
Microbe reveals link between primordial organisms, complex life
Aug. 6 (UPI) -- Primordial, single-celled organisms and complex life share an important cellular process, according to a new study published Thursday in the journal Science, which researchers say supports a theory on the origin of complex life on Earth. The new research showed Sulfolobus acidocaldarius, a microbe that thrives inside acidic hot springs, uses a protein called proteasome to manage cell division and break down other proteins. Advertisement Sulfolobus acidocaldarius is a member of the single-celled domain known as archaea, which emerged alongside bacteria some 3.5 billion years ago. Roughly 1 billion years after they emerged, scientists estimate a bacteria cell and archaea cell merged, yielding eukaryotes -- cells that contain a clearly defined nucleus. All protozoa, fungi, pl...