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Sulphur requirements for growth of Acetivibrio cellulolyticus

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1139/m82-117
AuteurRechercher : 1; Rechercher : 1; Rechercher : 2
Affiliation
  1. Conseil national de recherches du Canada
  2. Conseil national de recherches du Canada. Institut des sciences biologiques du CNRC
FormatTexte, Article
Résumé
The sulphur requirement for growth of Acetivibrio cellulolyticus was determined using a mineral salts basal medium reduced with titanium(III) citrate and supplemented with 1% (w/v) cellobiose and 0.05% (w/v) yeast extract. Inorganic sulphide (Na2S∙9H2O) in the range of 0.7–1.0 mM was found to support maximum growth whereas 8.0 mM sulphide caused complete inhibition. Of the other sulphur-containing compounds tested (cystine, sodium thioglycollate, methionine, glutathione, homocystine, S-methyl-L-cysteine, inorganic sulphate) cysteine-HCl at 10–15 mM concentration was the only one which supported maximum growth that was at least 80% of that obtained in the optimum sulphide medium. A modified medium incorporating the optimum inorganic sulphide concentration supported maximum growth that was about twice that obtained in a conventional medium reduced with cysteine-Na2S. The possible reasons for the inhibition of growth in defined media containing Na2S as the sole reducing agent and the sulphur source are discussed.
Date de publication
Dans
  • Canadian Journal of Microbiology 28 (1982) : 772–777.
Langueanglais
Numéro du CNRCPATEL1982A
NRCC 20199
Numéro NPARC9372042
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Identificateur de l’enregistrement03daa648-e011-43b8-ad6b-13bc685a9b55
Enregistrement créé2009-07-10
Enregistrement modifié2020-03-13
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