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Brazilian Journal of Microbiology

versão impressa ISSN 1517-8382versão On-line ISSN 1678-4405

Resumo

PESSONI, Rosemeire A.B. et al. Woronin bodies in Penicillium janczewskii Zaleski. Braz. J. Microbiol. [online]. 2002, vol.33, n.2, pp.127-130. ISSN 1517-8382.  http://dx.doi.org/10.1590/S1517-83822002000200005.

Penicillium janczewskii Zaleski is an efficient microorganism for the production of extracellular inulinases and grows rapidly on medium containing sucrose or inulin as carbon source. Maintenance of this filamentous fungus on inulin medium induces secretion of large amounts of inulinases, but the resulting mycelium has thinner cell walls that easily collapse and break. Woronin bodies in hyphae of P. janczewskii grown on sucrose and inulin substrates were observed. No significant differences in the number, location, size and shape of Woronin bodies and level of plugging were observed in cultures of the fungus grown on the two carbon sources. The data indicate that the presence of Woronin bodies in P. janczewskii could not be associated with more easily damaged hyphae, although the function of these organelles in pore plugging has been confirmed.

Palavras-chave : Woronin bodies; Penicilliun; inulin; sucrose.

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