File:Parasite160001-fig3- Vitellogenesis and oogenesis in Crepidostomum metoecus (Digenea) TEM.png

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English: Figures 9-12 of paper.

Stage 4 of vitellogenesis and primary oocyte stage of oogenesis in Crepidostomum metoecus.

  • (9) A group of saturated lipid droplets, surrounded by glycogen granules, and a few shell globule clusters. Scale bar = 1 μm.
  • (10) A part of the cytoplasm of a vitelline cell at the fourth stage of maturation. Note the abundance of glycogen granules around lipid droplets. Stained according to the Thiéry method. Scale bar = 1 μm.
  • (11) Electron micrograph cross-section of ovary (arrowheads: basal lamina). Germ cells of the four stages of maturation are observed (I–IV). Scale bar = 2 μm.
  • (12) Primary oocyte showing a small amount of cytoplasm, filled with free ribosomes, mitochondria, few granular endoplasmic reticula, and a chromatoid body. Scale bar = 1.5 μm.
CB: chromatoid body; G: glycogen particle; GER: granular endoplasmic reticulum; L: lipid droplet; M: mitochondrion; N: nucleus; Nl: nucleolus; P: parenchyma; SGC: shell globule cluster.
Date
Source (2016). "Ultrastructural study of vitellogenesis and oogenesis of Crepidostomum metoecus (Digenea, Allocreadiidae), intestinal parasite of Salmo trutta (Pisces, Teleostei)". Parasite 23: 47. DOI:10.1051/parasite/2016057. ISSN 1776-1042.
Author Samuel Greani, Yann Quilichini and Bernard Marchand

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This file was published in the scientific journal Parasite. Their website states that all content of the journal including and after 2013 is published under the Creative Commons Attribution 4.0 license.

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