Acta Anatomica Sinica ›› 2017, Vol. 48 ›› Issue (6): 732-739.doi: 10.16098/j.issn.0529-1356.2017.06.017

• Histology,Embryology and Developmental Biology • Previous Articles     Next Articles

Influence of three kinds of biological factors on the reproduction and regeneration in planarians

DONG Zi-mei DONG Yan-ping CHEN Guang-wen* LIU De-zeng   

  1. Life Science College, He’nan Normal University, He’nan Xinxiang 453007, Chinese
  • Received:2017-01-13 Revised:2017-04-17 Online:2017-12-06 Published:2017-12-06
  • Contact: CHEN Guang-wen E-mail:Chengw0183@sina.com

Abstract:

Objective To investigate the effects of the three reproductive-relative factors on gonads and regeneration in planarians. Methods In this study, the planarians Dugesia japonica were cultured with three reproductive-relative factors: the hormones [estradiol (E2), methyltestosteronum(MT)], biogenic amine [5-hydroxy-tryptamine (5-HT),dopamine (DA)] and D-amino acids (D-tryptophan, D-arginine, D-phenylalanine). The cultured concentration was calculated by SPSS17.0 after the acute toxicity experiment, and the experimental phenomena were recorded. Results E2, 5-HT, D-tryptophan and D-phenylalanine improved the gonads development, which proportions were 20%, 40%, 20%, and 20% respectively, but DA made the gonads atrophy in 40% or 50% planarians. Besides, 5-HT increased speed of regeneration, while DA inhibited it during planarians regeneration. Conclusion E2, 5-HT, D-tryptophan and D-phenylalanine improved the gonads development, and 5-HT increased speed of regeneration; DA inhibited the gonads and regeneration.

Key words: Sexualization, Regeneration, Hormone, Biogenic amine, D-amino acid, Acute toxicity experiment, Dugesia japonica