Structural and developmental disparity in the tentacles of the moon jellyfish Aurelia sp.1

Gold, David A., Nakanishi, Nagayasu, Hensley, Nicholai M., Cozzolino, Kira, Tabatabaee, Mariam, Martin, Michelle, Hartenstein, Volker and Jacobs, David K. (2015) Structural and developmental disparity in the tentacles of the moon jellyfish Aurelia sp.1. PLoS ONE, 10 8: . doi:10.1371/journal.pone.0134741


Author Gold, David A.
Nakanishi, Nagayasu
Hensley, Nicholai M.
Cozzolino, Kira
Tabatabaee, Mariam
Martin, Michelle
Hartenstein, Volker
Jacobs, David K.
Title Structural and developmental disparity in the tentacles of the moon jellyfish Aurelia sp.1
Journal name PLoS ONE   Check publisher's open access policy
ISSN 1932-6203
Publication date 2015-08-04
Year available 2015
Sub-type Article (original research)
DOI 10.1371/journal.pone.0134741
Open Access Status DOI
Volume 10
Issue 8
Total pages 12
Place of publication San Francisco, United States
Publisher Public Library of Science
Language eng
Subject 1300 Biochemistry, Genetics and Molecular Biology
1100 Agricultural and Biological Sciences
Abstract Tentacles armed with stinging cells (cnidocytes) are a defining trait of the cnidarians, a phylum that includes sea anemones, corals, jellyfish, and hydras. While cnidarian tentacles are generally characterized as structures evolved for feeding and defense, significant variation exists between the tentacles of different species, and within the same species across different life stages and/or body regions. Such diversity suggests cryptic distinctions exist in tentacle function. In this paper, we use confocal and transmission electron microscopy to contrast the structure and development of tentacles in the moon jellyfish, Aurelia species 1. We show that polyp oral tentacles and medusa marginal tentacles display markedly different cellular and muscular architecture, as well as distinct patterns of cellular proliferation during growth. Many structural differences between these tentacle types may reflect biomechanical solutions to different feeding strategies, although further work would be required for a precise mechanistic understanding. However, differences in cell proliferation dynamics suggests that the two tentacle forms lack a conserved mechanism of development, challenging the textbook-notion that cnidarian tentacles can be homologized into a conserved bauplan.
Formatted abstract
Tentacles armed with stinging cells (cnidocytes) are a defining trait of the cnidarians, a phylum that includes sea anemones, corals, jellyfish, and hydras. While cnidarian tentacles are generally characterized as structures evolved for feeding and defense, significant variation exists between the tentacles of different species, and within the same species across different life stages and/or body regions. Such diversity suggests cryptic distinctions exist in tentacle function. In this paper, we use confocal and transmission electron microscopy to contrast the structure and development of tentacles in the moon jellyfish, Aurelia species 1. We show that polyp oral tentacles and medusa marginal tentacles display markedly different cellular and muscular architecture, as well as distinct patterns of cellular proliferation during growth. Many structural differences between these tentacle types may reflect biomechanical solutions to different feeding strategies, although further work would be required for a precise mechanistic understanding. However, differences in cell proliferation dynamics suggests that the two tentacle forms lack a conserved mechanism of development, challenging the textbook-notion that cnidarian tentacles can be homologized into a conserved bauplan.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
School of Biological Sciences Publications
 
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