Sulphur requirements for growth of Acetivibrio cellulolyticus

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DOIResolve DOI: http://doi.org/10.1139/m82-117
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TypeArticle
Journal titleCanadian Journal of Microbiology
Volume28
Pages772777; # of pages: 6
AbstractThe 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.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Biological Sciences
Peer reviewedNo
NRC numberPATEL1982A
20199
NPARC number9372042
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Record identifier03daa648-e011-43b8-ad6b-13bc685a9b55
Record created2009-07-10
Record modified2016-05-09
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