一些壁虎正常尾鳞和再生尾鳞微纹饰和粘附刚毛结构的显微研究。

IF 2 4区 生物学 Q3 CELL BIOLOGY
Antonio Bonfitto, Lorenzo Alibardi
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引用次数: 0

摘要

本文综述了近年来关于一些树栖壁虎尾部鳞片表皮微纹饰和粘附刚毛的形成、精细结构的研究进展。该研究利用透射和扫描电子显微镜,结合免疫标记,检测微纹饰的主要蛋白质,称为角膜β蛋白。这是一种特殊的小蛋白质,其中心区域含有β -薄片,构成了鳞片和衬垫的大部分角质层。这些蛋白质被包裹成长索,形成短刺或长刚毛。尾鳞上的小刺形状各异,但尺寸有限,在0.5-2.0µm之间。在靠近尾部末端的稀疏区域,一些鳞片形成粘垫,其微纹饰长得更长,在本研究物种中形成长度为10-30µm的刚毛。这一过程产生了坚硬但灵活的刚毛,树栖壁虎用它来粘附在垂直或倒置的基材或树枝上。在尾部再生过程中,一些鳞片也再生黏附刚毛并产生新的黏附垫。尾端刚毛的形成过程与在指刚毛形成过程中观察到的过程类似。这源于特定表皮层(清晰)与另一层(Oberhäutchen)的相互作用,这是在鳞片中形成的。刚毛在长度、直径或末端乔木上变化,它们类似于指的那些,尽管较短。尾端黏附垫的存在加强了这些树栖蜥蜴在其环境中的抓握能力和机动性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Microscopic studies on the structure of microornamentation and adhesive setae in normal and regenerating tail scales of some geckos.

The present review summarizes recent information on the formation and fine structure of epidermal microornamentation and adhesive setae in scale pads of the tail in some arboreal geckos. The study utilizes transmission and scanning electron microscopy, in conjunction with immunolabeling, to detect the main proteins of the microornamentation, known as Corneous Beta Proteins. These are special small proteins with a central region containing beta-sheets that form most of the corneous material of scales and pads. These proteins are packed into long cords that form short spinulae or longer setae. In tail scales, the spinulae feature different shapes but possess a limited size, 0.5-2.0 µm. In sparse areas located toward the distal part of the tail, some scales form adhesive pads, and their microornamentation grows longer, forming setae of 10-30 µm in length in the species studied herein. This process gives rise to stiff but flexible bristles that arboreal geckos use for adhesion on vertical or inverted substrates or tree branches. During tail regeneration, some scales also regenerate the adhesive setae and give rise to new adhesive pads. Caudal setae are formed by a process similar to that observed during the formation of digital setae. This derives from the interaction of a specific epidermal layer (clear) with another layer (Oberhäutchen), which are formed in the scale pads. Setae vary in length, diameter, or terminal arborization, and they resemble those of the digits, albeit shorter. The presence of caudal adhesive pads reinforces the prehensibility and maneuverability of these arboreal lizards in their environment.

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来源期刊
Histology and histopathology
Histology and histopathology 生物-病理学
CiteScore
3.90
自引率
0.00%
发文量
232
审稿时长
2 months
期刊介绍: HISTOLOGY AND HISTOPATHOLOGY is a peer-reviewed international journal, the purpose of which is to publish original and review articles in all fields of the microscopical morphology, cell biology and tissue engineering; high quality is the overall consideration. Its format is the standard international size of 21 x 27.7 cm. One volume is published every year (more than 1,300 pages, approximately 90 original works and 40 reviews). Each volume consists of 12 numbers published monthly online. The printed version of the journal includes 4 books every year; each of them compiles 3 numbers previously published online.
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