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Touch insensitive foraging of Caenorhabditis elegans in a constrained structure

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For more content, see Nematologica.

The objective of this study was to clarify the role of touch sensors in the foraging of Caenorhabditis elegans in a constrained structure. The strains tested included an array of mechanosensory mutants insensitive to touch in the body, tail or nose. The mutants and wild type nematodes repeated forward and backward movement in a micro-moulded substrate as on the surface of agar gel. Differences in the foraging pattern were not obvious among mutant groups having different touch sensor deficit in the substrate, and all strains of nematode successfully moved out of the T-shaped structure after searching the configuration of their environment. The results suggest that the touch sensor is a weak contributor to the performance of the worms when foraging, and the behaviour is governed by intrinsic spontaneous patterns in the absence of any stimuli in natural habitat.

Affiliations: 1: National Agricultural Research Center, National Agricultural and Food Research Organization, 3-1-1 Kannondai, Tsukuba, Ibaraki 305-8666, Japan;, Email: eojinu@affrc.go.jp; 2: National Agricultural Research Center, National Agricultural and Food Research Organization, 3-1-1 Kannondai, Tsukuba, Ibaraki 305-8666, Japan

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/content/journals/10.1163/138855409x12465362560511
2009-07-01
2016-12-08

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