Morphological and functional studies on the epidermal cells of amphioxus (Branchiostoma belcheri tsingtauense) at different developmental stages

Mao Bing-yu; Sun Xiao-yang; Zhang Hong-wei; Zhang Shi-cui; Wu Xian-han

doi:10.1007/BF02850879

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Morphological and functional studies on the epidermal cells of amphioxus (Branchiostoma belcheri tsingtauense) at different developmental stages

Updated：2023-05-16

- Morphological and functional studies on the epidermal cells of amphioxus (Branchiostoma belcheri tsingtauense) at different developmental stages
- Journal of Oceanology and Limnology Vol. 15, Issue 3, Pages: 236-241(1997)
- Affiliations：
  
  1. Department of Biology
  2. Institute of Oceanology
- Author bio：
- Funds：
- DOI：10.1007/BF02850879
  CLC：
- Online First：31 January 2013，
  
  Published：1997
- Accepted：
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Bing-yu, M., Xiao-yang, S., Hong-wei, Z. et al. Morphological and functional studies on the epidermal cells of amphioxus (Branchiostoma belcheri tsingtauense) at different developmental stages., Chin. J. Ocean. Limnol. 15, 236–241 (1997). https://doi.org/10.1007/BF02850879
DOI：

Bing-yu, M., Xiao-yang, S., Hong-wei, Z. et al. Morphological and functional studies on the epidermal cells of amphioxus (Branchiostoma belcheri tsingtauense) at different developmental stages., Chin. J. Ocean. Limnol. 15, 236–241 (1997). https://doi.org/10.1007/BF02850879 DOI：

摘要

Abstract

Epidermal cells of amphioxus at different developmental stages were investigated by electron microscopy and colloidal carbon tracing experiments. Amphioxus epidermal cells showed different ultrastructural characteristics at larval and adult stages. The epidermal cells at all larval stages studied (24–96 h) had numerous vesicles containing electron dense materials in their apical cytoplasm. In tracing experiments

carbon particles were found in apical vesicles and interoellular spaces. Under scanning electron microscope

many crater-like protrusions were observed on the surface of the cells. These results indicated that amphioxus larval epidermal cells may be capable of endocytosis. The epidermal cells of 3-month and adult amphioxus were obviously secretory ones characterized by well-developed peripheral filaments

a prominent Golgi apparatus and abundant apical secretory vesicles. This study also showed that adult amphioxus body surface mucus contained lectin that could agglutinate human red blood cells. The authors propose that the epidermal cells of amphioxus larva and adult may contribute to the immune defense of the amimal by different means.

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references

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