…The inner protocuticle makes up the majority of the cuticle and is divided into two layers, the inner and outer. In the inner half of the outer cuticle and the protocuticle, the gaps between the chitin molecules are filled with a sclerotin protein, giving the epidermis such strength that it is called an exoskeleton. These layers are perforated by numerous pore tubes emanating from the inner dermal cell layer, and if the outer layer is worn down, secretions from the pore tubes travel to the outer layer to repair it. … *Some of the terminology that mentions "sclerotin" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…その内部にある原表皮はクチクラの大部分を占め,内・外2層に分かれる。外表皮の内半部と原表皮では,キチンchitin分子のすき間をスクレロチンsclerotinという硬タンパク質が埋めているので,表皮が外骨格と呼ばれるほどの強靱性をもつことになる。これらの層には,内部の真皮細胞層から出た多数の孔管が貫通していて,もし表層が磨滅すれば,その分泌物が孔管を通って表層に移動して修復される。… ※「sclerotin」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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