Chromosphaera perkinsii is a single-celled species discovered in 2017 in ... perkinsii, an ancestral species of protist. This unicellular organism separated from the animal evolutionary line ...

ABOVE: The ciliate Pseudoblepharisma tenue harbors both green algae and purple bacteria as symbionts. SEBASTIAN HESS M ore than a century ago, a German schoolteacher named Alfred Kahl made a career ...

In new research published this week, a team led by Marine Biological Laboratory (MBL) scientists reveals that symbiotic bacteria often accompany single-celled protists in the ocean's upper layer.

The short answer is they stole it, about a billion and a half years ago, when single-celled organisms called protists engulfed photosynthesizing bacteria. Over time, through the transfer of genes ...

My research examines the origin and evolutionary history of eukaryotic cells. I work with 'protists', that is, all those eukaryotes that are NOT animals, plants or fungi. Most protists are ...

because cells can vary in size dramatically without dividing. I also measure protists’ grazing rate: how fast and what they eat. That is an unknown and a focus of my study. The literature ...