Feeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging

Abstract The radula is the food gathering and processing structure and one important autapomorphy of the Mollusca. It is composed of a chitinous membrane with small, embedded teeth representing the interface between the organism and its ingesta. In the past, various approaches aimed at connecting th...

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Autores principales:	Wencke Krings, Christine Hempel, Lisa Siemers, Marco T. Neiber, Stanislav N. Gorb
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/53ad45f628d9429687f2a96aaaa746a1
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spelling	oai:doaj.org-article:53ad45f628d9429687f2a96aaaa746a12021-12-02T14:49:43ZFeeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging10.1038/s41598-021-88953-72045-2322https://doaj.org/article/53ad45f628d9429687f2a96aaaa746a12021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88953-7https://doaj.org/toc/2045-2322Abstract The radula is the food gathering and processing structure and one important autapomorphy of the Mollusca. It is composed of a chitinous membrane with small, embedded teeth representing the interface between the organism and its ingesta. In the past, various approaches aimed at connecting the tooth morphologies, which can be highly distinct even within single radulae, to their functionality. However, conclusions from the literature were mainly drawn from analyzing mounted radulae, even though the configuration of the radula during foraging is not necessarily the same as in mounted specimens. Thus, the truly interacting radular parts and teeth, including 3D architecture of this complex structure during foraging were not previously determined. Here we present an experimental approach on individuals of Vittina turrita (Neritidae, Gastropoda), which were fed with algae paste attached to different sandpaper types. By comparing these radulae to radulae from control group, sandpaper-induced tooth wear patterns were identified and both area and volume loss could be quantified. In addition to the exact contact area of each tooth, conclusions about the 3D position of teeth and radular bending during feeding motion could be drawn. Furthermore, hypotheses about specific tooth functions could be put forward. These feeding experiments under controlled conditions were introduced for stylommatophoran gastropods with isodont radulae and are now applied to heterodont and complex radulae, which may provide a good basis for future studies on radula functional morphology.Wencke KringsChristine HempelLisa SiemersMarco T. NeiberStanislav N. GorbNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-18 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wencke Krings Christine Hempel Lisa Siemers Marco T. Neiber Stanislav N. Gorb Feeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging
description	Abstract The radula is the food gathering and processing structure and one important autapomorphy of the Mollusca. It is composed of a chitinous membrane with small, embedded teeth representing the interface between the organism and its ingesta. In the past, various approaches aimed at connecting the tooth morphologies, which can be highly distinct even within single radulae, to their functionality. However, conclusions from the literature were mainly drawn from analyzing mounted radulae, even though the configuration of the radula during foraging is not necessarily the same as in mounted specimens. Thus, the truly interacting radular parts and teeth, including 3D architecture of this complex structure during foraging were not previously determined. Here we present an experimental approach on individuals of Vittina turrita (Neritidae, Gastropoda), which were fed with algae paste attached to different sandpaper types. By comparing these radulae to radulae from control group, sandpaper-induced tooth wear patterns were identified and both area and volume loss could be quantified. In addition to the exact contact area of each tooth, conclusions about the 3D position of teeth and radular bending during feeding motion could be drawn. Furthermore, hypotheses about specific tooth functions could be put forward. These feeding experiments under controlled conditions were introduced for stylommatophoran gastropods with isodont radulae and are now applied to heterodont and complex radulae, which may provide a good basis for future studies on radula functional morphology.
format	article
author	Wencke Krings Christine Hempel Lisa Siemers Marco T. Neiber Stanislav N. Gorb
author_facet	Wencke Krings Christine Hempel Lisa Siemers Marco T. Neiber Stanislav N. Gorb
author_sort	Wencke Krings
title	Feeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging
title_short	Feeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging
title_full	Feeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging
title_fullStr	Feeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging
title_full_unstemmed	Feeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging
title_sort	feeding experiments on vittina turrita (mollusca, gastropoda, neritidae) reveal tooth contact areas and bent radular shape during foraging
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/53ad45f628d9429687f2a96aaaa746a1
work_keys_str_mv	AT wenckekrings feedingexperimentsonvittinaturritamolluscagastropodaneritidaerevealtoothcontactareasandbentradularshapeduringforaging AT christinehempel feedingexperimentsonvittinaturritamolluscagastropodaneritidaerevealtoothcontactareasandbentradularshapeduringforaging AT lisasiemers feedingexperimentsonvittinaturritamolluscagastropodaneritidaerevealtoothcontactareasandbentradularshapeduringforaging AT marcotneiber feedingexperimentsonvittinaturritamolluscagastropodaneritidaerevealtoothcontactareasandbentradularshapeduringforaging AT stanislavngorb feedingexperimentsonvittinaturritamolluscagastropodaneritidaerevealtoothcontactareasandbentradularshapeduringforaging
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Feeding experiments on Vittina turrita (Mollusca, Gastropoda, Neritidae) reveal tooth contact areas and bent radular shape during foraging

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