ArticleThe Journal of comparative neurology2021
Antennal-lobe neurons in the moth Helicoverpa armigera: Morphological features of projection neurons, local interneurons, and centrifugal neurons.
Article in The Journal of comparative neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 14 citations in OpenAlex.
- Connectivity of serotonin neurons reveals a constrained inhibitory subnetwork within the olfactory system.Journal of neurophysiology · 2026Article
- Neuron synchronization analyzed through spatial-temporal attention.Frontiers in computational neuroscience · 2025Article
- Combinatorial encoding of odors in the mosquito antennal lobe.Nature communications · 2023Article
- Organization of the parallel antennal-lobe tracts in the moth.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2022Review
- Experimental and theoretical probe on mechano- and chemosensory integration in the insect antennal lobe.Frontiers in physiology · 2022Article
- Article
- Antennal-lobe neurons in the moth Helicoverpa armigera: Morphological features of projection neurons, local interneurons, and centrifugal neurons.The Journal of comparative neurology · 2021Article
- Neuronal architecture of the second-order COScientific reports · 2020Article
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Authors and funding
5 authors at 2 institutions in 1 country.
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Abstract
The relatively large primary olfactory center of the insect brain, the antennal lobe (AL), contains several heterogeneous neuronal types. These include projection neurons (PNs), providing olfactory information to higher-order neuropils via parallel pathways, and local interneurons (LNs), which provide lateral processing within the AL. In addition, various types of centrifugal neurons (CNs) offer top-down modulation onto the other AL neurons. By performing iontophoretic intracellular staining, we collected a large number of AL neurons in the moth, Helicoverpa armigera, to examine the distinct morphological features of PNs, LNs, and CNs. We characterize 190 AL neurons. These were allocated to 25 distinct neuronal types or sub-types, which were reconstructed and placed into a reference brain. In addition to six PN types comprising 15 sub-types, three LN and seven CN types were identified. High-resolution confocal images allowed us to analyze AL innervations of the various reported neurons, which demonstrated that all PNs innervating ventroposterior glomeruli contact a protocerebral neuropil rarely targeted by other PNs, that is the posteriorlateral protocerebrum. We also discuss the functional roles of the distinct CNs, which included several previously uncharacterized types, likely involved in computations spanning from multisensory processing to olfactory feedback signalization into the AL.
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