Graviceptor development in jellyfish ephyrae in space and on earth

Spangenberg, Dorothy Breslin; Jernigan, T. E.; Philput, Christine; Lowe, Brian

doi:10.1016/0273-1177(94)90418-9

Cited by 10 publications

(4 citation statements)

References 7 publications

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“…Gravity sensing has also been developed in hydrozoan polyps (Ewer, 1946;Campbell, 1972;Hanson, 2023). Frontiers in Cell and Developmental Biology frontiersin.org Scypho-medusae have been used in space research with results reminiscent of bone loss during long space missions (Spangenberg et al, 1994;Spangenberg et al, 1996). Long-term exposure to microgravity increased human bone resorption and decreased bone formation, reducing bone mineral density by approximately 2% after 1 month (Lang et al, 2004).…”

Section: Gravity Sensory Organs In Eumetazoansmentioning

confidence: 99%

“…Long-term exposure to microgravity increased human bone resorption and decreased bone formation, reducing bone mineral density by approximately 2% after 1 month (Lang et al, 2004). Under similar microgravity conditions, experiments on Aurelia aurita ephyrae showed statolith loss from rhopalia in the space-maintained ephyrae compared to their controls ( Spangenberg et al, 1994 ).…”

Section: Introductionmentioning

confidence: 99%

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Parallel evolution of gravity sensing

Romanova,

Moroz

2024

Front. Cell Dev. Biol.

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Omnipresent gravity affects all living organisms; it was a vital factor in the past and the current bottleneck for future space exploration. However, little is known about the evolution of gravity sensing and the comparative biology of gravity reception. Here, by tracing the parallel evolution of gravity sensing, we encounter situations when assemblies of homologous modules result in the emergence of non-homologous structures with similar systemic properties. This is a perfect example to study homoplasy at all levels of biological organization. Apart from numerous practical implementations for bioengineering and astrobiology, the diversity of gravity signaling presents unique reference paradigms to understand hierarchical homology transitions to the convergent evolution of integrative systems. Second, by comparing gravisensory systems in major superclades of basal metazoans (ctenophores, sponges, placozoans, cnidarians, and bilaterians), we illuminate parallel evolution and alternative solutions implemented by basal metazoans toward spatial orientation, focusing on gravitational sensitivity and locomotory integrative systems.

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Section: Gravity Sensory Organs In Eumetazoansmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Parallel evolution of gravity sensing

Romanova,

Moroz

2024

Front. Cell Dev. Biol.

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“…Several bioactive proteins have been isolated from jellyfish with hemolytic, cytotoxic, cardiovascular, and neurotoxic activity (Domenico et al, 2019;Merquiol et al, 2019). In addition, jellyfish have been used to develop new research tools such as Green fluorescence protein (GFP), biocompatible collagen for 2D and 3D cell cultures, or as model systems to study mobility and microgravity (Spangenberg et al, 1994;Purcell, 2009;Najem et al, 2012;Pugliano et al, 2017;Paradiso et al, 2019;Coppola et al, 2020;Mearns-Spragg et al, 2020). Due to their ability to internalize plastic debris, jellyfish have been suggested as a potential invertebrate bioindicators for plastic pollution in pelagic waters (Macali et al, 2018;Iliff et al, 2020;Macali and Bergami, 2020).…”

Section: Introductionmentioning

confidence: 99%

Sequestration of Polystyrene Microplastics by Jellyfish Mucus

et al. 2021

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The worldwide microplastics pollution is a serious environmental and health problem that is currently not effectively mitigated. In this work we tested jellyfish mucus as a new bioflocculent material capable of sequestration of polystyrene microplastics in aqueous environments. Mucus material was collected from different jellyfish species and was used to trap fluorescently tagged polystyrene microspheres. The efficiency of removal was tested using varying concentrations of microplastics and mucus. The interaction between the microplastics and mucus was determined by viscosity measurements and confocal laser scanning microscopy. Different mucus preparation methods were also tested: freshly prepared, mechanically sheared, freeze-thawed, freeze-dried, and hydrolyzed mucus. The results demonstrate that jellyfish mucus can efficiently sequester polystyrene microplastics particles from the suspension. The fraction of the removed microplastics was highest with freshly prepared mucus and decreased with freeze-thawing and freeze-drying. The mucus ability to sequester microplastics was completely lost in the hydrolyzed mucus. The results imply that the intact jellyfish mucus has the potential to be used as a biopolymer capable of removing microplastics material.

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“…Durch die Auslenkung eines ein-bis mehrzelligen Pendels, das den Statolithen umgibt, werden Cilien von Kragensinneszellen reizwirksam abgebogen und so Gravitation rezipiert. Die unterschiedlichen Medusen-und Quallenklassen besitzen in ihrem Schirmrand 4-300 Statorezeptoren und zeigen Gravitaxis (Spangenberg et al 1994(Spangenberg et al , 1996. (Dijkgraaf 1956;Fraser & Sandeman 1975;Sandeman & Okajima 1972, 1973Schöne & Schöne 1967;Schöne & Steinbrecht 1968;Stein 1975).…”

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Steuerung der Beinmotorik von Grillen durch ein Paar gravizeptiver Interneurone

Funke¹

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Graviceptor development in jellyfish ephyrae in space and on earth

Cited by 10 publications

References 7 publications

Parallel evolution of gravity sensing

Parallel evolution of gravity sensing

Sequestration of Polystyrene Microplastics by Jellyfish Mucus

Steuerung der Beinmotorik von Grillen durch ein Paar gravizeptiver Interneurone

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