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Accumulation of an iodophilic polysaccharide during growth of Acetivibrio cellulolyticus on cellobiose

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1007/BF00414695
AuthorSearch for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
Abstract
Maximum growth of Acetivibrio cellulolyticus in 1% cellobiose (w/v, added as filter sterilized solution) medium was observed after about 24h of incubation at 35°C. The metabolic end products of growth were H2, CO2, acetic acid, ethanol and glucose. Growth was adversely affected if cellobiose was autoclaved with the rest of the media ingredients. In the presence of an excess of cellobiose, the cells accumulated large quantities of an iodophilic polysaccharide (IPS). The maximum IPS accumulation (about 37% of the cell dry weight) was observed after about 12h growth under nitrogen-limiting conditions. Starvation of these cells anaerobically, in a pH 7.0 phosphate buffer for 10 h at 35°C, resulted in about 50% drop in the IPS. The results also indicated that A. cellulolyticus accumulated this iodophilic polysaccharide during growth on cellobiose but not during cultivation on cellulose.
Publication date
In
  • Archives of Microbiology 129, no. 4 (1981): 265–267.
LanguageEnglish
NRC numberPATEL1981A
NRCC 19386
NPARC number9364268
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Record identifier9fc2ee27-4b1e-4eba-8e7a-d5bb1362cfc1
Record created2009-07-10
Record modified2020-03-13
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