WebAlthough the pattern of cyst organization is conserved across Clitellata – each cell is connected via one intercellular bridge (ring canal) to the central and anuclear cytoplasmic mass termed the cytophore – this system shows high evolutionary plasticity. WebNov 1, 2024 · The cytophore interconnecting these undifferentiated germ cells was still poorly developed; it mainly contained mitochondria (not shown). In sexually mature leeches during breeding season, two morphologically distinct categories of germ cells occurred within this part of the cord (cells interpreted as nurse cells and oocytes; Figs. 1 E, F, 2 A, …
Low mitochondrial activity within developing earthworm
WebMar 2, 2013 · The cytophore was formed by a progressive accumulation of cytoplasm and organells during the first spermatogonial divisions.[17] summarized the functions of the cytophore as the following: … WebFeb 25, 2011 · The rosette stages become increasingly disrupted, with fragmentation of the cytoplasmic cytophore. After longer time periods (12–24 h) the testis tubules were almost completely empty with few spermatogenic stages or mature spermatozoa present. The ultrastructural effects of TCBZ-SX bear some resemblance to those observed after … green oak farm cheshire
Germ-line cysts organisation in clitellate annelids - Wiley Online …
WebMar 2, 2013 · The cytophore was formed by a progressive accumulation of cytoplasm and organells during the first spermatogonial divisions.[17] summarized the functions of the cytophore as the following: 1)synchronization of germ cell development; 2) production of energy through the large number of mitochondria present; 3) selective intake of material … WebLa Biblioteca Virtual en Salud es una colección de fuentes de información científica y técnica en salud organizada y almacenada en formato electrónico en la Región de América Latina y el Caribe, accesible de forma universal en Internet de modo compatible con las bases internacionales. WebJun 1, 2024 · The cytophore is an anuclear and elongated mass of the common cytoplasm and is located in the center of the cyst (Figs. 1C; 3B–E; 4). In the proximal part of the … greenoakhill quarry