An Animal Able To Tolerate D2 O

© 2020 Wiley-VCH GmbH..

It is possible to gain a deeper insight into the role of water in biology by using physicochemical variant molecules, such as deuterium oxide (D2 O); however, D2 O is toxic to multicellular organisms in high concentrations. By using a unique desiccation-rehydration process, we demonstrate that the anhydrobiotic nematode Panagrolaimus superbus is able to tolerate and proliferate in 99 % D2 O. Moreover, we analysed P. superbus' water-channel protein (aquaporin; AQP), which is associated with dehydration/rehydration, by comparing its primary structure and modelling its tertiary structure in silico. Our data evidence that P. superbus' AQP is an aquaglyceroporin, a class of water channel known to display a wider pore; this helps to explain the rapid and successful organismal influx of D2 O into this species. This is the first demonstration of an animal able to withstand high D2 O levels, thus paving a way for the investigation of the effects D2 O on higher levels of biological organization.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:22

Enthalten in:

Chembiochem : a European journal of chemical biology - 22(2021), 6 vom: 16. März, Seite 988-991

Sprache:

Englisch

Beteiligte Personen:

de Carli, Gabriel José [VerfasserIn]
Contiliani, Danyel Fernandes [VerfasserIn]
Giuliatti, Silvana [VerfasserIn]
Pereira, Tiago Campos [VerfasserIn]

Links:

Volltext

Themen:

Anhydrobiosis
Aquaporin
Aquaporins
Desiccation tolerance
Deuterium Oxide
Deuterium oxide
Helminth Proteins
J65BV539M3
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 19.11.2021

Date Revised 19.11.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/cbic.202000642

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM316943037