Chemotaxis in the Freshwater Planarian, Dugesia japonica japonica(Behavior Biology and Ecology)

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概要

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• Planarians aggregate on a piece of chick liver added in the glass vessel. This feeding behavior is thought to be a kind of chemotactic one. In the present study we have used blind worms to verify whether they can be attracted by the food source without visual information. Various substances were tested in Dugesia japonica japonica. Among 18 amino acids tested, only leucine and tyrosine showed the slight attractiveness. Bacto Peptone (Difco) strongly attracted the worms. The peptone was filtrated by Sephadex G 50 and the fractions of MW 2,000-5,000 daltons showed positive attractiveness. The fractions were resistant to DNase and RNase but sensitive to trypsin. Vitamins, sugars, nucleosides, nucleotides, and nucleic acids failed to attract the worms. These results suggest that the chemical attractants for the planarians are the peptides consisting of about 10 to 50 amino acids residues.

• 社団法人日本動物学会の論文
• 1985-06-15

著者

• Shimozawa Atsumi

  Department Of Anatomy Dokkyo University School Of Medicine

• MIYAMOTO SACHI

  Department of Anatomy, Dokkyo University School of Medicine

• Miyamoto Sachi

  Department Of Anatomy Dokkyo University School Of Medicine

関連論文

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• Primary Tissue Culture of Cells in the Land Slug Incilaria bilineata
• Chemotaxis in the Freshwater Planarian, Dugesia japonica japonica(Behavior Biology and Ecology)

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