Filimonova S A
Tsitologiia. 2005;47(5):417-25.
The epithelial lining of testes in Anystis baccarum is glandular and produces a secretory product necessary to form spermatophores. The main stages of spermatogenesis occur in the lumen of the testis in groups of synchronously developing sister cells. Spermatogonia and late spermatids are encircled by glandular cells. Reorganization of developing spermatids is typical of the trombidiform mites and includes formation of the acrosomal complex, cytoplasm elimination, disappearance of the nuclear envelope and formation of invaginations of plasmalemma. The chromatin material condensation is not followed by the entire chromatin body formation. In mature spermatoza, dense chromatin strands (80b nm in diameter) lie along the cell in the peripheral layer of the cytoplasm. Mature spermatozoa lack axonema or any protrusions. A layer of microtubules, visible underneath the outer membrane, may serve for sperm movement in the female genital duct. The acrosomal complex consists of acromal granule, acrosomal filament and subacrosomal substance. This, as well as two aggregates of typical mitochondria, looks plesiomorphic.
巴氏异恙螨睾丸的上皮衬里为腺状，可产生形成精包囊所需的分泌产物。精子发生的主要阶段发生在睾丸腔内，由同步发育的姐妹细胞群构成。精原细胞和晚期精子细胞被腺细胞环绕。发育中的精子细胞的重组是跗线螨类的典型特征，包括顶体复合体的形成、细胞质消除、核膜消失以及质膜内陷的形成。染色质物质凝聚后并未形成完整的染色质体。在成熟精子中，致密的染色质链（直径80纳米）沿细胞位于细胞质的外周层。成熟精子缺乏轴丝或任何突起。在外膜下方可见的一层微管可能有助于精子在雌性生殖道中移动。顶体复合体由顶体颗粒、顶体丝和顶体下物质组成。这以及典型线粒体的两个聚集体看起来具有原始特征。
