Protocerebrum
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Histological survey of protocerebral areas and retrocerebral complex of Melipona quadrifasciata anthidioides workers (Hymenoptera, Apidae, Meliponini) / Mapeamento histológico das áreas protocerebrais e do complexo retrocerebral de operárias de Melipona quadrifasciata anthidioides (Hymenoptera, Apidae, Meliponini)
The stingless bees colony comprises a queen, workers of diferent ages that perform different tasks and males only present before the queen´s fecundation. Among the workers, only the oldest ones foragers keep a direct contact with the light/dark environmental cycle. Biological rhythms are present and are generated by the circadian system located in the centr
Publicado em: 2009
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2. A central neural circuit for experience-independent olfactory and courtship behavior in Drosophila melanogaster
We have studied the function of the major central olfactory pathway in fruit flies. Key elements of this pathway, the projection neurons (PNs), connect the antennal lobes with the lateral protocerebrum both directly and indirectly, the latter via the mushroom bodies (MBs). Transgenic expression of tetanus toxin in the majority of PNs and few MB neurons
The National Academy of Sciences.
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3. Early Development of Mushroom Bodies in the Brain of the Honeybee Apis mellifera as Revealed by BrdU Incorporation and Ablation Experiments
In the honeybee the mushroom bodies are prominent neuropil structures arranged as pairs in the dorsal protocerebrum of the brain. Each mushroom body is composed of a medial and a lateral subunit. To understand their development, the proliferation pattern of mushroom body intrinsic cells, the Kenyon cells, were examined during larval and pupal stages using th
Cold Spring Harbor Laboratory Press.
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4. Immunocytochemical Mapping of an RDL-Like GABA Receptor Subunit and of GABA in Brain Structures Related to Learning and Memory in the Cricket Acheta domesticus
The distribution of putative RDL-like GABA receptors and of γ-aminobutyric acid (GABA) in the brain of the adult house cricket Acheta domesticus was studied using specific antisera. Special attention was given to brain structures known to be related to learning and memory. The main immunostaining for the RDL-like GABA receptor was observed in mushroom bodie
Cold Spring Harbor Laboratory Press.
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5. Cellular localization of the insect prothoracicotropic hormone: In vitro assay of a single neurosecretory cell
The distribution of prothoracicotropic hormone in the pupal brain of Manduca sexta has been determined by an in vitro assay for prothoracic gland activation. Prothoracicotropic activity was observed in both the brain and retrocerebral complex, but predominantly in the dorosolateral regions of the protocerebrum. Of the two groups of neurosecretory cells prese
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6. Identification of Mushroom body miniature, a zinc-finger protein implicated in brain development of Drosophila
The mushroom bodies are bilaterally arranged structures in the protocerebrum of Drosophila and most other insect species. Mutants with altered mushroom body structure have been instrumental not only in establishing their role in distinct behavioral functions but also in identifying the molecular pathways that control mushroom body development. The mushroom b
National Academy of Sciences.
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7. The Organization of Extrinsic Neurons and Their Implications in the Functional Roles of the Mushroom Bodies in Drosophila melanogaster Meigen
Although the importance of the Drosophila mushroom body in olfactory learning and memory has been stressed, virtually nothing is known about the brain regions to which it is connected. Using Golgi and GAL4–UAS techniques, we performed the first systematic attempt to reveal the anatomy of its extrinsic neurons. A novel presynaptic reporter construct, UAS-ne
Cold Spring Harbor Laboratory Press.
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8. Integrative Properties of the Pe1 Neuron, a Unique Mushroom Body Output Neuron
A mushroom body extrinsic neuron, the Pe1 neuron, connects the peduncle of the mushroom body (MB) with two areas of the protocerebrum in the honeybee brain, the lateral protocerebral lobe (LPL) and the ring neuropil around the α-lobe. Each side of the bee brain contains only one Pe1 neuron. Using a combination of intracellular recording and neuroanatomical
Cold Spring Harbor Laboratory Press.
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9. Insect NMDA receptors mediate juvenile hormone biosynthesis
In vertebrates, the N-methyl-d-aspartate subtype of glutamate receptors (NMDAR) appears to play a role in neuronal development, synaptic plasticity, memory formation, and pituitary activity. However, functional NMDAR have not yet been characterized in insects. We have now demonstrated immunohistochemically glutamatergic nerve terminals in the corpora a
The National Academy of Sciences.