کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8626795 1568602 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A tiny visual system - retinula axons and visual neuropils of Neobisium carcinoides (Hermann, 1804) (Chelicerata, Arachnida, Pseudoscorpiones)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
A tiny visual system - retinula axons and visual neuropils of Neobisium carcinoides (Hermann, 1804) (Chelicerata, Arachnida, Pseudoscorpiones)
چکیده انگلیسی
Only a few studies have examined the visual system of Pseudoscorpiones until now. To fill this knowledge gap we analysed the axonal trajectories and neuropil architecture of the visual system of the pseudoscorpion Neobisium carcinoides (Hermann, 1804) with different neuroanatomical techniques. The R-cell axon terminals were identified with Cobalt fills and the morphology of the visual neuropils and the protocerebrum generally is described by means of the osmium-ethyl gallate procedure and TEM. N. carcinoides has two lateral eyes on each side of the prosoma. The R-cells of the eyes per hemisphere are linked to a first and a second visual neuropil, located in the dorsolateral protocerebrum. The first visual neuropil is subdivided into two hemineuropils, one for each lateral eye, while the second neuropil is not. Furthermore, the two-layered arcuate body is found − isolated from the visual neuropils − in the midline of the protocerebrum at a dorsoposterior position. These findings allow a detailed comparison of the pseudoscorpion visual system with that of other previously studied taxa and shed new light on lateral eye evolution in Chelicerata.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Zoologischer Anzeiger - Volume 273, March 2018, Pages 164-172
نویسندگان
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