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View full lesson: http://ed.ted.com/lessons/how-bacteria-talk-bonnie-bassler Bonnie Bassler discovered that bacteria "talk" to each other, using a chemical l... 
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Rival colonies of the bacteria Paenibacillus dendritiformis can produce a lethal chemical that keeps competitors at bay. When competing colonies get too close poisons are unleashed, creating a toxic no-man's land in between.
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From the surface of our skin to deep inside our gut, humans are teeming with microbes. The trillions of microorganisms that inhabit humans make up 1 to 3 percent of our total mass and play a vital role in our everyday functions and overall health. More than 100,000 species of bacteria have been identified in the human body, though the population distribution of bacteria can vary greatly from individual to individual. Deciphering the complexity of the human microbiome will help determine new methods for health management and treatment of disease.
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That pocket-sized container of hand sanitizer will do little against the large army of bacteria that's currently on you. A new study has mapped out more than 10,000 bacteria that are currently on you.
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APC scientists have shown that brain levels of serotonin, the ‘happy hormone’ are regulated by the amount of bacteria in the gut during early life.
Gina Stepp's comment,
June 12, 2012 11:08 PM
Interesting . . . especially considering that gut regulation and other emotion-related processes are affected by early-life bonding (attachment . . . relationships). You can't separate bodily health from mental health in the end.
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New research shows how bacteria evolve to increase ecosystem functioning by recycling each other's waste. The study provides some of the first evidence for how interactions between species shape evolution when there is a diverse community.
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Just as banks store away only the most valuable possessions in the most secure safes, cells prioritize which genes they guard most closely, researchers have found.
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A person's mere presence in a room can add 37 million bacteria to the air every hour -- material largely left behind by previous occupants and stirred up from the floor -- according to new research by Yale University engineers.
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The mysterious organisms, found in the the mouth of the River Wear, in Sunderland, can generate electricity using a special battery called a microbial fuel cell.
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(PhysOrg.com) -- Cornell researchers have peered into the complex molecular network of receptors that give one-celled organisms like bacteria the ability to sense their environment and respond to chemical changes as small as 1 part in 1,000.
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“Scientists keep trying to formulate a theory of everything, and all they get are headaches. Clearly we're overthinking things. Our brains are too complex to comprehend the underlying simplicity of the universe. Cyanobacteria are not burdened by all that gray matter.” – Jonathon Keats, experimental philosopher
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Scientists grow carefully-managed bacterial communities, paving the way for bacteria-made drugs and alternative fuels.
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In some far off world, maybe there is such thing as tiny little microbe geniuses that've figured out the secrets of life before their bigger, more top o' the food chain human-like counterparts.
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Evolutionary biologists have long wondered why cooperation remains a viable survival strategy, since there will always be others who cheat. Now, MIT physicists have found a possible answer to this question: Among yeast, cooperative members of the population actually have a better chance of survival than cheaters when a competing species is introduced into an environment.
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"Entrepreneurial students from University College London are striving to create tropical paradises made from ocean garbage. The aim of the project is to collect tiny pieces of plastic trash floating in the ocean, then stick them all together to create islands of artificial habitat. “After months of planning, we are now rallying to construct a ‘plastic island’ using the principles of synthetic biology. In so doing we hope to provide a solution to one of the world’s major environmental problems – the North Pacific Garbage Patch,” the students write." Via Gerd Moe-Behrens, dianez
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From
vimeo
The human body is a diverse bacterial ecosystem. Humans are hosts to trillions of microbes, most of which are harmless or even beneficial.
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DNA may be ‘selfish’, but the emergent behaviour of cells can get pretty altruistic at times!
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From
phys
Forget computer viruses - magnet-making bacteria could be used to build tomorrow’s computers with larger hard drives and speedier connections.
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When faced with life-or-death situations, bacteria -- and maybe even human cells -- use an extremely sophisticated version of "game theory" to consider their options and decide upon the best course of action.
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Bacteria normally found 30km above the earth have been identified as highly efficient generators of electricity.
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“The smell of a body is the (bacteria themselves) which we breathe in with our nose and mouth, which we suddenly possess as though (they) were (the body’s) most secret substance and, to put the matter in a nutshell, its nature. The smell which is in me is the fusion of the (bacteria) with my body…”
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People harbor more than 100 trillion microbes. These microbes live in various habitats on and within the human anatomy; the gut houses the densest population of all, containing hundreds of bacterial species.
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Getting reliable power in space has long been an issue. Solar power the go to solution for satellites and space stations Becomes less than useful as you move further out into the solar system thanks to light intensity decaying rapidly.
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