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Studies on the Mineral Nutrition of the Bulbiformin Producing Strain of Bacillus subtilis
Author(s) -
Mahmood M.
Publication year - 1969
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1969.tb00960.x
Subject(s) - bacillus subtilis , potassium , calcium , strain (injury) , chemistry , food science , phosphate , potassium phosphate , microbiology and biotechnology , biochemistry , bacteria , biology , chromatography , organic chemistry , anatomy , genetics
Summary The elements S, P and K were shown to be essential for both growth and bulbiformin production by Bacillus subtilis. The optimum requirements for these elements were 40, 50, 710 p/m, respectively, for both growth and antibiotic activity. The requirement of K for maximum growth was higher than for antibiotic activity. Calcium sulphate and calcium phosphate as S and P sources were particularly favourable for growth. Calcium or potassium sulphate and Na 2 S were suitable sources of S, and Ca 3 (PO 4 ) 2 , NaH 2 PO 4 , K 2 HPO 4 and MgHPO 4 suitable sources of P for bulbiformin production.