Monitoring the effect of pyrene on the germination and radial growth of the wild and mutant strains of Rhizopus arrhizus UCP402

Brazilian Archives of Biology and Technology

Ricardo Kenji Shiosaki²  Clarissa Daisy Da Costa Albuquerque²  Kaoru Okada²  Kazutaka Fukushima¹  Galba Maria Campos-takaki² 

[1] ,Universidade Católica de Pernambuco Núcleo de Pesquisas em Ciências Ambientais

关键词: Pyrene;    Rhizopus arrhizus;    mutant;    radial growth;    germination;   

DOI  :  10.1590/S1516-89132008000300024

来源: SciELO

【 摘 要 】

The physiological mutant of Rhizopus arrhizus was obtained in the pyrene resistance gradient test. Comparative studies were carried out about the behavior of the germination process and the radial growth of the mutant and wild strains of R. arrhizus UCP 402. Sabouraud Sucrose and Yeast Malt Broth cultures containing pyrene (10 mg/L) induced the germination process of the sporangiospores of the wild and mutant strains of R. arrhizus. The radial growth of the strains was inversely proportional to the pyrene concentration in the culture medium. The results showed an adaptation of R. arrhizus UCP 402x (mutant) in the pyrene (50mg/L) and suggested a higher ability of application in the removal of pyrene from the contaminated areas.

【 授权许可】

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