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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…)

Cracking the Oyster’s Code

By Guest PostSeptember 23, 2012Natureair exposure, analysis, atlantic, bioengineering project, cell, death, delaware, DNA, dynamic environment, evolution, factor, genetic code, genome, genome project, gulf coast, heat shock, immune response, oyster, pacific oyster, parasites, pathogen, patrick m gaffney, stress, survival, temperature fluctuation, toxic chemical, toxic metal, university

International team of scientists finds adaptations to stress in oyster genome

When it comes to stress, oysters know how to deal. The tough-shelled mollusks can survive temperature fluctuations, toxic metals and exposure to air, and a new study of their genetic makeup is helping to explain how.

An international team of scientists, including the University of Delaware’s Patrick M. Gaffney, professor of marine biosciences, sequenced the genome of the Pacific oyster, Crassostrea gigas, in a Nature paper published on Sept. 19. (more…)

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

Cracking the Oyster’s Code