Developing Inside a Layer of Germs—A Potential Role for Multiciliated Surface Cells in Vertebrate Embryos

This paper reviews current research on the microbial life that surrounds vertebrate embryos. Several clades are believed to develop inside sterile—or near-sterile—embryonic microhabitats, while others thrive within a veritable zoo of microbial life. The occurrence of embryo-associated microbes in so...

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Main Author: Ryan Kerney
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/13/11/527
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author Ryan Kerney
author_facet Ryan Kerney
author_sort Ryan Kerney
collection DOAJ
description This paper reviews current research on the microbial life that surrounds vertebrate embryos. Several clades are believed to develop inside sterile—or near-sterile—embryonic microhabitats, while others thrive within a veritable zoo of microbial life. The occurrence of embryo-associated microbes in some groups, but not others, is an under-appreciated transition (possibly transitions) in vertebrate evolution. A lack of comparable studies makes it currently impossible to correlate embryo-associated microbiomes with other aspects of vertebrate evolution. However, there are embryonic features that should instruct a more targeted survey. This paper concludes with a hypothesis for the role of multiciliated surface cells in amphibian and some fish embryos, which may contribute to managing embryo-associated microbial consortia. These cells are known to exist in some species that harbor <i>in ovo</i> microbes or have relatively porous egg capsules, although most have not been assayed for embryo-associated microbiota. Whether the currents generated within these extraembryonic microhabitats contribute to culturing consistent microbial communities remains to be seen.
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spelling doaj.art-77d7ad3b07c8458abdd80201e0c8abee2023-11-22T23:03:38ZengMDPI AGDiversity1424-28182021-10-01131152710.3390/d13110527Developing Inside a Layer of Germs—A Potential Role for Multiciliated Surface Cells in Vertebrate EmbryosRyan Kerney0Department of Biology and Biochemistry & Molecular Biology, Gettysburg College, Gettysburg, PA 17325, USAThis paper reviews current research on the microbial life that surrounds vertebrate embryos. Several clades are believed to develop inside sterile—or near-sterile—embryonic microhabitats, while others thrive within a veritable zoo of microbial life. The occurrence of embryo-associated microbes in some groups, but not others, is an under-appreciated transition (possibly transitions) in vertebrate evolution. A lack of comparable studies makes it currently impossible to correlate embryo-associated microbiomes with other aspects of vertebrate evolution. However, there are embryonic features that should instruct a more targeted survey. This paper concludes with a hypothesis for the role of multiciliated surface cells in amphibian and some fish embryos, which may contribute to managing embryo-associated microbial consortia. These cells are known to exist in some species that harbor <i>in ovo</i> microbes or have relatively porous egg capsules, although most have not been assayed for embryo-associated microbiota. Whether the currents generated within these extraembryonic microhabitats contribute to culturing consistent microbial communities remains to be seen.https://www.mdpi.com/1424-2818/13/11/527vertebrateembryomicrobiomemulticiliated cells
spellingShingle Ryan Kerney
Developing Inside a Layer of Germs—A Potential Role for Multiciliated Surface Cells in Vertebrate Embryos
Diversity
vertebrate
embryo
microbiome
multiciliated cells
title Developing Inside a Layer of Germs—A Potential Role for Multiciliated Surface Cells in Vertebrate Embryos
title_full Developing Inside a Layer of Germs—A Potential Role for Multiciliated Surface Cells in Vertebrate Embryos
title_fullStr Developing Inside a Layer of Germs—A Potential Role for Multiciliated Surface Cells in Vertebrate Embryos
title_full_unstemmed Developing Inside a Layer of Germs—A Potential Role for Multiciliated Surface Cells in Vertebrate Embryos
title_short Developing Inside a Layer of Germs—A Potential Role for Multiciliated Surface Cells in Vertebrate Embryos
title_sort developing inside a layer of germs a potential role for multiciliated surface cells in vertebrate embryos
topic vertebrate
embryo
microbiome
multiciliated cells
url https://www.mdpi.com/1424-2818/13/11/527
work_keys_str_mv AT ryankerney developinginsidealayerofgermsapotentialroleformulticiliatedsurfacecellsinvertebrateembryos