Stéphan-Dubois Françoise, Gusse Michel
Laboratoire de Zoologie, Université Nancy I, France.
Wilhelm Roux Arch Entwickl Mech Org. 1974 Jun;174(2):181-194. doi: 10.1007/BF00573630.
In the PlanarianDendrocoelum lacteum, the genital system degenerates after the egg laying season. It regenerates itself during autumn. The vitelline glands are the last to appear. They are exclusively reconstituted by neoblasts which migrate towards the oviducts, join themselves into cords, multiply by amitoses, enlarge and differentiate into vitelline cells. This differentiation characterizes itself essentially by a steady decrease of the nucleocytoplasmic ratio, an increase of the nuclear DNA amount, the appearance and accumulation of orthodiphenol granules in the cytoplasm.
在涡虫乳突枝肠涡虫中，生殖系统在产卵季节后会退化。它在秋季自行再生。卵黄腺是最后出现的。它们完全由向输卵管迁移的新细胞重建，连接成索状，通过无丝分裂增殖，增大并分化为卵黄细胞。这种分化的主要特征是核质比稳步下降、核DNA量增加、细胞质中邻二酚颗粒的出现和积累。
