title: Cells inside cells: symbiosis and continuing phagotrophy.
abstract: Plastids evolved after a cell entered a genetically different cell, followed by integration of the two genomes. Many photosynthetic cells can ingest organic particles as food, as now demonstrated in an ancestral green alga.
authors.affiliation: Division of Plant Science, University of Dundee at the James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK. j.a.raven@dundee.ac.uk
authors.forename: John A
authors.initials: JA
authors.lastname: Raven
mesh_terms: D000458:Cyanobacteria / Q000502:physiology*; D010587:Phagocytosis / Q000502:physiology*; D010788:Photosynthesis / Q000502:physiology*; D010839:Phytoplankton / Q000502:physiology*