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Spectral properties of identified polarized-light sensitive interneurons in the brain of the desert locust Schistocerca gregaria
https://ir.soken.ac.jp/records/3326
https://ir.soken.ac.jp/records/332608a39526-abbc-4a38-9d98-ebdf5168cbde
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
1350.full (631.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||
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| 公開日 | 2013-01-18 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Spectral properties of identified polarized-light sensitive interneurons in the brain of the desert locust Schistocerca gregaria | |||||||||||
| タイトル | ||||||||||||
| タイトル | Spectral properties of identified polarized-light sensitive interneurons in the brain of the desert locust Schistocerca gregaria | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 著者 |
KINOSHITA, Michiyo
× KINOSHITA, Michiyo
× PFEIFFER, Keram
× HOMBERG, Uwe
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| 著者別名 |
木下, 充代
× 木下, 充代
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | Many migrating animals employ a celestial compass mechanism for spatial navigation. Behavioral experiments in bees and ants have shown that sun compass navigation may rely on the spectral gradient in the sky as well as on the pattern of sky polarization. While polarized-light sensitive interneurons (POL neurons) have been identified in the brain of several insect species, there are at present no data on the neural basis of coding the spectral gradient of the sky. In the present study we have analyzed the chromatic properties of two identified POL neurons in the brain of the desert locust. Both neurons, termed TuTu1 and LoTu1, arborize in the anterior optic tubercle and respond to unpolarized light as well as to polarized light. We show here that the polarized-light response of both types of neuron relies on blue-sensitive photoreceptors. Responses to unpolarized light depended on stimulus position and wavelength. Dorsal unpolarized blue light inhibited the neurons, while stimulation from the ipsilateral side resulted in opponent responses to UV light and green light. While LoTu1 was inhibited by UV light and was excited by green light, one subtype of TuTu1 was excited by UV and inhibited by green light. In LoTu1 the sensitivity to polarized light was at least 2 log units higher than the response to unpolarized light stimuli. Taken together, the spatial and chromatic properties of the neurons may be suited to signal azimuthal directions based on a combination of the spectral gradient and the polarization pattern of the sky. |
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| 書誌情報 |
Journal of Experimental Biology en : Journal of Experimental Biology 巻 210, 号 8, p. 1350-1361, 発行日 2007-04 |
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| 出版者 | ||||||||||||
| 出版者 | The Company of Biologists Ltd | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 00220949 | |||||||||||
| PubMed番号 | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | PMID | |||||||||||
| 関連識別子 | 17401118 | |||||||||||
| DOI | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | http://doi.org/10.1242/jeb.02744 | |||||||||||
| 関連名称 | 10.1242/jeb.02744 | |||||||||||
| 権利 | ||||||||||||
| 権利情報 | © The Company of Biologists Limited 2007 | |||||||||||
| 関連サイト | ||||||||||||
| 識別子タイプ | URI | |||||||||||
| 関連識別子 | http://www.biologists.com/dmm/dmm_information.html#anchor_access | |||||||||||
| 関連名称 | Copyright | |||||||||||
| フォーマット | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | application/pdf | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
