The effect of lipids on transepidermal water permeation in snakes.
The effect of lipids on transepidermal water permeation in snakes.
复制标题
脂质对蛇经皮水渗透的影响。
DOI：
10.1016/0300-9629(85)90124-0
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Downing,DT
中科院分区：
文献类型：
--
作者：
Burken,RR;Wertz,PW;Downing,DT
在皮肤形成液态水和干燥空气之间的界面的条件下，测量了8种蛇的脱落皮肤的经表皮水渗透。用氯仿萃取：甲醇除去了相当于皮肤干重4.9-8.7%的脂质，并使经表皮水渗透增加了35- 175倍。用己烷对蛇皮进行的初始提取仅去除了总可提取脂质的25-35%，但增加了水渗透3- 10倍。对于完全脱脂的皮肤，水-空气渗透比空气-空气渗透快得多，并且也比从自由水面蒸发快。
Transepidermal water permeation was measured for the shed skin of 8 species of snakes under conditions where the skin formed an interface between liquid water and dry air. Extraction with chloroform: methanol removed lipids amounting to 4.9-8.7% of the dry weight of skin and increased transepidermal water permeation 35-to 175-fold. Initial extraction of snake skin with hexane removed only 25-35% of the total extractable lipid but increased water permeation 3-to 10-fold. For totally delipidized skin, water-to-air permeation was much faster than air-to-air permeation, and was also faster than evaporation from a free water surface.