Heat resistance of Byssochlamys ascospores.

AUTOR(ES)

Bayne, H G

RESUMO

Ascospores from 25 strains of Byssochlamys were studied for their ability to resist heat treatment in a standard defined medium. Seven of these were able to survive heating at 90 degrees C for 25 min or longer, when initial numbers were frequently near 10(6)/ml. Ascospores from five resistant strains suspended in the medium at pH 5.0 were usually more resistant than those at pH 3.6. Rapid heat inactivation occurred for one strain at pH 6.6. Nonlogarithmic heat death rate was observed in all strains tested.

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