A halophilic thermotolerant Bacillus isolated from a marine hot spring able to produce a new exopolysaccharide |
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Authors: | Teresa L. Maugeri Concetta Gugliandolo Daniela Caccamo Adriana Panico Licia Lama Agata Gambacorta Barbara Nicolaus |
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Affiliation: | (1) Dipartimento di Biologia Animale ed Ecologia Marina, Sez. Ecologia Microbica e Biotecnologie, Univ. Messina, Salita Sperone 31-98166, Messina, Italy;(2) Istituto di Chimica Biomolecolare (ICB, CNR), via Campi Flegrei, 34 Comprensorio Olivetti isol 70-80078 Pozzuoli Napoli, Italy |
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Abstract: | A halophilic, thermotolerant Bacillus strain (B3-15), isolated from water of a shallow, marine hot spring at Vulcano Island (Eolian Islands, Italy), produced an exocellular polysaccharide at 165 mg l–1. It grew on kerosene as sole carbon source and was resistant to Cd2+, Zn2+, As2+ and Hg2+. From 16S rDNA analysis, strain B3-15 was related to B. licheniformis. The exopolysaccharide was a tetrasaccharide repeating unit essentially constituted by sugars having a manno-pyranosidic configuration. |
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Keywords: | exopolysaccharide marine hydrothermal vent thermotolerant halophilic Bacillus |
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