ventral cibarial sense organ [FBbt_00004143]

ventral cibarial sense organ

ID: FBbt_00004143

Ventral-most cibarial gustatory sense organ near the upper end of the posterior cibarial plate of the adult pharynx, and innervated by the pharyngeal nerve (Demerec, 1994; Nayak and Singh, 1983). It is flanked distally and proximally by the ventral row bristles and the dorsal row bristles, respectively. It comprises three sensilla (distal, middle and proximal), containing in total about 8 gustatory receptor neurons.

Nayak & Singh (1983) claim the ventral cibarial sense organ is composed of two sensilla: the ventral and the dorsal sensilla. In contrast, Montell (2009), Vosshall & Stocker (2007), and Stocker & Schorderet (1981) report three sensilla: the proximal, the middle and the distal sensilla. This is shown via enhancer trap activity in Gendre et al., 1994. We follow the report of three sensilla. Similarly, the number of chemosensory neurons varies: both Nayak & Singh (1983), and Stocker (1994) report 6, whilst Gendre et al. (1994), Montell (2009), and Vosshall & Stocker (2007) report 8. We follow the latter.