Colour TEM of photoreceptor cells in snail retina

Bildnummer 11872027
Colour TEM of photoreceptor cells in snail retina
Snail retina cells. Coloured transmission electron micrograph (TEM) of photoreceptor cells in the eye retina of a garden snail. At centre are two photo- receptor cells (yellow) surrounded by supportive cells (blue) and pigment granules (purple dots). Under light,pigment granules move to the centre of the retina enabling the snail eye to absorb light. Researchers B. Buisson & A.Blanc have shown that garden snail biorhythms are under the influ- ence of light. Snails rest by day & are active at night. Light acts on the snail eye which affects brain neurosecretions over 24 hours. These neuro- secretions pass from the brain at night to nerves,reaching muscles by day causing the snail to rest
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Raguet, Hubert / EURELIOS
Bildgröße: 4903 px × 3383 px
Modell-Rechte: nicht erforderlich
Eigentums-Rechte: nicht erforderlich
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  • FRA ITA USA SMR

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