Answers are grounded in this paper and cite their sources.
The ion permeability of the nuclear membrane envelope of salivary gland cells (of the midge Chironomus thummi) undergoes changes during development. Following the early fourth instar stage, permeability falls to about one-fifth of its base value over a period of 3 to 5 days of development of the animal, and then rises again over the next 2 to 4 days. The falling phase of the change can be reproduced within 1 hour by injections of the growth hormone ecdyson.
No takes yet. Share an insight, caveat, or question.
Ito et al. (1965) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: