No evidence for regeneration of pectines in the scorpion Euscorpius italicus (Herbst, 1800)

IF 1.1 4区 生物学 Q4 ANATOMY & MORPHOLOGY
Acta Zoologica Pub Date : 2023-04-28 DOI:10.1111/azo.12466
Torben Stemme
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引用次数: 0

Abstract

Although scorpions have comparatively low regenerative potential, legs and pedipalps are able to regenerate some structures in an often incomplete manner. The most intriguing scorpion appendages are the ventrally located pectines. These organs are equipped with numerous sensilla that scan the substrate for mechanosensory- and chemosensory cues. Due to their ventral position and frequent substrate contact, pectines are vulnerable to traumatic injuries. Pecten malformations have been hypothesized to be the result of incomplete regeneration. To investigate their regeneration capabilities, the pectines of postembryonic stages of Euscorpius italicus (Herbst, 1800) were amputated before the second moult at three different positions. Data on intermoult periods and the number of pectinal teeth were gathered for approximately 2.5 years. The regeneration process on exuviae of up to six moulting events was documented by photographs and confocal laser-scanning microscopy. Regardless of the amputation site, no evidence for regenerative capabilities of pectines in E. italicus could be reported. Thus, incomplete regenerations mentioned in the literature are likely the result of simple wound healing. Depending on habitat complexity, substrate contact time of the pectines seem to differ, which might be interpreted as a trade-off between highest sensory input and the avoidance of traumatic injury of the pectines.

Abstract Image

没有证据表明蝎子 Euscorpius italicus (Herbst, 1800) 的栉水母会再生
虽然蝎子的再生能力相对较低,但腿和足爪能够再生出一些结构,而且往往是不完整的。最有趣的蝎子附肢是位于腹部的栉状突。这些器官上有许多感觉器,可以扫描基质,寻找机械感觉和化学感觉线索。由于其腹侧位置和与底物的频繁接触,栉状突起很容易受到外伤。栉水母的畸形被认为是不完全再生的结果。为了研究栉水母的再生能力,我们在 Euscorpius italicus(Herbst,1800 年)第二次蜕皮前在三个不同位置截去了其胚后阶段的栉水母。收集了大约 2.5 年的蜕皮间隔期和栉齿数量数据。通过照片和共聚焦激光扫描显微镜,记录了最多六次蜕皮的栉齿再生过程。无论截肢部位如何,都没有发现栉水母具有再生能力的证据。因此,文献中提到的不完全再生可能是简单伤口愈合的结果。根据栖息地的复杂程度,栉水母接触底物的时间似乎有所不同,这可能被解释为在最高的感官输入和避免栉水母受到创伤之间进行权衡。
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来源期刊
Acta Zoologica
Acta Zoologica 生物-动物学
CiteScore
2.90
自引率
8.30%
发文量
35
审稿时长
>12 weeks
期刊介绍: Published regularly since 1920, Acta Zoologica has retained its position as one of the world''s leading journals in the field of animal organization, development, structure and function. Each issue publishes original research of interest to zoologists and physiologists worldwide, in the field of animal structure (from the cellular to the organismic level) and development with emphasis on functional, comparative and phylogenetic aspects. Occasional review articles are also published, as well as book reviews.
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