Virulence profiles of ten Paracoccidioides brasiliensis isolates obtained from armadillos (Dasypus novemcinctus)

2003 ◽  
Vol 41 (2) ◽  
pp. 89-96 ◽  
Author(s):  
F. Hebeler-Barbosa ◽  
M. R. Montenegro ◽  
E. Bagagli
Keyword(s):  
Paracoccidioides Brasiliensis ◽  
Dasypus Novemcinctus

scholarly journals Paracoccidioides brasiliensis Isolated from Nine-Banded Armadillos (Dasypus novemcinctus) Reveal Population Structure and Admixture in the Amazon Basin

2021 ◽  
Vol 7 (1) ◽  
pp. 54
Author(s):  
Eduardo Bagagli ◽  
Daniel Ricardo Matute ◽  
Hans Garcia Garces ◽  
Bernardo Guerra Tenório ◽  
Adalberto Garcia Garces ◽  
...  
Keyword(s):  
Population Structure ◽  
Latin America ◽  
Endemic Area ◽  
Amazon Basin ◽  
Paracoccidioides Brasiliensis ◽  
Pathogenic Fungi ◽  
Sensu Stricto ◽  
Species Level ◽  
Dasypus Novemcinctus ◽  
Show Evidence

Paracoccidioidomycosis is an endemic fungal disease to Latin America caused by at least five species-level genotypes of Paracoccidioides, named P. lutzii, P. brasiliensis (S1a and S1b populations), P. americana, P. restrepiensis, and P. venezuelensis. In this manuscript, we report on Paracoccidioides sp. sampling efforts in armadillos from two different areas in Brazil. We sequenced the genomes of seven Paracoccidioides isolates and used phylogenomics and populations genetics for genotyping. We found that P. brasiliensis and P. lutzii are both present in the Amazon region. Additionally, we identified two Paracoccidioides isolates that seem to be the result of admixture between divergent populations within P. brasiliensis sensu stricto. Both of these isolates were recovered from armadillos in a P. lutzii endemic area in Midwestern Brazil. Additionally, two isolates from human patients also show evidence of resulting from admixture. Our results suggest that the populations of P. brasiliensis sensu stricto exchange genes in nature. More generally, they suggest that population structure and admixture within species is an important source of variation for pathogenic fungi.

scholarly journals High frequency of <emph type="2">Paracoccidioides brasiliensis</emph> infection in armadillos (<emph type="2">Dasypus novemcinctus):</emph> an ecological study

2003 ◽  
Vol 41 (3) ◽  
pp. 217-223 ◽  
Author(s):  
E. Bagagli ◽  
M. Franco ◽  
S. De M. G. Bosco ◽  
F. Hebeler-barbosa ◽  
L. A. Trinca ◽  
...  
Keyword(s):  
High Frequency ◽  
Ecological Study ◽  
Paracoccidioides Brasiliensis ◽  
Dasypus Novemcinctus

scholarly journals Biosynthesis of chondroitinase and hyaluronidase by different strains of Paracoccidioides brasiliensis

2003 ◽  
Vol 52 (6) ◽  
pp. 479-481 ◽  
Author(s):  
C. M. de Assis ◽  
R. F. Gandra ◽  
W. Gambale ◽  
M. T. Shimizu ◽  
C. R. Paula
Keyword(s):  
Enzyme Production ◽  
Potential Role ◽  
Paracoccidioides Brasiliensis ◽  
Colony Morphology ◽  
Dasypus Novemcinctus ◽  
Dog Food ◽  
Different Strains

The biosynthesis of chondroitinase and hyaluronidase by different isolates of Paracoccidioides brasiliensis was investigated in 20 strains isolated from patients (17 strains), a penguin (Pygocelis adeliae, one strain), an armadillo (Dasypus novemcinctus, one strain) and the environment (dog food, one strain). All the P. brasiliensis isolates studied had the ability to produce chondroitinase and hyaluronidase, although differences in colony morphology and enzyme production were detected among them. These results suggest that further investigations should be carried out in the clinical field in order to clarify the potential role of P. brasiliensis enzyme production in the pathogenesis of paracoccidioidomycosis.

