Change search
ReferencesLink to record
Permanent link

Direct link
Experimentally Induced Repeated Anhydrobiosis in the Eutardigrade Richtersius coronifer
Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap. Kristianstad University, Research environment Man & Biosphere Health (MABH). Charles University, Prague.
Kristianstad University, Research environment Man & Biosphere Health (MABH). Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.ORCID iD: 0000-0002-1732-0372
2016 (Swedish)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, no 11Article in journal (Refereed) Published
Abstract [en]

Tardigrades represent one of the main animal groups with anhydrobiotic capacity at any stage of their life cycle. The ability of tardigrades to survive repeated cycles of anhydrobiosis has rarely been studied but is of interest to understand the factors constraining anhydrobiotic survival. The main objective of this study was to investigate the patterns of survival of the eutardigrade Richtersius coronifer under repeated cycles of desiccation, and the potential effect of repeated desiccation on size, shape and number of storage cells. We also analyzed potential change in body size, gut content and frequency of mitotic storage cells. Specimens were kept under non-cultured conditions and desiccated under controlled relative humidity. After each desiccation cycle 10 specimens were selected for analysis of morphometric characteristics and mitosis. The study demonstrates that tardigrades may survive up to 6 repeated desiccations, with declining survival rates with increased numberof desiccations. We found a significantly higher proportion of animals that were unable to contract properly into a tun stage during the desiccation process at the 5th and 6th desiccations. Also total number of storage cells declined at the 5th and 6th desiccations, while no effect on storage cell size was observed. The frequency of mitotic storage cells tended to decline with higher number of desiccation cycles. Our study shows that the number of consecutive cycles of anhydrobiosis that R. coronifer may undergo is limited, with increased inability for tun formation and energetic constraints as possible causal factors.

Place, publisher, year, edition, pages
2016. Vol. 11, no 11
Keyword [en]
Tardigrades, desiccation tolerance, Richtersius coronifer
National Category
Zoology
Identifiers
URN: urn:nbn:se:hkr:diva-16233DOI: 10.1371/journal.pone.0164062PubMedID: 27828978OAI: oai:DiVA.org:hkr-16233DiVA: diva2:1046843
Available from: 2016-11-15 Created: 2016-11-15 Last updated: 2016-11-25Bibliographically approved

Open Access in DiVA

fulltext(3271 kB)20 downloads
File information
File name FULLTEXT01.pdfFile size 3271 kBChecksum SHA-512
b5d99c691727acfd28a7ce5aa2add26313b2a382f9331f00be6d2a56356e8217071dd2762c60e821343a19d106ab1d6d504014747c521eef5b6a1cc0d10d3b6a
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Jönsson, K. Ingemar
By organisation
Avdelningen för NaturvetenskapResearch environment Man & Biosphere Health (MABH)
In the same journal
PLoS ONE
Zoology

Search outside of DiVA

GoogleGoogle Scholar
Total: 20 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 49 hits
ReferencesLink to record
Permanent link

Direct link