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Physiological and biochemical contributions to the taxonomy of the genus prototheca

I. Hydrogenase, acid tolerance, salt tolerance, thermophily, and liquefaction of gelatin

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Abstract

Five physiological and biochemical characters, which had proved to be valuable for the taxonomy of the genus Chlorella, were studied in the genus Prototheca. There is no hydrogenase activity and no liquefaction of gelatin. Most strains are very acidtolerant (limit of growth at pH 2.0 or 2.5) and very salt-tolerant (limit of growth at 4 or 5% NaCl). Two strains grow well at 38°C. The 16 strains, which were previously assigned to seven taxa, fall into four different groups. Our results tend to support the assumption that Prototheca might be related to Chlorella protothecoides.

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  1. Institut für Botanik und Pharmazeutische Biologie der Universität, Schlossgarten 4, D-8520, Erlangen, Federal republic of Germany

    Erich Kessler

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  1. Erich Kessler
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Kessler, E. Physiological and biochemical contributions to the taxonomy of the genus prototheca . Arch. Microbiol. 113, 139–141 (1977). https://doi.org/10.1007/BF00428593

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  • DOI: https://doi.org/10.1007/BF00428593

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