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亚碲酸钾和脑心浸液在琼脂平板上李斯特菌属溶血表型表达中的作用。

Role of potassium tellurite and brain heart infusion in expression of the hemolytic phenotype of Listeria spp. on agar plates.

作者信息

Fernandez-Garayzabal J F, Delgado C, Blanco M, Vazquez-Boland J A, Briones V, Suarez G, Dominguez L

机构信息

Departamento de Patología Animal I (Sanidad Animal), Facultad de Veterinaria, Universidad Complutense, Madrid, Spain.

出版信息

Appl Environ Microbiol. 1992 Jan;58(1):434-8. doi: 10.1128/aem.58.1.434-438.1992.

DOI:10.1128/aem.58.1.434-438.1992
PMID:1539991
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC195232/
Abstract

The influence of potassium tellurite (PT) and brain heart infusion agar (Difco), two components of modified Listeria selective agar medium (LSAMm), on the hemolytic phenotype of Listeria spp. was studied. L. monocytogenes and L. ivanovii displayed bigger zones of hemolysis on brain heart intusion agar compared with on Columbia agar base. The addition of PT increased the sizes of zones of hemolysis displayed by L. monocytogenes. This effect seemed to be produced by the enhancement of the cytolytic effect of listeriolysin O. PT decreased the hemolysis produced by L. ivanovii, and this effect seemed to be due to an inhibition of the sphingomyelinase C produced by this species.

摘要

研究了改良李斯特菌选择性琼脂培养基（LSAMm）的两种成分亚碲酸钾（PT）和脑心浸液琼脂（Difco）对李斯特菌属溶血表型的影响。与在哥伦比亚琼脂基础培养基上相比，单核细胞增生李斯特菌和伊氏李斯特菌在脑心浸液琼脂上显示出更大的溶血圈。添加PT增加了单核细胞增生李斯特菌显示的溶血圈大小。这种效应似乎是由李斯特菌溶血素O的溶细胞作用增强所产生的。PT降低了伊氏李斯特菌产生的溶血，这种效应似乎是由于对该菌产生的鞘磷脂酶C的抑制作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ffc4/195232/d4c67311f311/aem00042-0456-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ffc4/195232/b232eae07170/aem00042-0456-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ffc4/195232/d4c67311f311/aem00042-0456-b.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ffc4/195232/b232eae07170/aem00042-0456-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ffc4/195232/d4c67311f311/aem00042-0456-b.jpg

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