Figure 2 from: Mrak P, Žnidaršič N, Tušek-Žnidarič M, Klepal W, Gruber D, Strus J (2012) Egg envelopes and cuticle renewal in Porcellio embryos and marsupial mancas. ZooKeys 176: 55-72. https://doi.org/10.3897/zookeys.176.2418
| Main Authors: | Mrak, Polona, Žnidaršič, Nada, Tušek-Žnidarič, Magda, Klepal, Waltraud, Gruber, Daniela, Strus, Jasna |
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| Format: | info Image |
| Terbitan: |
, 2012
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/928003 |
Daftar Isi:
- Figure 2 - Structure of distal chorion (ch) and proximal vitelline membrane (vm), covering Porcellio scaber mid-stage embryo. A The mid-stage embryo with visible limb buds (lb) and midgut glands primordia (mg). B Semithin section of the embryo peripheral region. Chorion is separated from the embryo surface. The vitelline membrane is slightly detached from the embryo cells; * - a wider space between embryo surface and vitelline membrane. C, D TEM micrographs of one-layered chorion, including electron lucent "lacunae" (white arrow). E, F TEM micrographs of vitelline membrane, composed of three layers: main proximal homogenous layer (*), thin middle electron dense layer (white arrow) and superficial corrugated lucent layer (black arrow). Bars: A 200 μm; B 10 μm; C, E 0.5 μm; D, F 200 nm.