Genome Analysis of Marine Microbe Reveals a Metabolic Minimalist
Jonathan Zehr, a professor of ocean sciences at the University of California, Santa Cruz, characterized the microbe as an atypical member of the cyanobacteria, a group of photosynthetic bacteria formerly known as blue-green algae. Still lacking a formal taxonomic classification, it is known only as UCYN-A. First detected in the open ocean near Hawaii in 1998, it is now known to be periodically abundant in tropical and subtropical waters throughout the world.
Zehr, the marine microbiologist who discovered the microbe, said it has stubbornly resisted efforts to grow it in the laboratory. But that hasn’t stopped his team from determining the complete DNA sequence of its genome. Genome analysis enabled the researchers to reconstruct the organism’s unusual metabolic lifestyle. They published their findings in Nature in a paper available online February 21.
