Discussion 3. How Bacteria Communicate and Cooperate.
For your third graded discussion, find the discussion articles/talks grouped under the module called "Articles for Discussions III and IV", which can be found in the Modules section of the course, immediately below the module called "Syllabus and Other Information". Choose any of the links listed under Discussion III. Each link will take you to an article or talk that discusses a topic related to the roles bacteria play in the environment. Select one of the articles/talks. After you have read or listened to the article/talk, discuss your thoughts in a post. You may either start a thread or you can reply to someone else's comments. To receive credit, you must describe what you thought of the article and not just agree with another student or say I thought this was interesting too. (Or, instead, you must write something which shows that you have listened to or read the article.)
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How Bacteria Communicate and Cooperate
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How Bacteria Communicate and Cooperate
Bonnie Bassler, in her TED Talk, How Bacteria Talk, introduces the groundbreaking idea of quorum sensing-how bacteria communicate by chemical signals. She shows that what had been once considered solitary creatures, bacteria, in fact regulate group actions such as bioluminescence and virulence depending on their population density. This finding redefines how we perceive microbial behavior and shows the collective intelligence of these organisms. For example, Vibrio fischeri can only produce light when concentrated in high numbers (Bassler, 2009). Bassler's research demonstrates that the behavior of bacteria is not haphazard but strategic and calculated. Comprehending this communication may transform the microbial ecology and the management of diseases.
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