FB2026_03 , released September 17, 2026
CV Term Report
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Term peritracheal cell ID (Ontology) FBbt:00006016 (Fly Anatomy)
Definition Cell associated with the trachea, found in segmentally-repeated positions. In the embryo and larva, these are associated with branchpoints of the main trachea, in stereotypical positions (Hartenstein and Jan, 1992; O'Brien and Taghert, 1998; Laneve et al., 2013), whereas adult distribution is more varied (O'Brien and Taghert, 1998). Some of these express peptide(s) that appear to be released during larval ecdysis or adult eclosion. There may also be non-peptidergic (PMa) peritracheal cells associated with the peptidergic (PM) cells.[ FlyBase:FBrf0057603 FlyBase:FBrf0100681 FlyBase:FBrf0220777 ]
Also Known As"PT cell"
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Data ClassFieldDirect annotations
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 peritracheal cell (all annotations which use CV term, excluding "NOT" statements)
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organ system
 |__tracheal system__
cell                 |
 |__somatic cell_____|
                     peritracheal cell  16 rec.
                      |__adult peritracheal PM cell 3 rec.
                      |__embryonic/larval peritracheal cell 14 rec.
                          |__embryonic/larval peritracheal PM cell 4 rec.
                          |__embryonic/larval peritracheal PMa cell
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Is a somatic cell
Part of tracheal system
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