GAY H
J Biophys Biochem Cytol. 1956 Jul 25;2(4 Suppl):407-14.
The structural evidence for nucleocytoplasmic interrelationships observed in electron micrographs of salivary-gland cells of third instar larvae of Drosophila melanogaster has been reviewed. It has been found that the characteristic nuclear membrane outpocketings with their adjacent highly differentiated chromosomal materials occur at one stage of larval development at a time when a new cellular function is being initiated. Preliminary cytochemical studies to characterize the materials transferred from nucleus to cytoplasm indicate that deoxyribonucleic acid occurs within the blebs. Observations on chromosome and nuclear membrane structure are also presented.
对在黑腹果蝇三龄幼虫唾液腺细胞电子显微照片中观察到的核质相互关系的结构证据进行了综述。已发现,具有相邻高度分化染色体物质的特征性核膜袋状凹陷在幼虫发育的一个阶段出现,此时一种新的细胞功能正在启动。旨在表征从细胞核转移到细胞质的物质的初步细胞化学研究表明,脱氧核糖核酸存在于泡囊中。还展示了对染色体和核膜结构的观察结果。