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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/29193
Title: Effect of acidic pH on the invasion efficiency and the type III Secretion system of Burkholderia thailandensis
Authors: Siroj Jitprasutwit
Wisansanee Thaewpia
Veerachat Muangsombut
Aroonlug Lulitanond
Chanvit Leelayuwat
Ganjana Lertmemongkolchai
Sunee Korbsrisate
Mahidol University
Khon Kaen Regional Hospital
Khon Kaen University
Keywords: Immunology and Microbiology
Issue Date: 3-Sep-2010
Citation: Journal of Microbiology. Vol.48, No.4 (2010), 526-532
Abstract: Burkholderia thailandensis is a close relative of Burkholderia pseudomallei. These organisms are very similar, but B. thailandensis is far less virulent than B. pseudomallei. Nucleotide sequencing and analysis of 14 B. thailandensis isolates revealed variation in the regions coding for the type III secreted BipD protein. The degree of B. thailandensis BipD sequence variation was greater than that found in B. pseudomallei. Western blot analysis indicated that, unlike B. pseudomallei, B. thailandensis type III secreted proteins including BipD and BopE could not be detected in the supernatant of culture medium unless induced by acidic conditions. In addition, culturing B. thailandensis under acidic growth conditions (pH 4.5) can induce the ability of this bacterium to invade human respiratory epithelial cells A549. The identification of an environmental stimulus that increases the invasion capability of B. thailandensis invasion is of value for those who would like to use this bacterium as a model to study B. pseudomallei virulence. © 2010 The Microbiological Society of Korea and Springer-Verlag Berlin Heidelberg.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77956100328&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/29193
ISSN: 12258873
12258873
Appears in Collections:Scopus 2006-2010

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