昆虫复眼瞳孔调节的一种新机制

A NEW MECHANISM OF PUPIL CONTROL IN THE INSECT COMPOUND EYE

本文采用细胞内记录方法,研究了蝗虫和螽斯复眼侧区小眼在不同时间(日间和夜间)和不同适应状态(暗适应和明适应)下,小网膜细胞角灵敏度的变化规律.结果表明:小网膜细胞角灵敏度的变化不仅与适应状态有关,而且伴随时间的变化而变化.小眼感杆束直径相应变化用光镜方法得到证实,我们认为在昆虫复眼中存在一种新的瞳孔调节机制.

In Locust and Bush cricket, regular changes of the angular sensitivity of the retinula cells of the ommatidia in the side region of the compound eye have been investigated by intercellular recording method under dark and light adapted states during the day and night times. The results show that the regular changes of the angular sensitivity of the retinula cells not only depend on adapted states, but also on the changes of the day and night times.Corresponding changes of the diameter of the aoss - sectional area of the distal rhabdom in the ommatidia have been confirmed and measured by means of a microscope method. We propose a new mechanism of pupil control in the insect compound eye.