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[Observation on mitosis of Trichomonas vaginalis cultivated in vitro using modified Giemsa staining]

Zheng-Ming Fang1, Wei-Wen Deng, Hong-Gang Zhu

  • 1Department of Parasitology and Microbiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. fzm@mails.tjmu.edu.cn

Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi = Chinese Journal of Parasitology & Parasitic Diseases
|January 23, 2009
PubMed

Insights

This study observed Trichomonas vaginalis trophozoites, finding most in interphase (66.5%) and fewer in binary (24.1%) or multiple fission (9.4%). Abnormal morphs were also noted in this parasite's cell cycle.

Area of Science:

  • Parasitology
  • Cell Biology
  • Microbiology

Context:

  • Trichomonas vaginalis is a flagellated protozoan parasite.
  • Understanding the cell cycle of T. vaginalis is crucial for developing targeted therapies.
  • Previous studies have focused on the general life cycle, but detailed fission stages require further investigation.

Purpose:

  • To quantify the distribution of Trichomonas vaginalis trophozoites across different cell cycle stages, including interphase, binary fission, and multiple fission.
  • To characterize the sub-stages within binary fission.
  • To analyze the occurrence and distribution of microcosms during multiple fission.

Summary:

  • Observations revealed that 66.5% of Trichomonas vaginalis trophozoites were in interphase, 24.1% in binary fission, and 9.4% in multiple fission.
  • Binary fission stages included premitotic, prophase, metaphase, anaphase, and telophase.
  • Multiple fission yielded 3 to 8 microcosms per trophozoite, with 69% exhibiting 3 and 24.5% exhibiting 4 microcosms. Abnormal morphs were also documented.

Impact:

  • Provides quantitative data on T. vaginalis cell cycle dynamics.
  • Offers insights into the reproductive strategies of T. vaginalis, particularly multiple fission.
  • Highlights the presence of abnormal forms, potentially relevant to parasite survival or drug resistance.
  • Contributes to a deeper understanding of protozoan cell division for future research and therapeutic development.

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