Jia Lei-Po, Liang Ai-Ping
Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
Arthropod Struct Dev. 2015 Sep;44(5):407-14. doi: 10.1016/j.asd.2015.08.004. Epub 2015 Aug 28.
The fine structure of the interommatidial exocrine glands, found in the compound eyes of the water strider Aquarius remigis, is described using light, scanning, and transmission electron microscopy. The glandular pores of the glands are specialized into minute "nail-headed" structures (NS), which are described for the first time in arthropod compound eyes. Each NS is composed of two components: a rod-like stalk and a cup-like depression. The TEM study shows that the glands are class 3 epidermal glands as defined by Noirot and Quennedey (1974, 1991). Each gland consists of 3 cells: a gland cell, an intermediary cell, and a duct (canal) cell. The gland cell contains abundant electron-lucent vesicles, while the intermediary cell contains a large number of osmiophilic secretory granules. These two cells might secrete different substances which mix together in the dilated sac-like portion of the conducting canal before final release. The possible functions of the secretions released from these glands are discussed.
利用光学显微镜、扫描电子显微镜和透射电子显微镜，描述了在水黾（Aquarius remigis）复眼中发现的小眼间外分泌腺的精细结构。这些腺体的腺孔特化为微小的“钉头”结构（NS），这是在节肢动物复眼中首次描述的。每个NS由两个部分组成：一个杆状柄和一个杯状凹陷。透射电子显微镜研究表明，这些腺体属于Noirot和Quennedey（1974年、1991年）定义的3类表皮腺。每个腺体由3个细胞组成：一个腺细胞、一个中间细胞和一个导管（管道）细胞。腺细胞含有丰富的电子透明小泡，而中间细胞含有大量嗜锇性分泌颗粒。这两个细胞可能分泌不同的物质，这些物质在导管的扩张囊状部分混合后最终释放。讨论了这些腺体释放的分泌物可能具有的功能。
