A novel Virbio hraveyi mutant with altered quorum sensing regulation

• Autorzy: Czyż, A. , Zielke, R. , Węgrzyn, G.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

quorum sensing; marine bacteria; bioluminescence

• Czasopismo: Oceanological and Hydrobiological Studies
• Rocznik: 2005
• Tom: Vol. 34, No.2
• Strony: 55--61
• Opis fizyczny: Bibliogr. 19 poz., wykr.

Twórcy

autor

Czyż, A.

• Laboratory of Molecular Biology (affiliated with the University of Gdańsk), Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822 Gdańsk, Poland

autor

Zielke, R.

• Department of Molecular Biology, University of Gdańsk, Kładki 24, 80-822 Gdańsk, Poland

autor

Węgrzyn, G.

• Department of Molecular Biology, University of Gdańsk, Kładki 24, 80-822 Gdańsk, Poland,

Bibliografia

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