part of fasciculates with develops from capable of expresses sends synaptic output throughout has sensory dendrite in Or42b antennal lobe glomerulus DM1 adult antennal lobe commissure antennal olfactory receptor neuron precursor Nba antennal olfactory receptor neuron of basiconic sensillum adult antennal lobe receptor neuron bilateral antennal lobe receptor neuron antennal basiconic sensillum ab1 adult olfactory receptor neuron Or42b DoOR:Or42b VFB:FBbt_00067046 FlyBrain_NDB:10401 FBbt:00067046 adult odorant receptor neuron Or42b adult ORN Or42b Adult olfactory receptor neuron (ORN) that expresses Or42b (Benton et al., 2025). Its axon innervates antennal lobe glomerulus DM1, bilaterally (Benton et al., 2025). Its dendrite transduces signals from antennal basiconic sensillum ab1 and it responds to esters (Benton et al., 2025). It develops from an Nba precursor (Benton et al., 2025). There are approximately 30-40 of these cells on each side (Grabe et al., 2016; Benton et al., 2025). odorant receptor neuron DM1 ORN_DM1 fly_anatomy.ontology ORN_DM1 adult ORN (Or42b) adult ORN ab1A sensory perception detection of molecule of fungal origin