Kuran H
Folia Histochem Cytochem (Krakow). 1979;17(3):287-96.
Dry mass content in nuclei and cytoplasm as well as its concentration during the growth and differentiation of the root cortex cells of Helianthus annuus were investigated by means of interference microscopy. Moreover, by incubation with radioactive thymidine, the endopolyploidization at the level of 4C was found to exist in this species. It was found that during the growth and differentiation of the root cortex cells, the average dry mass content in nuclei essentially does not increase, whereas its content in cytoplasm increases significantly. At the same time the progressive decrease of dry mass concentration takes place in both nuclei and cytoplasm. This drop is connected with their growth and results from the considerable hydratation of karyoplasm and cytoplasm.
利用干涉显微镜研究了向日葵根皮层细胞在生长和分化过程中细胞核和细胞质中的干物质含量及其浓度。此外，通过用放射性胸苷孵育，发现该物种存在4C水平的核内多倍化现象。结果发现，在根皮层细胞的生长和分化过程中，细胞核中的平均干物质含量基本不增加，而细胞质中的含量显著增加。同时，细胞核和细胞质中的干物质浓度都在逐渐降低。这种下降与它们的生长有关，是核质和细胞质大量水化的结果。
