Vibrio parahaemolyticus can survive better in water by using a special system to attack tiny creatures called protists.

Methodology

The study involved laboratory experiments comparing wild-type strains and mutants of Vibrio parahaemolyticus in the presence of various protists.

Limitations

The study primarily focused on specific strains and may not represent all Vibrio parahaemolyticus interactions in diverse environments.

Participant Demographics

The study included 27 strains of Vibrio parahaemolyticus from environmental and clinical sources across different continents.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1371/journal.pone.0020275

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