Cerebriform colonies of Paracoccidioides brasiliensis isolated from nine-banded armadillos (Dasypus novemcinctus) at room temperature

Mycoses ◽  
2001 ◽  
Vol 44 (1-2) ◽  
pp. 9-12 ◽  
Author(s):  
R. Tanaka ◽  
A. Sano ◽  
M. Franco ◽  
E. Bagagli ◽  
M. Rubens Montenegro ◽  
...  
Keyword(s):  
Room Temperature ◽  
Paracoccidioides Brasiliensis ◽  
Dasypus Novemcinctus

scholarly journals Isolation of Paracoccidioides brasiliensis from armadillos (Dasypus novemcinctus) in an area where the fungus was recently isolated from soil

2000 ◽  
Vol 38 (3) ◽  
pp. 193-199 ◽  
Author(s):  
M. L. Silva-Vergara ◽  
R. Martinez ◽  
Z. P. Camargo ◽  
M. H. B. Malta ◽  
C. M. L. Maffei ◽  
...  
Keyword(s):  
Paracoccidioides Brasiliensis ◽  
Dasypus Novemcinctus

scholarly journals Paracoccidioidomicose enzoótica em tatus (Dasypus novemcinctus) no estado do Pará

1986 ◽  
Vol 28 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Roberto D. Naiff ◽  
Luiz C. L. Ferreira ◽  
Toby V. Barrett ◽  
Maricleide F. Naiff ◽  
Jorge R. Arias
Keyword(s):  
Paracoccidioides Brasiliensis ◽  
Dasypus Novemcinctus

Paracoccidioides brasiliensis foi encontrado, por inoculação de triturado de fígado e baço em hamsters, em 4 de 20 tatus (Dasypus novemcinctus) examinados na região de Tucuruí, Pará. Hamsters inoculados por via intradérmica e peritoneal com o parasito desenvolveram infecções generalizadas e morreram em 1½ a 13 meses. A diagnose do fungo foi confirmada por histopatologia e cultura. Não se observaram sinais macroscópios de doenças nos tatus. A distribuição geográfica de D. novemcinctus abrange a área endêmica de paracoccidioidomicose humana, sugerindo-se que o tatu tenha algum papel na ecologia do fungo.

scholarly journals Paracoccidioidomicose: atualização epidemiológica, clínica e terapêutica

2003 ◽  
Vol 78 (2) ◽  
pp. 135-146 ◽  
Author(s):  
Silvio Alencar Marques
Keyword(s):  
Paracoccidioides Brasiliensis ◽  
Dasypus Novemcinctus

São apresentados dados de atualização epidemiológica, clínica, diagnóstica e terapêutica relativos à paracoccidioidomicose. Discute-se a importância epidemiológica resultante do isolamento do Paracoccidioides brasiliensis a partir do tatu (Dasypus novemcinctus) em regiões do Brasil e Colômbia, assim como dos resultados de inquéritos soroepidemiológicos em cães e do surgimento do primeiro caso de paracoccidioidomicose doença em cão. As dificuldades de isolamento do fungo a partir do solo são correlacionadas com novos informes de investigação epidemiológica. São apresentados aspectos clínicos das manifestações da forma aguda da doença, assim como das manifestações da neuroparacoccidioidomicose e da enfermidade associada à infecção pelo HIV. Discute-se o papel da sorologia e da técnica da PCR no diagnóstico e dos possíveis avanços no tratamento da paracoccidioidomicose com os novos derivados triazólicos.

Ultrastructure of the Parotid Gland of the Nine-Banded Armadillo

1977 ◽  
Vol 35 ◽  
pp. 640-641
Author(s):  
J. R. Ruby
Keyword(s):  
Endoplasmic Reticulum ◽  
Parotid Gland ◽  
Periodic Acid ◽  
Acinar Cells ◽  
Duct System ◽  
Parotid Glands ◽  
Dasypus Novemcinctus ◽  
Anterior Portion ◽  
Periodic Acid Schiff ◽  
Thin Sections

Parotid glands were obtained from five adult (four male and one female) armadillos (Dasypus novemcinctus) which were perfusion-fixed. The glands were located in a position similar to that of most mammals. They extended interiorly to the anterior portion of the submandibular gland.In the light microscope, it was noted that the acini were relatively small and stained strongly positive with the periodic acid-Schiff (PAS) and alcian blue techniques, confirming the earlier results of Shackleford (1). Based on these qualities and other structural criteria, these cells have been classified as seromucous (2). The duct system was well developed. There were numerous intercalated ducts and intralobular striated ducts. The striated duct cells contained large amounts of PAS-positive substance.Thin sections revealed that the acinar cells were pyramidal in shape and contained a basally placed, slightly flattened nucleus (Fig. 1). The rough endoplasmic reticulum was also at the base of the cell.

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