Faculty and research guide

Laboratory of Cell Biology (Aquatic Biology, Toriyama)

Masaru Toriyama

In our laboratory, we are mainly conducting studies of marine life that can be collected in the Education and Research Center of Mochimune Field Science.

[1]Analysis of the genes involved in the morphogenesis of the sea urchin embryo :
We are analyzing the genes involved in the morphogenesis of the sea urchin. Studies using sea urchins have the following advantages:
1. It is possible to obtain a large amount of eggs and sperm from them.
2. High tunability of embryonic development.

So, you can get abundant mRNAs and proteins expressed at a particular stage of sea urchin embryos. In recent years, analysis of a sea urchin genome was carried out and found that the genome encodes about 23,300 genes (Eric H. Davidson et al). Interestingly, they have many of morphogenesis genes with high homology to human. Therefore, we believe that helps to explore the evolution of chordate by analyzing these genes.

[2]Analysis of the genes involved in sea cucumber visceral regeneration:
In holothureans, autotomy of internal organs occurs in response to adverse stimuli. After evisceration sea cucumbers regenerate internal organs naturally, including digestive tube, respiratory tree and gonad. They are known to practice one of the most impressive forms of regeneration in the animal kingdom. We are also analyzing the genes involved in the morphogenesis (normal gut development) and visceral regeneration of the sea cucumber Stichopus japonica:

[3]Studies of marine life using the Education and Research Center of Mochimune Field Science : The center is a facility of the faculty of agriculture for marine education located in Shizuoka City, Suruga-ku, Mochimune. Not only do field exercises that target undergraduate students, we are researching sea urchin, sea cucumber, coral and marine sessile organisms utilizing the environment facing the sea here. Of course, it is also possible to carry out joint researches and graduate studies using center.


Education and Research Center of Mochimune Field Science


Sea urchin breeding water tank


Sea cucumber


Whole mount in situ hybridization

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