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Effets toxiques du vanadium sur le métabolisme de quelques algues d'eau douce cultivées in vitro

Variations observées au niveau de la synthèse des glucides solubles, des protéines et de la réduction des nitrates (Activité Nitrate-Reductase N R)

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Abstract

Laboratory studies on unialgal cultures have shown that Vanadium at a concentration of 1 000 µg 1−1 may have stimulatory and inhibitory effects on the metabolism of cells. A significant decrease in the synthesis of soluble carbohydrates caused by Vanadium at this concentration is demonstrated. In contrast, a stimulating effect on protein metabolism and nitrate-reductase activity in cells is shown. It is suggested that enhancement of this enzyme activity may be due to the cationic form of Vanadium, donating electrons and stimulating the reduction of nitrates, primarily activated by Molybdenum.

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  1. Laboratoire d'Hydrobiologie, Université de Rennes I, (35000), Rennes, France

    Bernard Savouré

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  1. Bernard Savouré
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Savouré, B. Effets toxiques du vanadium sur le métabolisme de quelques algues d'eau douce cultivées in vitro. Hydrobiologia 118, 147–151 (1984). https://doi.org/10.1007/BF00021039

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  • DOI: https://doi.org/10.1007/BF00021039

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