Separation of Spores and Parasporal Crystals of Bacillus thuringiensis in Gradients of Certain X-Ray Contrasting Agents

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RESUMO

Spores and parasporal crystals of Bacillus thuringiensis can be separated at moderate centrifugation speeds (10,000 to 12,000 rpm) in gradients of Renografin or sodium diatrizoate.

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