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Mol. Cells 2009; 28(3): 209-213

Published online September 4, 2009

https://doi.org/10.1007/s10059-009-0124-x

© The Korean Society for Molecular and Cellular Biology

C. elegans Behavior of Preference Choice on
Bacterial Food

Emad Abd-elmoniem Abada, Hyun Sung, Meenakshi Dwivedi, Byung-Jae Park, Sun-Kyung Lee, and Joohong Ahnn

Received: June 22, 2009; Revised: July 13, 2009; Accepted: July 20, 2009

Abstract

Caenorhabditis elegans is a free living soil nematode and thus in its natural habitat, C. elegans encounters many different species of soil bacteria. Although some soil bacteria may be excellent sources of nutrition for the worm, others may be pathogenic. Thus, we undertook a study to understand how C. elegans can identify their preferred food using a simple behavioral assay. We found that there are various species of soil bacteria that C. elegans prefers in comparison to the standard laboratory E. coli strain OP50. In particular, two bacterial strains, Bacillus mycoides and Bacillus soli, were preferred strains. Interestingly, the sole feeding of these bacteria to wild type animals results in extended lifespan through the activation of the autophagic process. Further studies will be required to understand the precise mechanism controlling the behavior of identification and selection of food in C. elegans.

Keywords autophagy, bacterial food, behavior, lifespan, pharyngeal pumping

Article

Communication

Mol. Cells 2009; 28(3): 209-213

Published online September 30, 2009 https://doi.org/10.1007/s10059-009-0124-x

Copyright © The Korean Society for Molecular and Cellular Biology.

C. elegans Behavior of Preference Choice on
Bacterial Food

Emad Abd-elmoniem Abada, Hyun Sung, Meenakshi Dwivedi, Byung-Jae Park, Sun-Kyung Lee, and Joohong Ahnn

Received: June 22, 2009; Revised: July 13, 2009; Accepted: July 20, 2009

Abstract

Caenorhabditis elegans is a free living soil nematode and thus in its natural habitat, C. elegans encounters many different species of soil bacteria. Although some soil bacteria may be excellent sources of nutrition for the worm, others may be pathogenic. Thus, we undertook a study to understand how C. elegans can identify their preferred food using a simple behavioral assay. We found that there are various species of soil bacteria that C. elegans prefers in comparison to the standard laboratory E. coli strain OP50. In particular, two bacterial strains, Bacillus mycoides and Bacillus soli, were preferred strains. Interestingly, the sole feeding of these bacteria to wild type animals results in extended lifespan through the activation of the autophagic process. Further studies will be required to understand the precise mechanism controlling the behavior of identification and selection of food in C. elegans.

Keywords: autophagy, bacterial food, behavior, lifespan, pharyngeal pumping

Mol. Cells
Nov 30, 2023 Vol.46 No.11, pp. 655~725
COVER PICTURE
Kim et al. (pp. 710-724) demonstrated that a pathogen-derived Ralstonia pseudosolanacearum type III effector RipL delays flowering time and enhances susceptibility to bacterial infection in Arabidopsis thaliana. Shown is the RipL-expressing Arabidopsis plant, which displays general dampening of the transcriptional program during pathogen infection, grown in long-day conditions.

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