Document Detail

Rhamnolipid but not motility is associated with the initiation of biofilm seeding dispersal of Pseudomonas aeruginosa strain PA17.
MedLine Citation:
PMID:  23385822     Owner:  NLM     Status:  In-Data-Review    
Seeding dispersal is an active detachment exhibit in aging Pseudomonas aeruginosa biofilm. Yet, effect factors of this process in the biofilm of clinical isolated mucoid P. aeruginosa strain remain to be better characterized. In our previous work, one mucoid P. earuginosa strain PA17 was isolated from a patient with recurrent pulmonary infection. In this study, confocal scanning laser microscope combined with LIVE/DEAD viability staining revealed that PA17 biofilm exhibited earlier seeding dispersal than non-mucoid PAO1. We further compared the motility and the expression of motility-associated gene during biofilm development between PA17 and PAO1. PA17 was found to be impaired in all three kinds of motility compared to PAO1. Moreover, we investigated the expression of rhamnolipid-associated genes in PA17 and PAO1 biofilm. The expression of these genes was in accordance with the process of seeding dispersal. Our results indicated that rhamnolipid but not motility is associated with the initiation of seeding dispersal of PA17 biofilm.
Jingjing Wang; Bing Yu; Deying Tian; Ming Ni
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of biosciences     Volume:  38     ISSN:  0973-7138     ISO Abbreviation:  J. Biosci.     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-02-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8100809     Medline TA:  J Biosci     Country:  India    
Other Details:
Languages:  eng     Pagination:  149-56     Citation Subset:  IM    
Department of Infectious Diseases, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, PR China.
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