Lehrbuch der pathologischen Mykologie; Vorlesungen für Ärzte und Studierende, bearb. von P. Baumgarten.

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Lehrbuch der pathologischen Mykologie; Vorlesungen für Ärzte und Studierende, bearb. von P. Baumgarten.

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Gastrite espontânea do camondongo e cogumelos do gênero Geotrichum Link

Slight acute catarrhal gastritis associated with fungi of the genus Geotrichum LINK was found to occur in apparently healthy white mice. This is of practical importance considering that the mouse is extensively employed in experimental work on nutrition.

Crittogamia agraria, pel Dr. O. Comes.

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Thesaurus litteraturae mycologicae et lichenologicae ratione habita praecipue omnium quae adhuc scripta sunt de mycologia applicata quem congesserunt G. Lindau et P. Sydow.

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Thesaurus litteraturae mycologicae et lichenologicae ratione habita praecipue omnium quae adhuc scripta sunt de mycologia applicata quem congesserunt G. Lindau et P. Sydow.

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A handbook of the fungus diseases of West Indian plants.

1910

Ensaios de micologia

The author passes in review what he has observed during 44 years of clinical data, and principally, of the laboratory, completing has been published in former works on Ringworm and fungi that injure the skin and dependencies. The author refers to the debated question of the systematisation and nomenclature of the fungi or Ringworm considering the best classification to be that of R. Sabouraud. He thinks there should be an itnernational Congress of Specialists for the complete solution of the problem. He showed that, in 261 samples, the highest percentage (47,1%) was of Microsporum, followed by Trichopytons with 14,1% and in the third place, together with 11,4% Epidermophyton floccosum and Malassezia furfur. The remaining species were in a low percentage. He verified in Minas Gerais the relative rarity of Trichophyton violaceum, the culture and pathogenic power of which he studied, showing that, contrary to what has been verified in other countries (12 to 50%) and even in Brasil (S. Paulo 47%) where the Ringworm is produced by this fungi. He atributes this fact, in Minas Gerais, to the relatively small immigration of person from Europe.

Flippase (FLP) recombinase-mediated marker recycling in the dermatophyte Arthroderma vanbreuseghemii.

Biological processes can be elucidated by investigating complex networks of relevant factors and genes. However, this is not possible in species for which dominant selectable markers for genetic studies are unavailable. To overcome the limitation in selectable markers for the dermatophyte Arthroderma vanbreuseghemii (anamorph: Trichophyton mentagrophytes), we adapted the flippase (FLP) recombinase-recombination target (FRT) site-specific recombination system from the yeast Saccharomyces cerevisiae as a selectable marker recycling system for this fungus. Taking into account practical applicability, we designed FLP/FRT modules carrying two FRT sequences as well as the flp gene adapted to the pathogenic yeast Candida albicans (caflp) or a synthetic codon-optimized flp (avflp) gene with neomycin resistance (nptII) cassette for one-step marker excision. Both flp genes were under control of the Trichophyton rubrum copper-repressible promoter (PCTR4). Molecular analyses of resultant transformants showed that only the avflp-harbouring module was functional in A. vanbreuseghemii. Applying this system, we successfully produced the Ku80 recessive mutant strain devoid of any selectable markers. This strain was subsequently used as the recipient for sequential multiple disruptions of secreted metalloprotease (fungalysin) (MEP) or serine protease (SUB) genes, producing mutant strains with double MEP or triple SUB gene deletions. These results confirmed the feasibility of this system for broad-scale genetic manipulation of dermatophytes, advancing our understanding of functions and networks of individual genes in these fungi.