Microstructural comparison of pit organ between Hybrid sturgeon and Chinese sturgeon Acipenser sinensis

IF 1.2 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger Pub Date : 2023-12-08 DOI:10.1016/j.jcz.2023.12.002

Yiming Gao , Yong Zhang , Yuyang Fang , Yueping Zheng , Jianan Xu , Houyong Fan , Youji Wang , Menghong Hu

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Abstract

The present study was conducted to investigate the distribution of pit organ in the critically endangered Chinese sturgeon (Acipenser sinensis), the similarities and differences in the microstructure of pit organ between Hybrid sturgeon and Chinese sturgeon, and to provide a histological basis for studying the pit organ in sturgeon species. We used hematoxylin-eosin (HE) staining, nissl staining, multi-layer fine scanning, and scanning electron microscopy to compare and analyse the microstructure of pit organ between Hybrid sturgeon and Chinese sturgeon. The results showed that the structure of pit organ of Hybrid sturgeon and Chinese sturgeon are similar. The distribution density of pit organ in different parts of Chinese sturgeon was different, and the density of pit organ on the ventral surface of the snout was the highest. Scanning electron microscopy revealed that the pit organ of Hybrid sturgeon and Chinese sturgeon were densely packed and about 500–1000 μm wide. Nissl staining revealed that more peripheral nerves are distributed under the sensory and support cells of the pit organ. Based on previous research and our results, the increase in electrical receptivity of sturgeons with individual development is not only due to the increase in the number of inductive receptors, but may also be related to the increase in the width of the pit organ.

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杂交鲟与中华鲟坑器的显微结构比较

本研究旨在探讨濒危中华鲟（Acipenser sinensis）凹陷器官的分布、杂交中华鲟与中华鲟凹陷器官显微结构的异同，为研究中华鲟凹陷器官提供组织学依据。我们采用苏木精-伊红（HE）染色、尼氏染色、多层精细扫描和扫描电子显微镜等方法对杂交鲟与中华鲟凹陷器官的显微结构进行了比较和分析。结果表明，杂交鲟与中华鲟的坑器结构相似。中华鲟凹陷器官在不同部位的分布密度不同，其中吻部腹面的凹陷器官密度最高。扫描电子显微镜显示，杂交鲟和中华鲟的凹陷器官密集，宽约 500-1000 μm。Nissl染色显示，在鲟鱼蝮器官的感觉细胞和支持细胞下分布着较多的末梢神经。根据以往的研究和我们的结果，鲟鱼的电感受性随着个体发育而增加，这不仅是由于感应感受器数量的增加，还可能与坑器官宽度的增加有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Zoologischer Anzeiger 生物-动物学

CiteScore

2.80

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： Zoologischer Anzeiger - A Journal of Comparative Zoology is devoted to comparative zoology with a special emphasis on morphology, systematics, biogeography, and evolutionary biology targeting all metazoans, both modern and extinct. We also consider taxonomic submissions addressing a broader systematic and/or evolutionary context. The overall aim of the journal is to contribute to our understanding of the organismic world from an evolutionary perspective. The journal Zoologischer Anzeiger invites suggestions for special issues. Interested parties may contact one of the editors.