Articles

Title:	A novel Vibrio harveyi mutant with altered quorum sensing regulation
Authors:	Czyż Agata Zielke Ryszard Węgrzyn Grzegorz
Abstract:	The expression of genes involved in the luminescence (lux genes) of many light-emitting bacteria, including the marine bacterium Vibrio harveyi, is regulated by a phenomenon called quorum sensing. The expression of the lux genes, and thus the efficiency of light emission, depends on the concentration of cells in the environment. Bacterial luminescence is effective when cells occur at high density, whereas light emission is negligible in diluted cultures. Quorum sensing regulation is a complex process which requires the functioning of many genes. The current paper describes the recently isolated novel V. harveyi mutant, which now appears to be impaired in quorum sensing. The mutant produces autoinducers normally, but it is partially defective in responding to these molecules, thus its quorum sensing reaction is delayed relative to wild-type bacteria.
DOI:
Type of paper:	Original research paper
Pages:	55 to 61
Cytation:	Czyż A., Zielke R., Węgrzyn G., 2005, A novel Vibrio harveyi mutant with altered quorum sensing regulation, Ocean. Hydrob. Studies, 34(2): 55-61
Keywords:	quorum sensing, marine bacteria, bioluminescence
Year:	2005
Category:
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