In addition to the nucleus, eukaryotic cells may contain several other types of organelles, which may include mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus ...

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 ...

1 “If this is true,” said Pedro Leão, an archaeal biologist at Radboud University, “we have to understand what types of features this [archaeal] host was bringing to the first eukaryote.” As a ...