Phospholipase C-beta 2 as a mammalian taste signaling marker is expressed in the multiple gustatory tissues of medaka fish, Oryzias latipes |
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| Authors: | Yasuoka Akihito Aihara Yoshiko Matsumoto Ichiro Abe Keiko |
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| Affiliation: | Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan. |
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| Abstract: | Phospholipase C-beta 2 (PLC-beta 2) is a key enzyme in mammalian taste signal transduction. To analyze the taste system in fishes at molecular level, we cloned mfplc-beta 2 as a medaka fish homologue of PLC-beta 2. In situ hybridization analysis revealed that mfplc-beta 2 is expressed in the lip and branchial region where chemosensory tissues are distributed. Immunohistochemical detection of nerve fibers near the mfplc-beta 2 positive cells suggests the characteristic of peripheral sensory cells. These results suggest that mfplc-beta 2 is expressed in the gustatory sensory cells of medaka. This may provide a molecular basis for the taste reception at multiple tissues in fish species. |
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