Macro‐ and micromorphological remodeling of olfactory organs throughout the ontogeny of the fire salamander Salamandra salamandra (Linnaeus, 1758)

Abstract

This article studies the morphological remodeling of olfactory organs in the fire salamander (Salamandridae, Caudata), from the larval stages of ontogeny to the adult and throughout the course of the annual cycle. The fire salamander exhibits adaptations to the aquatic environment during premetamorphic life and terrestrial adaptations after metamorphosis. During adulthood, the annual activ

Ultrastructural and immunocytochemical studies on the olfactory receptor neurons in the Ichthyosaura alpestris

“…Hansen et al, 1998;Stuelpnagel & Reiss, 2005;Różański & Żuwała, 2020). The presence of ciliated supporting cells and secretory supporting cells in the VNO and only secretory supporting cells in the MOC also reflect the literature concerning representatives of the order Caudata (Jones et al, 1994;Hansen et al, 1998;Stuelpnagel & Reiss, 2005;Różański & Żuwała, 2019Różański & Żuwała, , 2020.…”

“…All of these species are either aquatic or semiaquatic (Wells, 2007). A lack of strips was observed in the OE of the fire salamander Salamandra salamandra (Linnaeus, 1758;Różański & Żuwała, 2019Różański & Żuwała, , 2020, which is exclusively terrestrial during the post-metamorphic stages of ontogeny (Wells, 2007). Perhaps, as suggested previously (Różański & Żuwała, 2019), the occurrence of the ORN strips in the OE of amphibians may be an adaptation to the aquatic habitat, and they could be used for detection of only airborne odorants in the terrestrial environment and detection of both airborne and waterborne odorants in water (aquatic and semiaquatic species).…”

Structural and ultrastructural studies on the developing vomeronasal sensory epithelium in the grass snake Natrix natrix (Squamata: Colubroidea)

“…Also, there are no data describing ultrastructural changes occurring during squamate VSE differentiation (Holtzman & Halpern, 1991). The ultrastructure of the embryonic VSE in squamates has never been investigated, in contrast to mammalian embryos (Garrosa et al, 1998; Mendoza & Szabó, 1988; Salazar et al, 2003) and amphibian larvae (e.g., Różański & Żuwała, 2020; Taniguchi et al, 1996). In adult snakes, the hypertrophied VSE may provide great resolution of ultrastructural changes in neuron morphology located at various epithelial levels (Wang & Halpern, 1980a).…”