Olfaction across the water–air interface in anuran amphibians

Extant anuran amphibians originate from an evolutionary intersection eventually leading to fully terrestrial tetrapods. In many ways, they have to deal with exposure to both terrestrial and aquatic environments: (i) phylogenetically, as derivatives of the first tetrapod group that conquered the terr...

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Vydáno v:	Cell and tissue research Ročník 383; číslo 1; s. 301 - 325
Hlavní autoři:	Weiss, Lukas, Manzini, Ivan, Hassenklöver, Thomas
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Berlin/Heidelberg Springer Berlin Heidelberg 01.01.2021 Springer Springer Nature B.V
Témata:	Adaptation air Air - analysis Amphibians Animals Anura Biomedical and Life Sciences Biomedicine Evolution Frogs habitats Human Genetics Life cycles liquid-air interface Molecular Medicine Olfaction Olfactory bulb Olfactory organs Olfactory system Ontogeny Phylogeny Proteomics Receptors, Odorant - physiology Reptiles & amphibians Review Smell Water - chemistry Anura Olfactory cortex Higher centers Frog Nose Olfactory bulb Olfactory subsystems Olfactory organ Transduction Olfactory epithelium Vomeronasal organ Odor mapping
ISSN:	0302-766X, 1432-0878, 1432-0878
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Popis
Shrnutí:	Extant anuran amphibians originate from an evolutionary intersection eventually leading to fully terrestrial tetrapods. In many ways, they have to deal with exposure to both terrestrial and aquatic environments: (i) phylogenetically, as derivatives of the first tetrapod group that conquered the terrestrial environment in evolution; (ii) ontogenetically, with a development that includes aquatic and terrestrial stages connected via metamorphic remodeling; and (iii) individually, with common changes in habitat during the life cycle. Our knowledge about the structural organization and function of the amphibian olfactory system and its relevance still lags behind findings on mammals. It is a formidable challenge to reveal underlying general principles of circuity-related, cellular, and molecular properties that are beneficial for an optimized sense of smell in water and air. Recent findings in structural organization coupled with behavioral observations could help to understand the importance of the sense of smell in this evolutionarily important animal group. We describe the structure of the peripheral olfactory organ, the olfactory bulb, and higher olfactory centers on a tissue, cellular, and molecular levels. Differences and similarities between the olfactory systems of anurans and other vertebrates are reviewed. Special emphasis lies on adaptations that are connected to the distinct demands of olfaction in water and air environment. These particular adaptations are discussed in light of evolutionary trends, ontogenetic development, and ecological demands.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Review-3 content type line 23
ISSN:	0302-766X 1432-0878 1432-0878
DOI:	10.1007/s00441-020-03377-5