کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
602300 | 879971 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Localized Quorum Sensing in Vibrio fischeri
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Localized Quorum Sensing in Vibrio fischeri Localized Quorum Sensing in Vibrio fischeri](/preview/png/602300.png)
چکیده انگلیسی
Quorum sensing is almost always regarded as a population density effect in three-dimensional bulk samples of bacteria. Here we create two-dimensional samples of Vibrio fischeri cells adhered onto glass surfaces to examine the effect of local population densities on quorum sensing. This is done by measuring the luminescent response. The 2-D bacterial populations enable us to simultaneously account for time and distance effects on quorum sensing, which were previously very challenging to access in typical three-dimensional bulk samples. Thus, we are able to consider quorum sensing in terms of signal diffusion. A diffusion model of quorum sensing signals guides the experiments and shows that for a given cell spacing (density) and diffusion time there exists a “true quorum”- a number of cells necessary for quorum sensing. We find that quorum sensing can occur locally in 2-D surface samples and is a function of cell population density as well as signal diffusion time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces B: Biointerfaces - Volume 62, Issue 2, 1 April 2008, Pages 180-187
Journal: Colloids and Surfaces B: Biointerfaces - Volume 62, Issue 2, 1 April 2008, Pages 180-187
نویسندگان
Mary E. Parent, Charles E. Snyder, Nathaniel D. Kopp, Darrell Velegol,