An Attachment of the Salivary Gland Chromosomes to the Nuclear Membrane Found in Chironomus dorsalis

抄録

In the salivary gland nucleus of Chironomus dorsalis it was found that the salivary gland chromosome was attached to the nuclear membrane. This phenomenon was seen in the nucleus of the salivary gland from the larvae in various stages of development. Chromosomes sometimes penetrated into the nuclear membrane, and spherical bodies, which looked brilliant under the phase negative contrast, were found in the vicinity of the attachment of the chromosomes. It may be supposed from these observations that this phenomenon has relation to a mechanism for transfering materials from the nucleus to the cytoplasm.
I wish to express my sincere gratitude to Professor Sukeichi Fujii of Kobe University for his kind criticisms. I am also deeply indebted to Professor Kenji Nakamura of Kyoto University for his valuable suggestions.