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Updated: May 29, 2026

Measuring the Effects of Bacteria on C. Elegans Behavior Using an Egg Retention Assay
Published on: October 22, 2013
Bacterium-induced internal egg hatching frequency is predictive of life span in Caenorhabditis elegans populations
Thomas Mosser1, Ivan Matic, Magali Leroy
1Laboratory of Evolutive, Medical and Molecular Genetics, Inserm U1001, Université Paris Descartes, Sorbonne Paris Cité, Faculté de Médecine Paris Descartes, Paris, France.
Abstract:
Internal egg hatching in Caenorhabditis elegans, "worm bagging," is induced by exposure to bacteria. This study demonstrates that the determination of worm bagging frequency allows for advanced insight into the degree of bacterial pathogenicity and is highly predictive of the survival of worm populations. Therefore, worm bagging frequency can be regarded as a reliable population-wide stress reporter.

