Jun 13th, 2008 · About 20 years ago, researchers discovered Prochlorococcus, a photosynthetic marine microorganism. Penny Chisholm, a biologist at MIT whose work led to the discovery of the microbe, talks about its role in producing 20 percent of the oxygen in the Earth's air.
Keywords: Marine · celebration · anniversary · oxygen · Biologists · discovery · MIT · microorganisms · microbes · Prochlorococcus · photosynthetic · Penny Chisholm
Jun 12th, 2008 · The oxygen in one out of every five breaths you take comes from a bacterium called Prochlorococcus. But this tiny microbe — one of the most abundant organisms on Earth — was discovered only 20 years ago.
Keywords: organization · oxygen · Breath · abundant · Bacterium · microbes · Prochlorococcus
