Moreno M A, Ramos M C, González A, Suárez G
Departamento de Microbiologia, Facultad de Veterinaria, Universidad Complutense de Madrid, Spain.
Can J Microbiol. 1987 Oct;33(10):927-9. doi: 10.1139/m87-162.
The effect of ultraviolet light irradiation (254 nm) on both the viability and the aflatoxin-producing ability of the fungus Aspergillus parasiticus NRRL 2999, a good aflatoxin-producing strain, was studied. This strain showed noticeable resistance and irradiation for more than 10 min was necessary to reduce survival to under 10%, while the white mutants were more susceptible (5 min of irradiation reduced survival to under 1%). Induction of mutants with complete loss of aflatoxigenicity was rare and only 3 of the 1463 survivors tested were aflatoxinless.
研究了紫外线（254纳米）照射对寄生曲霉NRRL 2999（一种优良的产黄曲霉毒素菌株）的活力和产黄曲霉毒素能力的影响。该菌株表现出显著的抗性，需要照射10分钟以上才能将存活率降低到10%以下，而白色突变体更敏感（照射5分钟可将存活率降低到1%以下）。完全丧失产黄曲霉毒素能力的突变体诱导很少见，在测试的1463个存活菌株中只有3个不产黄曲霉毒素。
