Loewenstein W R
Science. 1965 Nov 12;150(3698):909-10. doi: 10.1126/science.150.3698.909.
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.
(摇蚊Chironomus thummi的)唾液腺细胞核膜的离子通透性在发育过程中会发生变化。在四龄幼虫早期阶段之后,在动物发育的3至5天内,通透性降至其基础值的约五分之一,然后在接下来的2至4天内再次上升。通过注射生长激素蜕皮激素,可在1小时内重现这种变化的下降阶段。