Central nervous projections of mechanoreceptors in the spider Cupiennius salei Keys.

Ks, Babu; Barth, Friedrich G.

doi:10.1007/bf00223146

Cited by 25 publications

(31 citation statements)

References 22 publications

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“…Dendrites, somata and parts of the axons are embedded in the hypodermis adjacent to the exoskeleton and can be dissected and used as whole-mount preparations. Axons of these and other mechanosensory neurons terminate in the subesophageal ganglia (Milde and Seyfarth 1988; Babu and Barth 1989: Anton and Barth 1993). …”

Section: Resultsmentioning

confidence: 99%

“…2a, 3c). These large neurons were mostly found in the mid-ventral region of the subesophageal ganglia and are likely motor and interneurons (Milde and Seyfarth 1988; Babu et al 1989). Characteristic neuron clusters on the anterolateral part of each leg ganglion (anterolateral neuron clusters; ANC) consisting mainly of small neurons (5–10 µm soma diameter) also displayed anti-ChAT labeling and expressed the CsChAT gene (Figs.…”

Section: Resultsmentioning

confidence: 99%

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The distribution of cholinergic neurons and their co-localization with FMRFamide, in central and peripheral neurons of the spider Cupiennius salei

et al. 2017

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The spider Cupiennius salei is a well-established model for investigating information processing in arthropod sensory systems. Immunohistochemistry has shown that several neurotransmitters exist in the C. salei nervous system, including GABA, glutamate, histamine, octopamine and FMRFamide, while electrophysiology has found functional roles for some of these transmitters. There is also evidence that acetylcholine (ACh) is present in some C. salei neurons but information about the distribution of cholinergic neurons in spider nervous systems is limited. Here, we identify C. salei genes that encode enzymes essential for cholinergic transmission: choline ACh transferase (ChAT) and vesicular ACh transporter (VAChT). We used in-situ hybridization with an mRNA probe for C. salei ChAT gene to locate somata of cholinergic neurons in the central nervous system and immunohistochemistry with antisera against ChAT and VAChT to locate these proteins in cholinergic neurons. All three markers labeled similar, mostly small neurons, plus a few mid-sized neurons, in most ganglia. In the subesophageal ganglia, labeled neurons are putative efferent, motor or interneurons but the largest motor and interneurons were unlabeled. Groups of anti-ChAT labeled small neurons also connect the optic neuropils in the spider protocerebrum. Differences in individual cell labeling intensities were common, suggesting a range of ACh expression levels. Double-labeling found a subpopulation of anti-VAChT-labeled central and mechanosensory neurons that were also immunoreactive to antiserum against FMRFamide-like peptides. Our findings suggest that ACh is an important neurotransmitter in the C. salei central and peripheral nervous systems.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

The distribution of cholinergic neurons and their co-localization with FMRFamide, in central and peripheral neurons of the spider Cupiennius salei

et al. 2017

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“…We tried to explain how sand scorpions orient towards their prey when there is any vibration disturbance caused by prey. They have eight clusters of neurons in the brain to process stimulus-locked neuron firings of the sense organs on their eight legs (Anton & Barth, 1993, Babu & Barth, 1989. It is modelled simply as eight command neurons with inhibitory interactions in our neural system.…”

Section: Resultsmentioning

confidence: 99%

“…Then the distribution of neuron firings can vote to determine the resource direction. In fact, arachnids have sensory projections to the central nervous system for each leg (Babu & Barth, 1989, Anton & Barth, 1993. Previously Brownell and Farley (1979) suggested that eight command neurons (or eight clusters of neurons in the brain) accumulate neuron firings from mechanoreceptors on the eight legs of scorpions, respectively and also interact each other with triad inhibitions.…”

Section: Introductionmentioning

confidence: 99%

Tactile Information Processing for the Orientation Behaviour of Sand Scorpions

Kim¹

2008

Sensors: Focus on Tactile Force and Stress Sensors

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“…늑대거미 는 잘 발달된 시각기를 이용하여 먹이를 포획하는 배회성 거미 종류로, 먹이 포획이나 배우자 선택, 그리고 포식자로 부터 자신을 보호하는 일련의 행동 등에 예민한 감각과 뛰 어난 운동능력을 십분 활용하고 있는데 (Griswold, 1993), 이 러한 행동학적 특성들이 이들이 지닌 중추신경계로부터 기 인되고 있다. 거미류의 중추신경계에 대한 조직학적 연구는 Babu (1975연구는 Babu ( , 1985, Babu & Barth (1984), Weygoldt (1985) 등에 의해 수 행되었고, 중추신경계의 포스파타아제 (phosphatase)의 활성 (Meyer, 1979)이나 특정 뉴런의 분포 Babu & Barth, 1989) 등에 대한 연구가 이루어진 바 있다. 또한 Babu (1975) (Fig.…”

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Development of the Central Nervous System in the Wolf Spider Arctosa kwangreungensis (Araneae: Lycosidae)

Yang¹,

Moon²

2012

Korean Journal of Microscopy

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The morphological and histologic differentiation of the central nervous system (CNS) in the wolf spider Arctosa kwangreungensis with respect to postembryonic development are studied using light and scanning electron microscopes. The organization of CNS which consisted of supraesophageal ganglion (SpG) and subesophageal ganglion (SbG) are established prior to the postembryo stage. The brain of first instar spiderling after a molt of the postembryo is also made up of supraesophageal ganglion and subesophageal ganglion. Although development of the optic nerve and optic lobe in SpG are not completed during the postembryoic stage, completion of whole neural system resemble to that of adult are established during the second instar stage. In particular, optic gangalion is developed from the undifferentiated cell clusters of the SpG, moreover four pairs of appendage ganglia and another pairs of abdominal ganglia are produced from the SbG. Nerve cells of the most developing stages are composed of typical monopolar neur1ons, and total three types of neurons can be identified through the histological and morphological basis of present study. These cell clusters are differentiated into neurons and grow dendritic fibers according to further development of the CNS.

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Central nervous projections of mechanoreceptors in the spider Cupiennius salei Keys.

Cited by 25 publications

References 22 publications

The distribution of cholinergic neurons and their co-localization with FMRFamide, in central and peripheral neurons of the spider Cupiennius salei

The distribution of cholinergic neurons and their co-localization with FMRFamide, in central and peripheral neurons of the spider Cupiennius salei

Tactile Information Processing for the Orientation Behaviour of Sand Scorpions

Development of the Central Nervous System in the Wolf Spider Arctosa kwangreungensis (Araneae: Lycosidae)

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