Griffith R W, Mathews M B, Umminger B L, Grant B F, Pang P K, Thomson K S, Pickford G E
J Exp Zool. 1975 May;192(2):165-72. doi: 10.1002/jez.1401920206.
Fluid from the notochordal canal of the coelacanth, Latimeria chalumnae, was analyzed for major inorganic and organic constituents and compared with blood serum from the same fish. Significantly or suggestively lower levels of sodium, magnesium, calcium, bicarbonate, sulfate, total carbohydrates, glucose, lactate, cholesterol, bound phosphate and total proteins were found in notochordal fluid than in serum, whereas potassium, chloride, urea, trimethylamine oxide, and total free amino acids were higher and inorganic phosphorus essentially identical. Osmolarity of notochordal fluid (1058 mOsm) exceeds that of serum (942 mOsm). A whitish precipitate in the fluid consisted of a matrix of fibers 100 A in diameter and of indefinite length. It resembled a sialoglycoprotein in composition and was stabilized by disulfide bonds. The fluid contained cellular debris.
对腔棘鱼（Latimeria chalumnae）脊索管中的液体进行了主要无机成分和有机成分分析，并与同一条鱼的血清进行了比较。结果发现，脊索液中的钠、镁、钙、碳酸氢盐、硫酸盐、总碳水化合物、葡萄糖、乳酸、胆固醇、结合磷酸盐和总蛋白水平显著或暗示性低于血清，而钾、氯、尿素、氧化三甲胺和总游离氨基酸则较高，无机磷基本相同。脊索液的渗透压（1058 mOsm）超过血清（942 mOsm）。液体中的白色沉淀物由直径100埃、长度不定的纤维基质组成。其成分类似于唾液糖蛋白，并通过二硫键稳定。该液体含有细胞碎片。
