Searcy D G, Kisiel M J, Zuckerman B M
Exp Aging Res. 1976 Jul;2(4):293-301. doi: 10.1080/03610737608257987.
The external cuticular surface of nematodes, which resembles cellular membranes in certain ways, appears to deteriorate with age. For example, when the permeabilities to radioactive water of young and old nematodes were compared, and the data were corrected for the different surface: volume ratios, the older nematodes were significantly more permeable. In both living and dead nematodes, the same rates of water exchange were observed, indicating that the major route of exchange was probably by passive diffusion through the cuticle rather than by active processes such as swallowing or excreting water.
线虫的外表皮表面在某些方面类似于细胞膜，似乎会随着年龄的增长而退化。例如，当比较年轻和年老线虫对放射性水的渗透性，并对不同的表面积与体积比的数据进行校正后，年老线虫的渗透性明显更高。在活线虫和死线虫中，观察到相同的水交换速率，这表明主要的交换途径可能是通过表皮的被动扩散，而不是通过诸如吞咽或排泄水等主动过程。
