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Bacillus Genetic Stock Center Catalog of Strains Seventh Edition ...

Bacillus Genetic Stock Center Catalog of Strains Seventh Edition ...

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MEDIA FOR GROWTH AND SPORULATION2×SG MediumLeighton, T. J. and R. H. Doi. 1971. J. Biol. Chem. 246:3189-3195.Although most strains <strong>of</strong> B. thuringiensis or B. cereus grow reasonably well in familiar media such as LB orNutrient broth, it is <strong>of</strong>ten possible to obtain higher growth densities and sporulation frequencies with morespecialized media. We have used a B. subtilis sporulation medium with very good results.Per liter <strong>of</strong> distilled water:Difco Nutrient brothKClMgSO 4·7H 2 OAgar (if desired)16.0 g2.0 g0.5 g17.0 gAdjust the pH to 7.0 with addition <strong>of</strong> 1 M NaOH. Autoclave. Cool to 55C and add:1 M Ca(NO 3 ) 2 1.0 ml0.1 M MnCl 2·H 2 O 1.0 ml1 mM FeSO 4 1.0 ml50% (w/v) glucose, filter sterilized 2.0 mlHCO MediumLecadet, M.-M., M. O. Blondel, J. Ribier. 1980. J. Gen. Microbiol. 121:203-12.A semi-defined medium for growth and sporulation in B. thuringiensis berliner and many other strains.Per liter <strong>of</strong> distilled water:Casamino acidsKH 2 PO 4MgSO 4·7H 2 OAgar7.0 g6.8 g0.12 g17 gAdjust the pH to 7.2. Autoclave. Cool to 55C and add from sterile stocks to a final concentration <strong>of</strong>:MnSO 4·4H 2 O 0.0022 gZnSO 4·7H 2 O0.014 gFe 2 (SO 4 ) 30.02 gCaCl 2·4H 2 O0.018 gGlucose3 gBP MediumA complete medium for growth and sporulation. Substitute 7.0 g <strong>of</strong> Bactopeptone (Difco) for the casaminoacids in HCO medium.MA18 MediumA minimal medium for growth and sporulation. Replace the casamino acids in CHO with a mixture <strong>of</strong> 18amino acids, each to a final concentration <strong>of</strong> 20 g/ml: alanine, arginine, aspartic acid, cysteine, glutamicacid, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, tyrosine,threonine, tryptophan, serine, and valine.25/Back to Table <strong>of</strong> Contents

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