ArticlePloS one2018
A comparative ultrastructure study of storage cells in the eutardigrade Richtersius coronifer in the hydrated state and after desiccation and heating stress.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Evidence that local viscosity and NOX-dependent ROS increases render the tardigrade H. exemplaris resilient to extreme physical force.bioRxiv : the preprint server for biology · 2026Article
- Life on the dry side: a roadmap to understanding desiccation tolerance and accelerating translational applications.Nature communications · 2025Review
- Metabolite phosphatase from anhydrobiotic tardigrades.The FEBS journal · 2024Article
- Elevated external temperature affects cell ultrastructure and heat shock proteins (HSPs) in Paramacrobiotus experimentalis Kaczmarek, Mioduchowska, Poprawa, & Roszkowska, 2020.Scientific reports · 2024Article
- The major inducible small heat shock protein HSP20-3 in the tardigrade Ramazzottius varieornatus forms filament-like structures and is an active chaperone.Cell stress & chaperones · 2024Article
- Article
- A multiscale approach reveals elaborate circulatory system and intermittent heartbeat in velvet worms (Onychophora).Communications biology · 2023Article
- How long can tardigrades survive in the anhydrobiotic state? A search for tardigrade anhydrobiosis patterns.PloS one · 2023Article
- A pan-metazoan concept for adult stem cells: the wobbling Penrose landscape.Biological reviews of the Cambridge Philosophical Society · 2022Article
- Verification of Hypsibius exemplaris Gąsiorek et al., 2018 (Eutardigrada; Hypsibiidae) application in anhydrobiosis research.PloS one · 2022Article
- Tolerance to Anhydrobiotic Conditions Among Two Coexisting Tardigrade Species Differing in Life Strategies.Zoological studies · 2021Article
- Tardigrada: An Emerging Animal Model to Study the Endoplasmic Reticulum Stress Response to Environmental Extremes.Progress in molecular and subcellular biology · 2021Article
- Ultrastructural analysis of the dehydrated tardigrade Hypsibius exemplaris unveils an anhydrobiotic-specific architecture.Scientific reports · 2020Article
- A new redescription ofZoological letters · 2020Article
- X-ray imaging of a water bear offers a new look at tardigrade internal anatomy.Zoological letters · 2019Article
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Authors and funding
5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Tardigrades represent an invertebrate phylum with no circulatory or respiratory system. Their body cavity is filled with free storage cells of the coelomocyte-type, which are responsible for important physiological functions. We report a study comparing the ultrastructure of storage cells in anhydrobiotic and hydrated specimens of the eutardigrade Richtersius coronifer. We also analysed the effect of temperature stress on storage cell structure. Firstly, we verified two types of ultrastructurally different storage cells, which differ in cellular organelle complexity, amount and content of reserve material and connection to oogenetic stage. Type I cells were found to differ ultrastructurally depending on the oogenetic stage of the animal. The main function of these cells is energy storage. Storage cells of Type I were also observed in the single male that was found among the analysed specimens. The second cell type, Type II, found only in females, represents young undifferentiated cells, possibly stem cells. The two types of cells also differ with respect to the presence of nucleolar vacuoles, which are related to oogenetic stages and to changes in nucleolic activity during oogenesis. Secondly, this study revealed that storage cells are not ultrastructurally affected by six months of desiccation or by heating following this desiccation period. However, heating of the desiccated animals (tuns) tended to reduce animal survival, indicating that long-term desiccation makes these animals more vulnerable to heat stress. We confirmed the degradative pathways during the rehydration process after desiccation and heat stress. Our study is the first to document two ultrastructurally different types of storage cells in tardigrades and reveals new perspectives for further studies of tardigrade storage cells.
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