Article (Scientific journals)
Avoidance of protein oxidation correlates with the desiccation and radiation resistance of hot and cold desert strains of the cyanobacterium Chroococcidiopsis
Fagliarone, Claudia; Mosca, Claudia; Ubaldi, Ilaria et al.
2017In Extremophiles: Life Under Extreme Conditions, 21, p. 981-991
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Keywords :
dessication; Chroococidiopsis; cyanobacteria; resistance; oxydative stress; radiation
Abstract :
[en] In order to investigate the relationship between desiccation and the extent of protein oxidation in desert strains of Chroococcidiopsis a selection of 10 isolates from hot and cold deserts and the terrestrial cyanobacterium Chroococcidiopsis thermalis sp. PCC 7203, were exposed to desiccation (air-drying) and analysed for survival. Strain CCMEE 029 from the Negev desert and the aquatic cyanobacterium Synechocystis sp. PCC 6803 were further investigated for protein oxidation after desiccation (drying over silica gel), treatment with H2O2 up to 1M and exposure to γ-rays up to 25 kGy. Then a selection of desert strains of Chroococcidiopsis with different survival rates after prolonged desiccation, as well as Synechocystis sp. PCC 6803 and Chroococcidiopsis thermalis sp. PCC 7203, were analysed for protein oxidation after treatment with 10 mM and 100 mM of H2O2. Results suggest that in the investigated strains a tight correlation occurs between desiccation and radiation tolerance and avoidance of protein oxidation
Research center :
CIP - Centre d'Ingénierie des Protéines - ULiège
Disciplines :
Biochemistry, biophysics & molecular biology
Microbiology
Author, co-author :
Fagliarone, Claudia
Mosca, Claudia
Ubaldi, Ilaria
Verseux, Cyprien
Wilmotte, Annick  ;  Université de Liège > Département des sciences de la vie > Physiologie et génétique bactériennes
Billi, Daniela
Baqué, Mickael
Language :
English
Title :
Avoidance of protein oxidation correlates with the desiccation and radiation resistance of hot and cold desert strains of the cyanobacterium Chroococcidiopsis
Publication date :
November 2017
Journal title :
Extremophiles: Life Under Extreme Conditions
ISSN :
1431-0651
eISSN :
1433-4909
Publisher :
Springer Science & Business Media B.V., Tokyo, Japan
Volume :
21
Pages :
981-991
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Italian Space Agency, National Antarctic Research Program (PNRA16/00101; PNRA2013/AZ1.17).
Available on ORBi :
since 23 August 2017

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