NDLI: Coccomyxa actinabiotis sp. nov. (Trebouxiophyceae, Chlorophyta), a new green microalga living in the spent fuel cooling pool of a nuclear reactor.

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Coccomyxa actinabiotis sp. nov. (Trebouxiophyceae, Chlorophyta), a new green microalga living in the spent fuel cooling pool of a nuclear reactor.

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Coccomyxa actinabiotis sp. nov. (Trebouxiophyceae, Chlorophyta), a new green microalga living in the spent fuel cooling pool of a nuclear reactor.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Rivasseau, Corinne Farhi, Emmanuel Compagnon, Estelle de Gouvion Saint Cyr, Diane Van Lis, Robert Falconet, Denis Kuntz, Marcel Atteia, Ariane Couté, Alain
Description	Country affiliation: France Author Affiliation: Rivasseau C ( Commissariat à l'Energie Atomique et aux Energies Alternatives, LPCV, CNRS, CEA, INRA, Univ. Grenoble-Alpes, BIG, F-38000, Grenoble, France.); Farhi E ( Institut Laue-Langevin, F-38009, Grenoble, France.); Compagnon E ( Institut Laue-Langevin, F-38009, Grenoble, France.); de Gouvion Saint Cyr D ( CEA, LPCV, CNRS, INRA, Univ. Grenoble-Alpes, F-38000, Grenoble, France.); van Lis R ( Institut Laue-Langevin, F-38009, Grenoble, France.); Falconet D ( CEA, LPCV, CNRS, INRA, Univ. Grenoble-Alpes, F-38000, Grenoble, France.); Kuntz M ( CNRS, BIP, Univ. Aix-Marseille, F-13402, Marseille, France.); Atteia A ( CNRS, LPCV, CEA, INRA, Univ. Grenoble-Alpes, F-38000, Grenoble, France.); Couté A ( CNRS, LPCV, CEA, INRA, Univ. Grenoble-Alpes, F-38000, Grenoble, France.)
Abstract	Life can thrive in extreme environments where inhospitable conditions prevail. Organisms which resist, for example, acidity, pressure, low or high temperature, have been found in harsh environments. Most of them are bacteria and archaea. The bacterium Deinococcus radiodurans is considered to be a champion among all living organisms, surviving extreme ionizing radiation levels. We have discovered a new extremophile eukaryotic organism that possesses a resistance to ionizing radiations similar to that of D. radiodurans. This microorganism, an autotrophic freshwater green microalga, lives in a peculiar environment, namely the cooling pool of a nuclear reactor containing spent nuclear fuels, where it is continuously submitted to nutritive, metallic, and radiative stress. We investigated its morphology and its ultrastructure by light, fluorescence and electron microscopy as well as its biochemical properties. Its resistance to UV and gamma radiation was assessed. When submitted to different dose rates of the order of some tens of mGy · h to several thousands of Gy · h , the microalga revealed to be able to survive intense gamma-rays irradiation, up to 2,000 times the dose lethal to human. The nuclear genome region spanning the genes for small subunit ribosomal RNA-Internal Transcribed Spacer (ITS) 1-5.8S rRNA-ITS2-28S rRNA (beginning) was sequenced (4,065 bp). The phylogenetic position of the microalga was inferred from the 18S rRNA gene. All the revealed characteristics make the alga a new species of the genus Coccomyxa in the class Trebouxiophyceae, which we name Coccomyxa actinabiotis sp. nov.
File Format	HTM / HTML
ISSN	00223646
Issue Number	5
Journal	Journal of Phycology
Volume Number	52
e-ISSN	15298817
Language	English
Publisher	Wiley
Publisher Date	2016-10-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Botany
Content Type	Text
Resource Type	Article
Subject	Plant Science Aquatic Science

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Phylogenetic characterization and morphological and physiological aspects of a novel acidotolerant and halotolerant microalga Coccomyxa onubensis sp. nov. (Chlorophyta, Trebouxiophyceae)

Erratum to: Phylogenetic characterization and morphological and physiological aspects of a novel acidotolerant and halotolerant microalga Coccomyxa onubensis sp. nov. (Chlorophyta, Trebouxiophyceae)

Erratum to: Phylogenetic characterization and morphological and physiological aspects of a novel acidotolerant and halotolerant microalga Coccomyxa onubensis sp. nov. (Chlorophyta, Trebouxiophyceae)

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TAXONOMY AND PHYLOGENY OF NEPHROSELMIS CLAVISTELLA SP. NOV. (NEPHROSELMIDOPHYCEAE, CHLOROPHYTA)(1).

Coccomyxa actinabiotis sp. nov. (Trebouxiophyceae, Chlorophyta), a new green microalga living in the spent fuel cooling pool of a nuclear reactor.

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