Zhao J B, Huang S Y
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi. 1989;7(3):204-6.
Diploid and triploid types of Paragonimus westermani were compared in the aspect of ultrastructure of spermatogenesis. The results showed that the process of spermatogenesis in the diploid type was normal. The cells at every stage are well developed. A great number of morphologically and functionally normal spermatozoa could be formed. On the other hand, the process of spermatogenesis in the triploid type was abnormal, the cells at every stage developed abnormally. They were apparently degenerated or vacuolated, lacking organelles. The cytophore was broken into small particles. No normal spermatozoa were found (Figs. 1-5).
对二倍体和三倍体卫氏并殖吸虫在精子发生超微结构方面进行了比较。结果表明，二倍体型的精子发生过程正常。各个阶段的细胞发育良好。能够形成大量形态和功能正常的精子。另一方面，三倍体型的精子发生过程异常，各个阶段的细胞发育异常。它们明显退化或空泡化，缺乏细胞器。细胞柄破碎成小颗粒。未发现正常精子（图1 - 5）。
