Search Results for: Bacteria

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5,618 results

5,618 results for: Bacteria

  1. Space

    Martian sands

    Sandy soil on the Red Planet hints at an ancient mix of volcanic activity and water, a potent breeding ground for life.

    By Tia Ghose
  2. Anthropology

    Infectious Voyagers: DNA suggests Columbus took syphilis to Europe

    A genetic analysis of syphilis and related bacterial strains from different parts of the world fits the theory that Christopher Columbus and his crew brought syphilis from the Americas to Renaissance Europe, where it evolved into modern strains of the sexually transmitted disease.

    By Bruce Bower
  3. Health & Medicine

    Salmonella seeks sweets

    A sugarlike substance in the roots of lettuce may attract food-poisoning bacteria.

    By Janet Raloff

  4. Do-It-Yourself DNA: Scientists assemble first synthetic genome

    Assembly of the first human-made microbial genome could pave the way for making microbes with synthetic DNA.

    By Patrick Barry
  5. Agriculture

    The Good Earth

    The Smithsonian is out to share the "secrets" of soil.

    By Janet Raloff
  6. Humans

    ISEF winners announced

    More than 1,500 young scientists flexed their mental muscles this week at the world's largest high-school science competition.

    By Rachel Ehrenberg
  7. Life

    Choose your own splicer

    Zinc-finger proteins can cut, splice or tweak a targeted gene, and a new “open source” method for making customized zinc-finger proteins aimed at specific genes will give scientists easier access to this powerful genetic tool.

    By Patrick Barry
  8. Tech

    Biowarfare: Engineered virus can invade bacterial film

    A genetically engineered virus not only kills bacteria but makes an enzyme that breaks up the biofilm in which the bacteria live.

    By Davide Castelvecchi
  9. Life

    Fountain of Youth, with caveats

    A chemical in red wine thought to mimic the life-extending properties of calorie restriction improves health, but doesn’t necessarily lengthen life; it could also harm the brain.

    By Tina Hesman Saey
  10. Health & Medicine

    Still Waters: Skin disease microbe tracked to ponds, swamps

    Scientists establish pond water as the natural environment of Mycobacterium ulcerans, the cause of the skin disease Buruli ulcer.

    By Nathan Seppa
  11. Physics

    Rock, paper, toxins

    A computer model simulates a kind of rock-paper-scissors competition among three species of virtual bacteria.

    By Davide Castelvecchi
  12. Ecosystems

    Eight-legged bags of poison

    Birds eating arachnids get high dose of toxic metal as mercury climbs up the food chain.

    By Rachel Ehrenberg