UMR100 Ifremer Physiologie et Ecophysiologie des Mollusques Marins, Université de Caen Basse-Normandie, Caen Cedex, France.
Micron. 2011 Oct;42(7):718-25. doi: 10.1016/j.micron.2011.04.003. Epub 2011 Apr 22.
The ultrastructure of somatic cells present in gonadal tubules in male oyster Crassostrea gigas was investigated. These cells, named Intragonadal Somatic Cells (ISCs) have a great role in the organization of the germinal epithelium in the gonad. Immunological detection of α-tubulin tyrosine illustrates their association in columns from the basis to the lumen of the tubule, stabilized by numerous adhesive junctions. This somatic intragonadal organization delimited some different groups of germ cells along the tubule walls. In early stages of gonad development, numerous phagolysosomes were observed in the cytoplasm of ISCs indicating that these cells have in this species an essential role in the removal of waste sperm in the tubules. Variations of lipids droplets content in the cytoplasm of ISCs were also noticed along the spermatogenesis course. ISCs also present some mitochondria with tubullo-lamellar cristae.
研究了雄性牡蛎性腺小管中体细胞的超微结构。这些细胞被命名为性腺内体细胞（Intragonadal Somatic Cells，ISCs），它们在性腺中生殖上皮的组织中起着重要作用。α-微管蛋白酪氨酸的免疫检测表明，它们在从管基到管腔的柱状物中存在关联，由许多粘着连接稳定。这种体细胞性腺内组织沿着小管壁将不同的生殖细胞群分隔开来。在性腺发育的早期阶段，ISCs 细胞质中观察到大量的吞噬溶酶体，表明这些细胞在该物种中在小管中清除废弃精子方面发挥着重要作用。在精子发生过程中，ISCs 细胞质中脂滴的含量也发生了变化。ISCs 还存在一些具有管状板层嵴的线粒体。
