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Fig. 7 | Applied Microscopy

Fig. 7

From: Fine structure of the silk spinning system in the caddisworm, Hydatophylax nigrovittatus (Trichoptera: Limnephilidae)

Fig. 7

Transmission electron micrographs of the posterior region of the silk gland in the caddisworm H. nigrovittatus.a, b Secretory silk products are visible as large secretory globules (Sg) in the epithelium (Ep). Er: rough endoplasmic reticulum. c, d Secretory products are transported across apical microvilli (Mv) by exocytosis, and they are released to the lumen as a major silk substance. Nu: nucleus. Scale bars indicate 5 μm (a), 2 μm (b), 5 μm (c), and 0.5 μm (d), respectively

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