General practitioner's view on the aged.
Explore the source record for details and available documents.
Aged↗
Biomedical subjects
E P Wyatt
Publications and source records attributed to E P Wyatt.
Survey of the sensitivity of microorganisms to rubratoxin B.
Of the 133 microorganisms tested, Tetrahymena pyriformis and Volvox aureus were the most sensitive to rubratoxin B, being inhibited at 25 and 50 mug/ml, respectively.
Animals↗
Environmental and nutritional factors affecting the production of rubratoxin B by Penicillium rubrum Stoll.
Rubratoxin B can be produced in a semisynthetic medium by Penicillium rubrum under varying environmental and nutritional conditions. Maximum production (552.0 mg/500 ml) was obtained with P. rubrum NRRL A-11785 grown in stationary cultures of Mosseray's simplified Raulin solution supplemented with 2.5% malt extract broth at ambient temperature. Zinc is required at levels of at least 0.4 mg per liter. In the absence of iron sulfate, there was a 50-fold reduction in rubratoxin B production but not in growth. No toxin was produced by this isolate in 5- or 7-liter fermentors.
Culture Media↗