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  1. 010 学術雑誌論文
  2. 木下, 充代 / KINOSHITA, Michiyo

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/3326
08a39526-abbc-4a38-9d98-ebdf5168cbde
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1350.full.pdf 1350.full (631.5 kB)
Item type 学術雑誌論文 / Journal Article(1)
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

KINOSHITA, Michiyo

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PFEIFFER, Keram

× PFEIFFER, Keram

PFEIFFER, Keram

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HOMBERG, Uwe

× HOMBERG, Uwe

HOMBERG, Uwe

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著者別名 木下, 充代

× 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.
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
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
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