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- W4387448445 abstract "Sensory perception is the ability through which an organism is able to process sensory stimuli from the environment. This stimulus is transmitted from the peripheral sensory organs to the central nervous system, where it is interpreted. Drosophila melanogaster larvae possess peripheral sense organs on their head, thoracic, and abdominal segments. These are specialized to receive diverse environmental information, such as olfactory, gustatory, temperature or mechanosensory signals. In this work, we complete the description of the morphology of external larval sensilla and provide a complete map of the ultrastructure of the different types of sensilla that comprise them. This was achieved by 3D electron microscopic analysis of partial and whole body volumes, which contain high-resolution and complete three-dimensional data on the anatomy of the sensilla and adjacent ganglia.Our analysis revealed three main types of sensilla on thoracic and abdominal segments: the papilla sensillum, the hair sensillum and the knob sensillum. They occur either solitary or organized in compound sensilla such as the thoracic keilin’s organ or the terminal sensory cones. We present a spatial map defining these sensilla by their position on thoracic and abdominal segments. Further, we identify and name the sensilla located at the larval head and the last fused abdominal segments. We show that mechanosensation dominates in the larval peripheral nervous system, as most sensilla have corresponding structural properties. The result of this work, the construction of a complete structural and neuronal map of the external larval sensilla, provides the basis for following molecular and functional studies to understand which sensory strategies the Drosophila larva employs to orient itself in its natural environment." @default.
- W4387448445 created "2023-10-10" @default.
- W4387448445 creator A5065000705 @default.
- W4387448445 date "2023-10-09" @default.
- W4387448445 modified "2023-10-11" @default.
- W4387448445 title "eLife assessment: Morphology and ultrastructure of external sense organs of Drosophila larvae" @default.
- W4387448445 doi "https://doi.org/10.7554/elife.91155.1.sa0" @default.
- W4387448445 hasPublicationYear "2023" @default.
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