Brain architecture of the Pacific White Shrimp Penaeus vannamei Boone, 1931 (Malacostraca, Dendrobranchiata): correspondence of brain structure and sensory input?

Brain architecture of the Pacific White Shrimp Penaeus vannamei Boone, 1931 (Malacostraca, Dendrobranchiata): correspondence of brain structure and sensory input?
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太平洋白虾南美白对虾的大脑结构 Boone,1931(Malacostraca,Dendrobranchiata):大脑结构和感觉输入的对应关系?

DOI:
10.1007/s00441-017-2607-y
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发表时间:
1931
影响因子:
3.6
通讯作者:
Harzsch S
Harzsch S
中科院分区:
生物学3区
文献类型:
--
作者:
Meth R;Wittfoth C;Harzsch S

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南美白对虾(Penaeus vannamei)(Dendrobranchiata,Decapoda)以“太平洋白色虾”而闻名,是目前世界上商业化水产养殖中最重要的甲壳类动物。虽然甲壳类动物的神经解剖学已经在爬行十足类(“地面生活十足类”)的代表中得到了很好的研究,但只有少数研究集中在虾和对虾上。为了深入了解P.本研究采用神经解剖学方法,包括X线显微计算机断层扫描、三维重建和免疫组织化学染色,结合激光共聚焦显微镜和连续切片。P. vannamei展示了所有显著的神经柱和神经束,这些神经柱和神经束是十足类甲壳动物的地面模式的特征。然而,一些神经柱的大小比例是显着的。巨大的外侧前脑包括视神经柱、半椭圆体和终髓。这一观察结果与这些动物复眼的大尺寸相对应。相比之下,大脑的其余中间部分相对较小。它主要由成对的天线2神经柱,而中脑化学感觉叶发挥次要作用。我们的研究结果表明,从复眼的视觉输入和第二对触角的机械感觉输入是主要的感觉方式,这是大脑的过程。
Penaeus vannamei(Dendrobranchiata, Decapoda) is best known as the “Pacific White Shrimp” and is currently the most important crustacean in commercial aquaculture worldwide. Although the neuroanatomy of crustaceans has been well examined in representatives of reptant decapods (“ground-dwelling decapods”), there are only a few studies focusing on shrimps and prawns. In order to obtain insights into the architecture of the brain ofP. vannamei, we use neuroanatomical methods including X-ray micro-computed tomography, 3D reconstruction and immunohistochemical staining combined with confocal laser-scanning microscopy and serial sectioning. The brain ofP. vannameiexhibits all the prominent neuropils and tracts that characterize the ground pattern of decapod crustaceans. However, the size proportion of some neuropils is salient. The large lateral protocerebrum that comprises the visual neuropils as well as the hemiellipsoid body and medulla terminalis is remarkable. This observation corresponds with the large size of the compound eyes of these animals. In contrast, the remaining median part of the brain is relatively small. It is dominated by the paired antenna 2 neuropils, while the deutocerebral chemosensory lobes play a minor role. Our findings suggest that visual input from the compound eyes and mechanosensory input from the second pair of antennae are major sensory modalities, which this brain processes.
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DOI: --
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DOI: --
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