FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term Malpighian tubule tiny cell ID (Ontology) FBbt:00110861 (Fly Anatomy)
Definition Small cell found in the lower part of the tubule and in the ureter. It contains a reduced cytoplasm, a compact nucleus and thin processes and it lies close to the tubular walls. They are distinct from the stellate cells.[ FlyBase:FBrf0093736 FlyBase:FBrf0202697 FlyBase:FBrf0245230 ]
Comment These cells may be neurosecretory (Sozen et al., 1997). In the adult they are stem cells (Singh et al., 2007; Wang and Spradling, 2020). Tiny cells are also found in the posterior midgut (Sozen et al., 1997).
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  somatic cell
   |__specialized Malpighian tubule cell
       |__Malpighian tubule tiny cell  6 rec.
           |__adult renal stem cell 6 rec.
           |__embryonic Malpighian tubule tiny cell
           |__embryonic/larval Malpighian tubule tiny cell
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Is a specialized Malpighian tubule cell
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