巨膜蜂的多尺度头部解剖(膜翅目:赤眼蜂科)。

IF 1.7 3区 农林科学 Q2 ENTOMOLOGY Arthropod Structure & Development Pub Date : 2023-09-01 DOI:10.1016/j.asd.2023.101299
Inna A. Desyatirkina , Anastasia A. Makarova , Song Pang , C. Shan Xu , Harald Hess , Alexey A. Polilov
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引用次数: 0

摘要

三维电子显微镜的方法最近得到了积极的发展,为形态学工作开辟了巨大的机会。这种方法对研究微小切片特别有用,因为它可以获得整个昆虫的完整系列高分辨率切片。对巨膈属的研究尤其重要,因为在该属的物种中发现了大多数神经元细胞核裂解的独特现象。在这项研究中,我们揭示了从器官到亚细胞结构的各个层面上的巨型芦苇头部的解剖结构。尽管身体很小,但viggianii的大多数器官系统在各个层面都保留了结构计划和组织的复杂性。该物种的肌肉和发育良好的口胃神经系统与体型较大的昆虫相对应,该物种的头部也有发育良好的气管系统。获得了M.viggianii头部在细胞和亚细胞水平上的重建,并分析了体积数据。共重建了689个头部有核细胞。viggianii的超微结构异常复杂,这种复杂性的进化优势可能是限制寄生蜂进一步小型化的因素之一。
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Multiscale head anatomy of Megaphragma (Hymenoptera: Trichogrammatidae)

Methods of three-dimensional electron microscopy have been actively developed recently and open up great opportunities for morphological work. This approach is especially useful for studying microinsects, since it is possible to obtain complete series of high-resolution sections of a whole insect. Studies on the genus Megaphragma are especially important, since the unique phenomenon of lysis of most of the neuron nuclei was discovered in species of this genus. In this study we reveal the anatomical structure of the head of Megaphragma viggianii at all levels from organs to subcellular structures. Despite the miniature size of the body, most of the organ systems of M. viggianii retain the structural plan and complexity of organization at all levels. The set of muscles and the well-developed stomatogastric nervous system of this species correspond to those of larger insects, and there is also a well-developed tracheal system in the head of this species. Reconstructions of the head of M. viggianii at the cellular and subcellular levels were obtained, and of volumetric data were analyzed. A total of 689 nucleated cells of the head were reconstructed. The ultrastructure of M. viggianii is surprisingly complex, and the evolutionary benefits of such complexity are probably among the factors limiting the further miniaturization of parasitoid wasps.

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来源期刊
CiteScore
3.50
自引率
10.00%
发文量
54
审稿时长
60 days
期刊介绍: Arthropod Structure & Development is a Journal of Arthropod Structural Biology, Development, and Functional Morphology; it considers manuscripts that deal with micro- and neuroanatomy, development, biomechanics, organogenesis in particular under comparative and evolutionary aspects but not merely taxonomic papers. The aim of the journal is to publish papers in the areas of functional and comparative anatomy and development, with an emphasis on the role of cellular organization in organ function. The journal will also publish papers on organogenisis, embryonic and postembryonic development, and organ or tissue regeneration and repair. Manuscripts dealing with comparative and evolutionary aspects of microanatomy and development are encouraged.
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