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Engineering Bacterial Live Wires

By Guest PostMarch 13, 2013Sciencebacterial species, berkeley lab, bioelectronic systems, biological wire, caroline ajo franklin, cell membranes, cheryl goldbeck, common language, e coli, electron, electronic communication systems, energy, energy conversion techniques, guillaume cambray, heather jensen, information transfer, largus angenent, living cell, matt hepler, metabolic pathways, michaela teravest, molecular foundry, mr 1, mtrcab pathway, nanocrystalline iron oxide, nicole beedle, protein complex, shewanella oneidensis, strain, synthesis, university of california, vivek mutalik, yancey appling

Berkeley Lab scientists discover the balance that allows electricity to flow between cells and electronics

Just like electronics, living cells use electrons for energy and information transfer. Despite electrons being a common “language” of the living and electronic worlds, living cells cannot speak to our largely technological realm. Cell membranes are largely to blame for this inability to plug cells into our computers: they form a greasy barrier that tightly controls charge balance in a cell. Thus, giving a cell the ability to communicate directly with an electrode would lead to enormous opportunities in the development of new energy conversion techniques, fuel production, biological reporters, or new forms of bioelectronic systems. (more…)

Study Suggests Antibiotics Might be Another Suspect in Honey Bee Die-off

By Guest PostNovember 3, 2012Natureagriculture, american beekeepers, american foulbrood, antibiotics, bacterial pathogen, bacterial species, baoyu tian, bee colonies, bee pollination, bee population, bumblebees, disorder, drug, elijah powell, evolutionary event, factor, genetic analysis, gut bacteria, health hazard, honey bee, livestock, mbio, mysterious colony, nancy moran, nibal fadhil, parasites, pathogen, tetracycline, tylosin, united states, waldan kwong, west campus, william fleming, yale university

The gut bacteria of honey bees have acquired several genes that confer resistance to tetracycline, a direct result of more than five decades of use of antibiotics by American beekeepers and a potential health hazard for bee colonies, a new study by Yale University researchers show.

The genetic analysis of the gut bacteria, which are believed to help in bees’ digestion and ability to ward off parasites, suggests changing antibiotic use by beekeepers might be one factor in the mysterious colony collapse disorder afflicting bee populations. (more…)

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Engineering Bacterial Live Wires

Study Suggests Antibiotics Might be Another Suspect in Honey Bee Die-off