Physiological and biochemical contributions to the taxonomy of the genus Chlorella |
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Authors: | Wolfgang Kerfin Erich Kessler |
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Institution: | (1) Institut für Botanik und Pharmazeutische Biologie der Universität, Schlossgarten 4, D-8520 Erlangen, Federal Republic of Germany |
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Abstract: | Starch hydrolysis, i.e., the production of extracellular amylolytic enzymes, was found to be a specific character for most species of the genus Chlorella. C. fusca var. vacuolata, C. spec. 211-30, and C. spec. 211-11r hydrolyse starch, whereas C. vulgaris, C. fusca var. rubescens, C. zofingiensis, C. fusca var. fusca, C. minutissima, C. homosphaera, C. kessleri, C. luteoviridis, and C. protothecoides are unable to hydrolyse starch. Only C. sorokiniana and C. saccharophila appear heterogenous; within C. sorokiniana, 7 strains hydrolyse starch and 9 do not; and within C. saccharophila, 6 strains exhibit amylolytic activity and 2 do not. — A key for the identification, according to 9 easily determined physiological and biochemical characters, of the Chlorella species is presented. |
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Keywords: | Biochemical taxonomy Chlorella Starch hydrolysis Amylase Extracellular enzymes |
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