Digitala Vetenskapliga Arkivet

Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Effects of ionizing radiation on embryos of the tardigrade Milnesium cf. tardigradum at different stages of development
Instituto de Genética Humana, Pontificia Universidad Javeriana, Bogotá.
Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man and Biosphere Health (MABH).ORCID-id: 0000-0002-1732-0372
Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University.
Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University.
Vise andre og tillknytning
2013 (engelsk)Inngår i: PLOS ONE, E-ISSN 1932-6203, Vol. 8, nr 9, s. e72098-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Tardigrades represent one of the most desiccation and radiation tolerant animals on Earth, and several studies havedocumented their tolerance in the adult stage. Studies on tolerance during embryological stages are rare, but differentialeffects of desiccation and freezing on different developmental stages have been reported, as well as dose-dependent effectof gamma irradiation on tardigrade embryos. Here, we report a study evaluating the tolerance of eggs from theeutardigrade Milnesium cf. tardigradum to three doses of gamma radiation (50, 200 and 500 Gy) at the early, middle, andlate stage of development. We found that embryos of the middle and late developmental stages were tolerant to all doses,while eggs in the early developmental stage were tolerant only to a dose of 50 Gy, and showed a declining survival withhigher dose. We also observed a delay in development of irradiated eggs, suggesting that periods of DNA repair might havetaken place after irradiation induced damage. The delay was independent of dose for eggs irradiated in the middle and latestage, possibly indicating a fixed developmental schedule for repair after induced damage. These results show that thetolerance to radiation in tardigrade eggs changes in the course of their development. The mechanisms behind this patternare unknown, but may relate to changes in mitotic activities over the embryogenesis and/or to activation of responsemechanisms to damaged DNA in the course of development.

sted, utgiver, år, opplag, sider
2013. Vol. 8, nr 9, s. e72098-
Emneord [en]
tardigrades, radiation tolerance, embryology
HSV kategori
Identifikatorer
URN: urn:nbn:se:hkr:diva-11082DOI: 10.1371/journal.pone.0072098ISI: 000324856500012OAI: oai:DiVA.org:hkr-11082DiVA, id: diva2:646536
Tilgjengelig fra: 2013-09-09 Laget: 2013-09-09 Sist oppdatert: 2021-06-14bibliografisk kontrollert

Open Access i DiVA

fulltext(308 kB)602 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 308 kBChecksum SHA-512
3feb781f2af30b3783c0add5376be80946069c9c7aa3cb36ec0879103ac21f392544521b0b867d1b7f0a025d6ddd5e5c8ac7a4a880ce936aa860fb1087b38565
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekst

Søk i DiVA

Av forfatter/redaktør
Jönsson, K. Ingemar
Av organisasjonen
I samme tidsskrift
PLOS ONE

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 602 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 527 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf