The Effect of Blue Gum Eucalyptus (Eucalyptus globulus) on the Fertilization, Growth, and Development of Sea Urchin Eggs (Tripneustes gratilla)

The study was conducted at the Biology Laboratory of Liceo de Cagayan University. It focused on the effect of blue gum eucalyptus (Eucalyptus globulus) leaf extract on the fertilization of the sea urchin egg and as well as its effect on the growth and development of fertilized sea urchin eggs (Tripneustes gratilla). The researcher used an experimental type of research in testing the effect of blue gum eucalyptus (Eucalyptus globulus) to the sea urchin eggs (Tripneustes gratilla). Two concentrations were prepared namely 100% and 50% in each type of solvent. Sterile sea water serves as the control of the study. Direct observation on the fertilization, growth, and development of sea urchin eggs was observed using stereo microscope. Based on the main objectives, the researcher concludes that blue gum eucalyptus (Eucalyptus globulus) extract is toxic to the sea urchin eggs (Tripneustes gratilla). Its toxicity was seen in its ability to prevent the fertilization process of sea urchin eggs and sperm cell. Its toxicity was also seen in its ability to prevent cleavage or mitosis of the fertilized sea urchin eggs. The toxic components of the substance might be a possible anti-cancer substance. The data could not compare which extract is better than the other. Hence, this study furthermore recommends further sophisticated experimentation of the extract.

 

Keywords: Eucalyptus globulus,   Fertilization, Growth, Development, Sea urchin eggs