title: Caenorhabditis elegans mutants having altered preference of chemotaxis behavior during simultaneous presentation of two chemoattractants.
abstract: Upon presentation of two distinct chemoattractants such as sodium acetate and diacetyl simultaneously, the nematode Caenorhabditis elegans was preferentially attracted by one of these chemoattractants. We isolated two mutants having altered preference of chemotaxis behavior toward simultaneous presentation of sodium acetate and diacetyl. The chep-1(qr1) (CHEmosensory Preference) mutant preferred sodium acetate to diacetyl, while the chep-2(qr2) mutant preferred diacetyl to sodium acetate in simultaneous presentation of these chemoattractants. The chemotaxis behavior of chep-2(qr2) mutant in simultaneous presentation suggests a function of chep-2 gene products within the chemosensory informational integration pathway as well as in the chemosensory pathway.
authors.affiliation: Department of Computer and Information Science, Graduate School of Engineering, Iwate University, Ueda, Morioka, Japan.
authors.forename: Lin
authors.initials: L
authors.lastname: Lin
authors.forename: Tokumitsu
authors.initials: T
authors.lastname: Wakabayashi
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Oikawa
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Sato
authors.forename: Tarou
authors.initials: T
authors.lastname: Ogurusu
authors.forename: Ryuzo
authors.initials: R
authors.lastname: Shingai
mesh_terms: D000818:Animals; D017173:Caenorhabditis elegans / Q000166:cytology* / Q000187:drug effects / Q000235:genetics*; D002630:Chemotactic Factors / Q000494:pharmacology*; D002633:Chemotaxis; D003931:Diacetyl / Q000494:pharmacology*; D009154:Mutation / Q000235:genetics; D019346:Sodium Acetate / Q000494:pharmacology*
chemical_list: D002630:Chemotactic Factors; D019346:Sodium Acetate; D003931:Diacetyl