Role of the Yersinia pestis yersiniabactin iron acquisition system in the incidence of flea-borne plague.

Plague is a flea-borne zoonosis caused by the bacterium Yersinia pestis. Y. pestis mutants lacking the yersiniabactin (Ybt) siderophore-based iron transport system are avirulent when inoculated intradermally but fully virulent when inoculated intravenously in mice. Presumably, Ybt is required to pro...

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Main Authors: Florent Sebbane, Clayton Jarrett, Donald Gardner, Daniel Long, B Joseph Hinnebusch
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2010-12-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3003698?pdf=render
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author Florent Sebbane
Clayton Jarrett
Donald Gardner
Daniel Long
B Joseph Hinnebusch
author_facet Florent Sebbane
Clayton Jarrett
Donald Gardner
Daniel Long
B Joseph Hinnebusch
author_sort Florent Sebbane
collection DOAJ
description Plague is a flea-borne zoonosis caused by the bacterium Yersinia pestis. Y. pestis mutants lacking the yersiniabactin (Ybt) siderophore-based iron transport system are avirulent when inoculated intradermally but fully virulent when inoculated intravenously in mice. Presumably, Ybt is required to provide sufficient iron at the peripheral injection site, suggesting that Ybt would be an essential virulence factor for flea-borne plague. Here, using a flea-to-mouse transmission model, we show that a Y. pestis strain lacking the Ybt system causes fatal plague at low incidence when transmitted by fleas. Bacteriology and histology analyses revealed that a Ybt-negative strain caused only primary septicemic plague and atypical bubonic plague instead of the typical bubonic form of disease. The results provide new evidence that primary septicemic plague is a distinct clinical entity and suggest that unusual forms of plague may be caused by atypical Y. pestis strains.
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spelling doaj.art-0a464c11fd524bf29a703ddbbb9f37f72022-12-22T01:34:50ZengPublic Library of Science (PLoS)PLoS ONE1932-62032010-12-01512e1437910.1371/journal.pone.0014379Role of the Yersinia pestis yersiniabactin iron acquisition system in the incidence of flea-borne plague.Florent SebbaneClayton JarrettDonald GardnerDaniel LongB Joseph HinnebuschPlague is a flea-borne zoonosis caused by the bacterium Yersinia pestis. Y. pestis mutants lacking the yersiniabactin (Ybt) siderophore-based iron transport system are avirulent when inoculated intradermally but fully virulent when inoculated intravenously in mice. Presumably, Ybt is required to provide sufficient iron at the peripheral injection site, suggesting that Ybt would be an essential virulence factor for flea-borne plague. Here, using a flea-to-mouse transmission model, we show that a Y. pestis strain lacking the Ybt system causes fatal plague at low incidence when transmitted by fleas. Bacteriology and histology analyses revealed that a Ybt-negative strain caused only primary septicemic plague and atypical bubonic plague instead of the typical bubonic form of disease. The results provide new evidence that primary septicemic plague is a distinct clinical entity and suggest that unusual forms of plague may be caused by atypical Y. pestis strains.http://europepmc.org/articles/PMC3003698?pdf=render
spellingShingle Florent Sebbane
Clayton Jarrett
Donald Gardner
Daniel Long
B Joseph Hinnebusch
Role of the Yersinia pestis yersiniabactin iron acquisition system in the incidence of flea-borne plague.
PLoS ONE
title Role of the Yersinia pestis yersiniabactin iron acquisition system in the incidence of flea-borne plague.
title_full Role of the Yersinia pestis yersiniabactin iron acquisition system in the incidence of flea-borne plague.
title_fullStr Role of the Yersinia pestis yersiniabactin iron acquisition system in the incidence of flea-borne plague.
title_full_unstemmed Role of the Yersinia pestis yersiniabactin iron acquisition system in the incidence of flea-borne plague.
title_short Role of the Yersinia pestis yersiniabactin iron acquisition system in the incidence of flea-borne plague.
title_sort role of the yersinia pestis yersiniabactin iron acquisition system in the incidence of flea borne plague
url http://europepmc.org/articles/PMC3003698?pdf=render
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