Rickettsia ‘In’ and ‘Out’: Two Different Localization Patterns of a Bacterial Symbiont in the Same Insect Species
2011

Two Different Localization Patterns of Rickettsia in Whiteflies

publication Evidence: moderate

Author Information

Author(s): Caspi-Fluger Ayelet, Inbar Moshe, Mozes-Daube Netta, Mouton Laurence, Hunter Martha S., Zchori-Fein Einat

Primary Institution: Newe-Ya'ar Research Center, ARO, Ramat-Yishay, Israel

Hypothesis

Does localization pattern affect the density of Rickettsia?

Conclusion

The localization pattern of Rickettsia in whiteflies influences its density and potential for horizontal transmission to parasitoid wasps.

Supporting Evidence

  • Rickettsia densities were found to be 21 times higher in the confined pattern compared to the scattered pattern on the first day post-adult emergence.
  • Real-time PCR analysis showed different dynamics for the two localization types.
  • Rickettsia was detected in the gut of parasitoid wasps only when they developed on whiteflies with the scattered pattern.

Takeaway

This study found that Rickettsia bacteria can live in two different ways inside the same type of whitefly, which affects how many bacteria there are and how they can spread to other insects.

Methodology

The study involved rearing whiteflies with different Rickettsia localization patterns and analyzing their densities using real-time PCR.

Limitations

The study does not determine the exact mechanisms behind the differences in Rickettsia densities between the two localization patterns.

Statistical Information

P-Value

p<<0.01

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0021096

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