Domínguez S, Piezzi R S, Scardapane L, Guzmán J A
J Pineal Res. 1987;4(2):211-9. doi: 10.1111/j.1600-079x.1987.tb00858.x.
The pineal of viscacha (Lagostomus maximus maximus) is formed by two main cellular populations of pinealocytes and interstitial cells. A connective capsule surrounds the gland sending numerous septa containing blood vessels and nerves. In the specimens collected during summer the pinealocyte displays a defined contour and a clear cytoplasm with abundant ribosomes and numerous cisternae of endoplasmic reticulum. The pinealocytes observed during winter have cytological characteristics of active cells with dense and elongated mitochondria, dense bodies, and a developed Golgi complex. These seasonal glandular changes could be related to the environmental condition and mainly to the summer photoperiod. The presence of abundant nerve terminals in the perivascular spaces suggests a neural control on the blood vessels.
绒鼠（Lagostomus maximus maximus）的松果体由松果体细胞和间质细胞这两种主要细胞群构成。一层结缔组织被膜包裹着腺体，并发出许多含有血管和神经的隔膜。在夏季采集的标本中，松果体细胞轮廓清晰，细胞质透明，含有丰富的核糖体和大量内质网池。冬季观察到的松果体细胞具有活跃细胞的细胞学特征，线粒体密集且细长，有致密小体和发达的高尔基体。这些季节性的腺体变化可能与环境条件有关，主要与夏季光周期有关。血管周围间隙中存在丰富的神经末梢，提示对血管有神经控制。
