Document Detail

Reduced water availability influences the dynamics, development, and ultrastructural properties of Pseudomonas putida biofilms.
MedLine Citation:
PMID:  14526033     Owner:  NLM     Status:  MEDLINE    
Pseudomonas putida strain mt-2 unsaturated biofilm formation proceeds through three distinct developmental phases, culminating in the formation of a microcolony. The form and severity of reduced water availability alter cell morphology, which influences microcolony size and ultrastructure. The dehydration (matric stress) treatments resulted in biofilms comprised of smaller cells, but they were taller and more porous and had a thicker extracellular polysaccharide layer at the air interface. In the solute stress treatments, cell filamentation occurred more frequently in the presence of high concentrations of ionic (but not nonionic) solutes, and these filamented cells drastically altered the biofilm architecture.
Woo-Suk Chang; Larry J Halverson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of bacteriology     Volume:  185     ISSN:  0021-9193     ISO Abbreviation:  J. Bacteriol.     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2003-10-03     Completed Date:  2003-10-30     Revised Date:  2013-06-09    
Medline Journal Info:
Nlm Unique ID:  2985120R     Medline TA:  J Bacteriol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6199-204     Citation Subset:  IM    
Department of Agronomy. Graduate Program in Microbiology, Iowa State University, Ames, Iowa 50011-1010, USA.
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MeSH Terms
Biofilms / growth & development*
Green Fluorescent Proteins
Luminescent Proteins / metabolism
Microscopy, Confocal
Microscopy, Fluorescence
Pseudomonas putida / growth & development*,  physiology,  ultrastructure*
Reg. No./Substance:
0/Luminescent Proteins; 147336-22-9/Green Fluorescent Proteins; 7732-18-5/Water

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