テトラサイクリン標識によるエゾバフンウニ口器生長線の観察
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概要
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The formation of pigmented-growth zones found in the jaw apparatus in a sea urchin, Strongylocentrotus intermedius, was studied by tetracycline labelling. The urchins were reared in aquaria for fourteen months from August, 1967 to October, 1968. During the rearing period, they had injections of tetracycline four times through the peristomial membrane. In the jaw apparatus of the individuals, pigmented-growth zones were clearly seen along each of the suture between the half pyramid and the epiphysis, while they were less clear in the compass, the rotule and the tooth. Only two bands of tetracycline fluorescence were observed along each of the suture between the half pyramid and the epiphysis. A pigmented-growth zone was observed between these two bands of tetracycline fluorescence produced by the injection on October, 1967 and March, 1968. As those found in the test plates, the pigmented zones observed in these structures were concluded to be winter rings.
- 公益社団法人 日本水産学会の論文