FB2026_03 , released September 17, 2026
CV Term Report
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Term water-sensing neuron of labellar taste bristle ID (Ontology) FBbt:00100042 (Fly Anatomy)
Definition A water-sensing neuron that innervates a sensillum of the labellum (Montell, 2009). One of these neurons is found innervating every L-type sensillum and some S-type sensilla, but they are absent from I-type sensilla (Jaeger et al., 2018). They express the osmosensitive ion channel ppk28 (Freeman and Dahanukar, 2015).[ FlyBase:FBrf0208984 FlyBase:FBrf0229608 FlyBase:FBrf0248270 ]
Also Known As"labellar taste bristle type C gustatory receptor neuron" ; "type C GRN of labellum" ; "water-sensing neuron of the labellum"
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VFB:FBbt_00100042
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Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 water-sensing neuron of labellar taste bristle (all annotations which use CV term, excluding "NOT" statements)
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gustatory receptor neuron
 |__water-sensing neuron________________________
labellar taste bristle sensory neuron           |
 |__labellar taste bristle chemosensory neuron__|
gustatory receptor neuron of the labellum       |
 |__labellar taste bristle chemosensory neuron__|
                                                water-sensing neuron of labellar taste bristle  8 rec.
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Is a labellar taste bristle chemosensory neuron
water-sensing neuron
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VFB:FBbt_00100042