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Nov 22, 2022 · Two metrics have been used to investigate quantitatively the olfactory sense in turtles (and in other taxa; Zelenitsky et al. 2009, 2011) using endocasts: the olfactory ratio (OR) i.e. the ratio between olfactory bulb and cerebral hemisphere maximum diameters (Bang and Cobb 1968; Bang and Wenzel 1985), and the volume of the nasal cavity ...
Jun 1, 2016 · In this study, among the turtles present in Japan, we examined the olfactory system of the snapping turtle Chelydra serpentina. Snapping turtles, belong to the family Chelydridae, are found in North America and becoming a problem as an invasive species in Japan (Kato and Etoh, 2012, Kobayashi et al., 2006, Steyermark et al., 2008).
- Nobuaki Nakamuta, Nobuaki Nakamuta, Shoko Nakamuta, Hideaki Kato, Yoshio Yamamoto, Yoshio Yamamoto
- 2016
Scientists at the Max Planck Institute for Brain Research in Frankfurt am Main studied gene expression in the neurons of the cortex of turtles and lizards, and found unexpected similarities and ...
Jun 2, 2023 · The olfactory organ of turtles consists of an upper chamber epithelium (UCE) with associated glands, and a lower chamber epithelium (LCE) devoid of glands. The UCE and LCE are referred to as the air-nose and the water-nose, respectively, because the UCE is thought to detect airborne odorants, while the LCE detects waterborne odorants. However, it is not clear how the two are used in the ...
Jul 29, 2020 · The OE contains ciliated olfactory receptor neurons (ORNs), while the VNO contains microvillous ORNs. The ORNs in the OE express odorant receptors (ORs), while those in the VNO express type 1 and type 2 vomeronasal receptors (V1Rs and V2Rs). In turtles, the olfactory organ consists of the upper (UCE) and lower chamber epithelia (LCE).
- Sayed Sharif Abdali, Sayed Sharif Abdali, Shoko Nakamuta, Yoshio Yamamoto, Yoshio Yamamoto, Nobuaki ...
- 10.1292/jvms.20-0207
- 2020
- J Vet Med Sci. 2020 Aug; 82(8): 1068-1079.
May 17, 2021 · In particular, the proportion of functional olfactory receptor genes was shown to be lower in aquatic turtles than in terrestrial species, suggesting that volatile olfactory cues are less ...
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In turtles, VGLUT2 mRNA was found to be expressed in the neurons of the SGP layer (Hussan, 2016; Hussan et al., 2017; Sarkar and Atoji, 2018), and GluR immunoreactivity was found in their projection targets ISMC and ISPC (Keifer and Carr, 2000). Thus, the turtle isthmo–tectal pathway is suggested to be glutamatergic .
