Hubert M J
C R Acad Hebd Seances Acad Sci D. 1975 Jul 28;281(4):271-3.
The nucleolus of the thecal cells and little cells of the granulosa contains generally a single "fibrillar center" surrounded by the dense fibrous material of the nucleolus. The "fibrillar centers" are in contact with nucleolar associated heterochromatin. Cytochemical results show that "fibrillar centers" are chiefly composed of proteins which are revealed as ribonucleoproteins with the EDTA method, but the amount of RNA associated with these proteins seems to be small. It is possible that the fibrillar center also contains a little DNA.
膜细胞和颗粒小细胞的核仁通常含有单个“纤维中心”,其被核仁的致密纤维物质所包围。“纤维中心”与核仁相关异染色质接触。细胞化学结果表明,“纤维中心”主要由蛋白质组成,用乙二胺四乙酸(EDTA)法可将其显示为核糖核蛋白,但与这些蛋白质相关的RNA量似乎很少。纤维中心也有可能含有少量DNA。