Molecular architecture and assembly principles of Vibrio cholerae biofilms.
Molecular architecture and assembly principles of Vibrio cholerae biofilms.
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DOI:
10.1126/science.1222981
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发表时间:
2012-07-13
期刊:
影响因子:
--
通讯作者:
Chu S
中科院分区:
文献类型:
--
作者:
Berk V;Fong JC;Dempsey GT;Develioglu ON;Zhuang X;Liphardt J;Yildiz FH;Chu S
In their natural environment, microbes organize into communities held together by an extracellular matrix composed of polysaccharides and proteins. We developed an in vivo labeling strategy to allow the extracellular matrix of developing biofilms to be visualized with conventional and super-resolution light microscopy. Vibrio cholerae biofilms displayed three distinct levels of spatial organization: cells, clusters of cells, and collections of clusters. Multiresolution imaging of living V. cholerae biofilms revealed the complementary architectural roles of the four essential matrix constituents: RbmA provided cell-cell adhesion, Bap1 allowed the developing biofilm to adhere to surfaces, and heterogeneous mixtures of Vibrio polysaccharide (VPS), RbmC, and Bap1 formed dynamic, flexible and ordered envelopes that encased the cell clusters.
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