von Byern Janek, Klepal Waltraud
Cell Imaging and Ultrastructure, Faculty of Life Sciences, University of Vienna, Vienna, Austria.
Biofouling. 2006;22(5-6):329-38. doi: 10.1080/08927010600967840.
Several genera of cephalopods (Nautilus, Sepia, Euprymna and Idiosepius) produce adhesive secretions, which are used for attachment to the substratum, for mating and to capture prey. These adhesive structures are located in different parts of the body, viz. in the digital tentacles (Nautilus), in the ventral surface of the mantle and fourth arm pair (Sepia), in the dorsal epidermis (Euprymna), or in the dorsal mantle side and partly on the fins (Idiosepius). Adhesion in Sepia is induced by suction of dermal structures on the mantle, while for Nautilus, Euprymna and Idiosepius adhesion is probably achieved by chemical substances. Histochemical studies indicate that in Nautilus and Idiosepius secretory cells that appear to be involved in adhesion stain for carbohydrates and protein, whilst in Euprymna only carbohydrates are detectable. De-adhesion is either achieved by muscle contraction of the tentacles and mantle (Nautilus and Sepia) or by secretion of substances (Euprymna). The de-adhesive mechanism used by Idiosepius remains unknown.
几种头足类动物（鹦鹉螺、乌贼、艾氏耳乌贼和微鳍乌贼）会产生粘性分泌物，这些分泌物用于附着在基质上、交配以及捕获猎物。这些粘性结构位于身体的不同部位，即：在指状触须中（鹦鹉螺）、在套膜腹面和第四对腕中（乌贼）、在背部表皮中（艾氏耳乌贼），或在套膜背侧且部分位于鳍上（微鳍乌贼）。乌贼的粘附是由套膜上皮肤结构的吸力诱导的，而对于鹦鹉螺、艾氏耳乌贼和微鳍乌贼，粘附可能是通过化学物质实现的。组织化学研究表明，在鹦鹉螺和微鳍乌贼中，似乎参与粘附的分泌细胞对碳水化合物和蛋白质呈阳性染色，而在艾氏耳乌贼中只能检测到碳水化合物。脱粘要么是通过触须和套膜的肌肉收缩实现的（鹦鹉螺和乌贼），要么是通过物质分泌实现的（艾氏耳乌贼）。微鳍乌贼所使用的脱粘机制尚不清楚。
