Bhatnagar A N, Al-Noori S A, Gorgees N S
Acta Anat (Basel). 1978;100(2):221-8. doi: 10.1159/000144902.
The saccus vasculosus of Cyprinion macrostomus is made up of coronet and supporting cells. Neurones are not observed. The luminal surface of the coronet cells exhibits hair-like protrusions. The saccus vasculosus is mainly concerned with a secretory function. Plenty of secretory material is seen in the lumen. PAS and alcian blue tests are positive for the secretory material in the lumen and the apical protrusions of the coronet cells. Some cells also exhibit small PAS- and alcian blue-positive granules. The possibility of the elaboration of glycogen by the coronet cells is ruled out. The toluidine blue test is also positive for the secretory material in the lumen and the apical protrusions. Small metachromatic granules are also seen in some of the coronet cells. The acetone-Sudan black B and Sudan black B tests point to lipid moiety of the coronet cells, the apical protrusions and the secretory material in the lumen. The acrolein-Schiff and ninhydrin-Schiff tests point to a protein moiety of the coronet cells and the secretory material in the lumen. The performic acid-alcian blue test showed cystine to be present in small amount.
大口鲤的血管囊由冠状细胞和支持细胞组成。未观察到神经元。冠状细胞的腔面呈现出毛发状突起。血管囊主要与分泌功能有关。在管腔内可见大量分泌物质。管腔内的分泌物质以及冠状细胞的顶端突起对PAS和阿尔辛蓝试验呈阳性反应。一些细胞还呈现出小的PAS和阿尔辛蓝阳性颗粒。排除了冠状细胞合成糖原的可能性。甲苯胺蓝试验对管腔内的分泌物质以及顶端突起也呈阳性反应。在一些冠状细胞中也可见小的异染颗粒。丙酮-苏丹黑B和苏丹黑B试验表明冠状细胞、顶端突起以及管腔内分泌物质的脂质部分。丙烯醛-席夫和茚三酮-席夫试验表明冠状细胞和管腔内分泌物质的蛋白质部分。过甲酸-阿尔辛蓝试验显示存在少量胱氨酸。
