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Fig. 1 | Zoological Letters

Fig. 1

From: Red-shift of spectral sensitivity due to screening pigment migration in the eyes of a moth, Adoxophyes orana

Fig. 1

Ommatidial structure of male Adoxophyes orana. Transverse sections of the rhabdom (Rh) region in dark-adapted (ac) and light-adapted (df) eyes. The depths at which these sections were cut are indicated in the diagram (g) by three black arrowheads on the left. a Distal rhabdom (Rh) of a dark-adapted ommatidium. Seven photoreceptors (R1–7) are evident. Cell bodies of photoreceptors and secondary pigment cells (Spc) are free of pigment granules. b Proximal rhabdom. c Basal rhabdom. Pigmented cell is the eighth and basal photoreceptor, R8. The ommatidia are surrounded by numerous tracheoles (Tr). d Distal rhabdom of a light-adapted ommatidium. Pigment granules (white arrowheads) exist in the region close to the rhabdom. e Proximal rhabdom. f Basal rhabdom. g Diagram of an ommatidium in dark- (left) and light- (right) adapted states. C, cornea; Cc, crystalline cone; Ppc, primary pigment cell. Scale bars = 2 μm

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