Unravelling the secret of the resistance of desert strains of Chroococcidiopsis to desiccation and radiation

Chroococcidiopsis is a unicellular cyanobacterial genus that is growing in extreme dry conditions, either in low or high temperatures. At the lower end of the spectrum, they live as cryptoendoliths in rocks of the Mc Murdo Dry Valleys in Antarctica where they were discovered by Imre Friedmann, while...

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Bibliographic Details
Main Authors: Billi, Daniela, Fagliarone, Verseux, Cyprien, Mosca, Claudia, Baqué, Mickael, Wilmotte, Annick
Other Authors: CIP - Centre d'Ingénierie des Protéines - ULiège
Format: Conference Object
Language:English
Published: SCAR 2017
Subjects:
Chroococcidiopsis
radiations
resistance
deserts
dessication
oxidative damage
extremophiles
Life sciences
Environmental sciences & ecology
Microbiology
Sciences du vivant
Sciences de l’environnement & écologie
Microbiologie
Antarc*
Antarctica
Online Access:https://orbi.uliege.be/handle/2268/213020
https://orbi.uliege.be/bitstream/2268/213020/1/S11posterWilmotteChroococcidiopsisextremophily.doc
Description
Summary:Chroococcidiopsis is a unicellular cyanobacterial genus that is growing in extreme dry conditions, either in low or high temperatures. At the lower end of the spectrum, they live as cryptoendoliths in rocks of the Mc Murdo Dry Valleys in Antarctica where they were discovered by Imre Friedmann, while at the higher end, they grow as hypoliths/endoliths in hot deserts, e.g. Negev, Gobi, Atacama. The capacity of desert strains of Chroococcidiopsis to stabilize their sub-cellular organization is so efficient that, when dried, they can cope with simulated space and Martian conditionsas well as with high doses of ionizing and UV radiations . Chroococcidiopsis

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