• 作者： 陳建初；石尾?彌；矢野友紀
• 中文摘要： 渦鞭毛藻在染色體之構造上與細菌很相似，兩種生物用細胞化學研究之結果其染色體均?有組織蛋白(histone)，然 而渦鞭毛藻也有它自己之特?，?不屬於原核生物（Procaryote)，也不屬於?核生物（Eucaryote)，而被認?是屬於 中核生物（Mesocaryote)。精胺酸（arginine)是細胞核?鹽基性蛋白質的主要成分，Gyrodinium sp.是一種新發現的 渦鞭毛藻，將Gyrodinium sp.在含有放射性重氫精胺酸（3H-arginine)之培養基下暴露一段時間，用電子顯微鏡autora-diography研究之結果發現銀粒子大部分集中在染色體，少部分存在於粒線體、核膜以及核質。作者認?3H-arginine 由粒線體經過核膜、核質移入染色體?，而且證實Gyrodinium sp.細胞含有鹽基性蛋白質，而此鹽基性蛋白質可能在粒線 體合成而後移送到染色體?。
• 英文摘要： Dinoflagellate is usually considered to have the same chromosomal structure as bacteria such as Bacillus. Both are known by cytochemical studies to have no histone in the chromosome. However, dinoflagellate has special features; it neither belongs to Procaryote nor Eucaryote and has been suggested to belong to a new kingdom, Mesocaryote. Gyrodinium sp., a newly discovered marine dinoflagellate, was studied by electron microscopic autoradiography using 3H-arginine which is a main component of basic protein in the nucleus. Most of the silver grains appeared in the chromosomes. Some of them scattered in the mitochondrion, nucleoplasm and nuclear envelope. Therefore, 3H-arginine was assumed to be incorporated into the chromosomes through the mitochondrion, nuclear envelope and nucleoplasm. This fact suggests that the chromosomes of Gyrodinium sp. might contain basic proteins which are possibly synthesized in the mitochondrion.
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