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DOI | 10.1242/jeb.156109 |
Regional differences in the preferred e-vector orientation of honeybee ocellar photoreceptors | |
Ogawa, Yuri1,2,3; Ribi, Willi4; Zeil, Jochen4; Hemmi, Jan M.1,2 | |
通讯作者 | Ogawa, Yuri |
来源期刊 | JOURNAL OF EXPERIMENTAL BIOLOGY
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ISSN | 0022-0949 |
EISSN | 1477-9145 |
出版年 | 2017 |
卷号 | 220期号:9页码:1701-1708 |
英文摘要 | In addition to compound eyes, honeybees (Apis mellifera) possess three single-lens eyes called ocelli located on the top of the head. Ocelli are involved in head-attitude control and in some insects have been shown to provide celestial compass information. Anatomical and early electrophysiological studies have suggested that UV and blue-green photoreceptors in ocelli are polarization sensitive. However, their retinal distribution and receptor characteristics have not been documented. Here, we used intracellular electrophysiology to determine the relationship between the spectral and polarization sensitivity of the photoreceptors and their position within the visual field of the ocelli. We first determined a photoreceptor’s spectral response through a series of monochromatic flashes (340-600 nm). We found UV and green receptors, with peak sensitivities at 360 and 500 nm, respectively. We subsequently measured polarization sensitivity at the photoreceptor’s peak sensitivity wavelength by rotating a polarizer with monochromatic flashes. Polarization sensitivity (PS) values were significantly higher in UV receptors (3.8 +/- 1.5, N=61) than in green receptors (2.1 +/- 0.6, N=60). Interestingly, most receptors with receptive fields below 35 deg elevation were sensitive to vertically polarized light while the receptors with visual fields above 35 deg were sensitive to a wide range of polarization angles. These results agree well with anatomical measurements showing differences in rhabdom orientations between dorsal and ventral retinae. We discuss the functional significance of the distribution of polarization sensitivities across the visual field of ocelli by highlighting the information the ocelli are able to extract from the bee’s visual environment. |
英文关键词 | Ocelli Polarization vision Retina fine structure |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000400595600026 |
WOS关键词 | DRAGONFLY MEDIAN OCELLUS ; INSECT DORSAL OCELLI ; COMPOUND EYE ; OPTICAL ANALYSIS ; LOCUST OCELLI ; COLOR-VISION ; VISUAL SPACE ; FORM VISION ; DESERT ANT ; BEE BRAIN |
WOS类目 | Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
来源机构 | University of Western Australia |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/200407 |
作者单位 | 1.Univ Western Australia, Sch Biol Sci, 35 Stirling Highway, Crawley, WA 6009, Australia; 2.Univ Western Australia, UWAOceans Inst M092, 35 Stirling Highway, Crawley, WA 6009, Australia; 3.Macquarie Univ, Dept Biol Sci, Sydney, NSW 2109, Australia; 4.Australian Natl Univ, Res Sch Biol, Canberra, ACT 2601, Australia |
推荐引用方式 GB/T 7714 | Ogawa, Yuri,Ribi, Willi,Zeil, Jochen,et al. Regional differences in the preferred e-vector orientation of honeybee ocellar photoreceptors[J]. University of Western Australia,2017,220(9):1701-1708. |
APA | Ogawa, Yuri,Ribi, Willi,Zeil, Jochen,&Hemmi, Jan M..(2017).Regional differences in the preferred e-vector orientation of honeybee ocellar photoreceptors.JOURNAL OF EXPERIMENTAL BIOLOGY,220(9),1701-1708. |
MLA | Ogawa, Yuri,et al."Regional differences in the preferred e-vector orientation of honeybee ocellar photoreceptors".JOURNAL OF EXPERIMENTAL BIOLOGY 220.9(2017):1701-1708. |
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