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  • 315954PublicAssets/3254By attaching fluorescent proteins to the genetic circuit responsible for <i>B. subtilis</i>'s stress response, researchers can observe the cells' pulses as green flashes. This video shows flashing cells as they multiply over the course of more than 12 hours. In response to a stressful environment like one lacking food, <i>B. subtilis</i> activates a large set of genes that help it respond to the hardship. Instead of leaving those genes on as previously thought, researchers discovered that the bacteria flip the genes on and off, increasing the frequency of these pulses with increasing stress. See entry <a href="https://images.nigms.nih.gov/pages/DetailPage.aspx?imageid2=3253">3253</a> for a related still image.Michael Elowitz, Caltech UniversityMichael Elowitz, Caltech UniversityVideo

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    Pulsating response to stress in bacteria - video

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    By attaching fluorescent proteins to the genetic circuit responsible for B. subtilis's stress response, researchers can observe the cells' pulses as green flashes. This video shows flashing cells as they multiply over the course of more than 12 hours. In response to a stressful environment like one lacking food, B. subtilis activates a large set of genes that help it respond to the hardship. Instead of leaving those genes on as previously thought, researchers discovered that the bacteria flip the genes on and off, increasing the frequency of these pulses with increasing stress. See entry 3253 for a related still image.

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    Michael Elowitz, Caltech University

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    Michael Elowitz, Caltech University

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    Video

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    3254

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