Evaluation of phenotypic markers associated with pathogenicity in the genus Listeria Avaliação de marcadores fenotípicos associados à patogenicidade no gênero Listeria
A total of 130 Listeria strains were tested in order to evaluate lecithinase production and capacity for Congo red adsorption as markers of pathogenicity. The strains were identified according to acid production from sugars and by the CAMP test and the data were correlated with the ability to produc...
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Universidade de São Paulo (USP)
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ftdoajarticles:oai:doaj.org/article:27bdb7874725473b8a4ac70a43f74906 2024-09-09T19:26:08+00:00 Evaluation of phenotypic markers associated with pathogenicity in the genus Listeria Avaliação de marcadores fenotípicos associados à patogenicidade no gênero Listeria Zilma das Graças Nunes Ernesto Hofer 1994-08-01T00:00:00Z https://doi.org/10.1590/S0036-46651994000400001 https://doaj.org/article/27bdb7874725473b8a4ac70a43f74906 EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651994000400001 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651994000400001 0036-4665 1678-9946 https://doaj.org/article/27bdb7874725473b8a4ac70a43f74906 Revista do Instituto de Medicina Tropical de São Paulo, Vol 36, Iss 4, Pp 293-299 (1994) Listeria monocytogenes Hemolysin Lecithinase Congo red adsorption Keratoconjunctivitis Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 1994 ftdoajarticles https://doi.org/10.1590/S0036-46651994000400001 2024-08-05T17:49:30Z A total of 130 Listeria strains were tested in order to evaluate lecithinase production and capacity for Congo red adsorption as markers of pathogenicity. The strains were identified according to acid production from sugars and by the CAMP test and the data were correlated with the ability to produce keratoconjunctivitis in guinea pigs. L. monocytogenes cultures presented 51.8% and 88.8% positivity rates for Congo red adsorption and lecithinase production, respectively, whereas 80.8% and 100% for L. innocua cultures were negative for the two test, respectively Com propósito de avaliar a produção de lecitinase e a capacidade de adsorção do corante vermelho Congo como marcadores de patogenicidade, foram estudadas 130 amostras de Listeria. Estas amostras foram identificadas segundo a produção de ácido a partir de açúcares aliada ao teste CAMP, correlacionando-se estes dados à capacidade de produção de ceratoconjuntivite em cobaio. As culturas de L. monocytogenes apresentaram taxas de positividade para a adsorção do corante e produção de lecitinase de 51,8 e 88,8%, respectivamente, enquanto 80,8% e 100% das culturas de L. innocua foram negativas para os referidos testes. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista do Instituto de Medicina Tropical de São Paulo 36 4 293 299 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Listeria monocytogenes Hemolysin Lecithinase Congo red adsorption Keratoconjunctivitis Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Listeria monocytogenes Hemolysin Lecithinase Congo red adsorption Keratoconjunctivitis Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Zilma das Graças Nunes Ernesto Hofer Evaluation of phenotypic markers associated with pathogenicity in the genus Listeria Avaliação de marcadores fenotípicos associados à patogenicidade no gênero Listeria |
topic_facet |
Listeria monocytogenes Hemolysin Lecithinase Congo red adsorption Keratoconjunctivitis Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
A total of 130 Listeria strains were tested in order to evaluate lecithinase production and capacity for Congo red adsorption as markers of pathogenicity. The strains were identified according to acid production from sugars and by the CAMP test and the data were correlated with the ability to produce keratoconjunctivitis in guinea pigs. L. monocytogenes cultures presented 51.8% and 88.8% positivity rates for Congo red adsorption and lecithinase production, respectively, whereas 80.8% and 100% for L. innocua cultures were negative for the two test, respectively Com propósito de avaliar a produção de lecitinase e a capacidade de adsorção do corante vermelho Congo como marcadores de patogenicidade, foram estudadas 130 amostras de Listeria. Estas amostras foram identificadas segundo a produção de ácido a partir de açúcares aliada ao teste CAMP, correlacionando-se estes dados à capacidade de produção de ceratoconjuntivite em cobaio. As culturas de L. monocytogenes apresentaram taxas de positividade para a adsorção do corante e produção de lecitinase de 51,8 e 88,8%, respectivamente, enquanto 80,8% e 100% das culturas de L. innocua foram negativas para os referidos testes. |
format |
Article in Journal/Newspaper |
author |
Zilma das Graças Nunes Ernesto Hofer |
author_facet |
Zilma das Graças Nunes Ernesto Hofer |
author_sort |
Zilma das Graças Nunes |
title |
Evaluation of phenotypic markers associated with pathogenicity in the genus Listeria Avaliação de marcadores fenotípicos associados à patogenicidade no gênero Listeria |
title_short |
Evaluation of phenotypic markers associated with pathogenicity in the genus Listeria Avaliação de marcadores fenotípicos associados à patogenicidade no gênero Listeria |
title_full |
Evaluation of phenotypic markers associated with pathogenicity in the genus Listeria Avaliação de marcadores fenotípicos associados à patogenicidade no gênero Listeria |
title_fullStr |
Evaluation of phenotypic markers associated with pathogenicity in the genus Listeria Avaliação de marcadores fenotípicos associados à patogenicidade no gênero Listeria |
title_full_unstemmed |
Evaluation of phenotypic markers associated with pathogenicity in the genus Listeria Avaliação de marcadores fenotípicos associados à patogenicidade no gênero Listeria |
title_sort |
evaluation of phenotypic markers associated with pathogenicity in the genus listeria avaliação de marcadores fenotípicos associados à patogenicidade no gênero listeria |
publisher |
Universidade de São Paulo (USP) |
publishDate |
1994 |
url |
https://doi.org/10.1590/S0036-46651994000400001 https://doaj.org/article/27bdb7874725473b8a4ac70a43f74906 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista do Instituto de Medicina Tropical de São Paulo, Vol 36, Iss 4, Pp 293-299 (1994) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46651994000400001 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46651994000400001 0036-4665 1678-9946 https://doaj.org/article/27bdb7874725473b8a4ac70a43f74906 |
op_doi |
https://doi.org/10.1590/S0036-46651994000400001 |
container_title |
Revista do Instituto de Medicina Tropical de São Paulo |
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36 |
container_issue |
4 |
container_start_page |
293 |
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299 |
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