| Title: | Ultrastructure and distribution of sensory receptors on the nonolfactory organs of the soldier caste in subterranean termite (Coptotermes spp.) |
| Author(s): | Wikantyoso B; Imai T; Himmi SK; Yusuf S; Hata T; Yoshimura T; |
| Address: | "Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan; Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Jl. Raya Bogor Km 46, Cibinong, Bogor, 16911, Indonesia. Electronic address: wikantyoso_bramantyo@rish.kyoto-u.ac.jp. Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan. Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Jl. Raya Bogor Km 46, Cibinong, Bogor, 16911, Indonesia" |
| DOI: | 10.1016/j.asd.2022.101201 |
| ISSN/ISBN: | 1873-5495 (Electronic) 1467-8039 (Linking) |
| Abstract: | "The soldier caste of termites uses sensilla to sense pheromonal, tactile, and vibrational cues to communicate inside and outside their nest. Although sensilla with many modalities on the antennae of subterranean termites have been well explored, there remains a lack of information regarding sensillum characteristics and distribution of the nonolfactory organs of the soldier caste in the Coptotermes genus. In this study, the ultrastructure of sensilla from the soldier caste of three Coptotermes spp. (Coptotermes formosanus, Coptotermes curvignathus, and Coptotermes gestroi) was observed by scanning and transmission electron microscopy, and the putative function of each type was deduced. Six total sensillum types were observed, with two mechanoreceptive sensillum types (hair and plate). The long flexible-peg mechanoreceptive sensilla may work as contact-chemoreceptive sensilla due to their elongated dendritic outer segments and uniporous characteristics. There was a significant depletion of mechano-chemoreceptive sensillum numbers in C. gestroi, which was compensated by a high density of short-peg mechanoreceptive sensilla on the pronotum. Finally, cuticular and innervation characteristics of thermo-/hygrosensitive sensilla were observed for the first time on the labrum of the soldier caste of Coptotermes" |
| Keywords: | "Animals *Isoptera Microscopy, Electron, Scanning Pheromones Sensilla/ultrastructure Sensory Receptor Cells Chemoreceptor Cuticular structures Dendrite Functional morphology Mechanoreceptor Sensory cells;" |
| Notes: | "MedlineWikantyoso, Bramantyo Imai, Tomoya Himmi, S Khoirul Yusuf, Sulaeman Hata, Toshimitsu Yoshimura, Tsuyoshi eng England 2022/08/23 Arthropod Struct Dev. 2022 Sep; 70:101201. doi: 10.1016/j.asd.2022.101201. Epub 2022 Aug 19" |
