Xanthan gum-producing strain of xanthomonas

Chemistry: molecular biology and microbiology – Micro-organism – per se ; compositions thereof; proces of... – Bacteria or actinomycetales; media therefor


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435104, 536 237, 935 42, 935 72, C12N 121




A method of increasing xanthan gum production, comprising culturing a Xanthomonas campestris strain having a xanthan-increasing modification in a culture medium, wherein the modification is selected from the group consisting of (1) a mutation causing rifampicin-resistance; (2) a mutation causing bacitracin-resistance; or (3) exogenous genetic information controlling the synthesis of xanthan; and separating xanthan from the culture medium, is provided along with specific DNA sequences and Xanthomonas campestris strains showing increased xanthan gum production.

Harding et al., J. Bacteriology, vol. 169, 1987, pp. 2854-2861.
Harding et al., Abstr. Ann. Meeting of Amer. Soc. for Microbiol, p. 273, Abstract No. 0-64, Mar. 1986.


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