Sensilla trichodea

Using a specific antibody, Shanbhag and collaborators [34] demonstrated that LUSH is expressed in sensilla trichodea of the Drosophila antennae along with two other putative odorant-binding proteins Obp83a (PBPRP-3, OS-F) and Obp83b (OS-E). When antennal sections of the LUSH-deficient mutant were la-... 

In a study comparing nine moth species, Steinbrecht (1996) observed that cross-reactivity of specific antisera to one species with PBPs from another species was not correlated with taxonomic relatedness of the species, but rather with the pheromone chemistry. Given that the highly divergent specificity of pheromone receptor cells in the Noctuidae species studied appears to be mirrored by a similar diversity of PBP sequences in sensilla trichodea, Steinbrecht suggested that PBPs participate in odorant discrimination (Steinbrecht, 1996). 

Keil T. A. (1984a) Reconstruction and morphometry of the silkmoth olfactory hairs a comparative study of sensilla trichodea on the antennae of male Antheraea polyphemus and A. Pernyi (Insecta Lepidoptera). Zoomorphologie 104, 147-156. 

Figure 17.1 Scanning electron microscopy of a male antennae. A positions of short (sst) and long (1st) sensilla trichodea on the ventral side, the latter being arranged in parallel rows, B sensilla coeloconica (sc) distributed among short sensilla trichodea. Bars 50 pm in A, 10 pm in B (adapted from Jacquin-Joly etal., 2001, by permission of Oxford University Press)...

Figure 17.5 Expression pattern of MbraCSP-A6 isoform in M. brassicae male antennae revealed by in situ hybridization to mRNA. A expression of MbraCSP-A6 isoform at the base of a sensillum trichodium. B section through the cuticle showing labeled sensilla trichodea (s.t.) bases long ones (arranged in a row) and short ones (randomly distributed) a sensillum coeloconicum (s.c.), visible on the same section, is not labeled. Bars 10 pm (adapted from Jacquin-Joly eta ., 2001, by permission of Oxford University Press).

Laue M., Maida R. and Redkozubov A. (1997) G-protein activation, identification and immunolocalization in pheromone-sensitive sensilla trichodea of moths. Cell Tissue Res. 288, 149-158. 

Fig. 4.4 SEM images of the brightly colored regions of G. weiskei typically found in regions A-F of Fig. 4.3, illustrating the macroscopic hair-like scales (Sensilla trichodea) that are characteristic of these regions and the quasi-periodic nanocone stmctures found between them (Reproduced with permission from [40])...

Prbesner 242,243) found specific receptor cells in the male antennae sensilla trichodea for the sex pheromones of two moth species, Z-9-tetradecenyl acetate (48) in Adoxyphies orana and Z-ll-tetradecenyl acetate (49) and Z-9-tetradecenyl acetate (48) in Eulia ministrana, Z-ll-tetradecenyl acetate (49) and Z-9-tetradecenol (50) were also isolated from A, orana. 

Fig. 2.2(b) Transmission electron micrographs of Bombyx mori sensilla trichodea (above, x 20 000 and 40 000) and s. basiconica (below, x 20 000). Fixation by freeze substitution results in almost round cross-sectional profiles of the dendrites, containing a regular array of microtubules. Pore tubules are well fixed in the outer parts of the hair (courtesy of Steinbrecht, 1980). 

Table 2.1 Responses of five receptor cells (A to E) in male sensilla trichodea of Pseudaletia unipuncta to indicated amounts of test chemicals. Size of filled circles symbolizes frequency of nerve impulse response open circles indicate lack of response (courtesy of Priesner.)... 

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