のりの窒素代謝に及ぼす微量元素の影響 (海藻の生化学的研究-5,6-)

概要

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By using the SUTO medium, effects of trace metals on the growth and nitrogen contents of Porphyra yezoensis were examined. The fronds were reared for 3-5 days and analyzed for total nitrogen, protein nitrogen and carbohydrate. 1) When kept in a medium lacking trace metals, the fronds showed very low increase rates of solids, protein nitrogen and total nitrogen, and a higher carbohydrate content. 2) Zinc was found to be essential for the growth and increase of protein nitrogen of the fronds. The optimum concentration was approximately 0.03 ppm. 3) For the growth and formation of protein, the optimum quantity of the Pl solution (trace metal solution) to be added to the SUTO medium was found to be 2ml/l for the young buds ranging from 0.5 to 1cm in length and 1ml/l for the fronds rang-ing from 5 to 7cm, respectively.
日本水産學會の論文