eLife· 2026Q1
Morphology and ultrastructure of pharyngeal sense organs of Drosophila larvae
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- Q1SCImago
- 2026year
Short summary
Researchers have ultrastructurally analyzed the pharyngeal sensory system of Drosophila larvae, identifying 15 distinct sensilla (4 mechanosensory, 9 chemosensory, 2 dual-function) and characterizing 35 Type I and 6 Type II neurons.
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Key points
- Identified 15 pharyngeal sensilla in Drosophila larvae: 4 mechanosensory, 9 chemosensory, and 2 dual-function.
- Characterized 35 Type I neurons (6 mechanosensory, 29 chemosensory) and 6 Type II neurons with putative chemosensory roles.
- Mapped additional sensory structures including papilla sensilla and chordotonal organs in the cephalopharyngeal region.
- Provides a complete structural characterization of the larval pharyngeal sensory system.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract This study provides a comprehensive ultrastructural analysis of the pharyngeal sensory system in Drosophila melanogaster larvae, focusing on the four major pharyngeal sense organs: the ventral pharyngeal sensilla (VPS), dorsal pharyngeal sensilla (DPS), dorsal pharyngeal organ (DPO), and posterior pharyngeal sensilla (PPS). Our analysis revealed 15 sensilla across these organs, comprising four mechanosensory, nine chemosensory, and two dual-function sensilla. We identified 35 Type I neurons (six mechanosensory and 29 chemosensory) and six Type II neurons with putative chemosensory functions. Additional sensory structures, including papilla sensilla and chordotonal organs in the cephalopharyngeal region, were characterized. This detailed mapping and classification of pharyngeal sensory structures completes their structural characterization and provides a foundation for future anatomical and functional studies of sensory perception in insects. This work represents a significant step towards a complete analysis of the larval sensory system, providing new opportunities for investigating how an organism processes sensory information to navigate and interact with its environment.
The authors' abstract, as published at the source. eLife, 2026 · DOI ↗
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Field: Cellular and Molecular Neuroscience
Cellular and Molecular NeuroscienceNeuroscience