Recent discoveries are revealing how the first eukaryote got its start. Three billion years ago, life on Earth was simple. Single-celled organisms ruled, and there wasn’t much to them. They were what ...

A eukaryote is any cell or organism that possesses a clearly defined nucleus. Eukaryotic cells form the foundation of complex, multicellular life, including apple trees, mushrooms, fish and humans.

This paper is part of a larger project investigating early eukaryote evolution. Riedman and Porter want to know in what environments early eukaryotes were diversifying, why they were there ...

Planctomycetes challenge our concept of the bacterial cell and of a prokaryote as a cell structure type, as well as our ideas about origins of the eukaryote nucleus. Planctomycetes Are Important ...

It’s time to welcome a new type of cell to the club of living things that can harvest nitrogen from the atmosphere. Until now, the only lifeforms thought to pull nitrogen from the air and turn ...

Many eukaryotic cells exhibit shape changes, with one of the most fascinating examples being the unicellular ciliated eukaryote Lacrymaria, known for its extraordinary dynamic shape-shifting.

But researchers now challenges this notion. They've discovered a eukaryote that contains absolutely no trace of mitochondria at all. Mitochondria are membrane-bound components within cells that ...

(A-D) Models that propose the origin of a nucleus-bearing but amitochondriate cell first, followed by the acquisition of mitochondria in a eukaryotic host. (E-G) Models that propose the origin of ...

A team of researchers discovered a novel partnership between a single-celled eukaryote—an organism with a clearly defined nucleus holding its genome—and a bacteria that generates energy for ...

At first, he mistook the long, white filaments as some sort of eukaryote, Gros said at the news conference. But a few years later, genetic analyses showed that the organisms were actually bacteria.

This paper is part of a larger project investigating early eukaryote evolution. Riedman and Porter want to know in what environments early eukaryotes were diversifying, why they were there ...