A plasmid on the road to becoming a virus

Plasmids have been discovered that can move from cell to cell within membrane vesicles in a species of Archaea (link to paper). They provide clues about the origin of virus particles. Electron microscope analysis of the culture medium from Halobrum lacusprofundi R1S1, an Archaeal strain from Antarctica, revealed spherical particles which were subsequently shown to …

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TWiV 428: Lyse globally, protect locally

The TWiVsters explain how superspreader bacteriophages release intact DNA from infected cells, and the role of astrocytes in protecting the cerebellum from virus infection. You can find TWiV #428 at, or listen below. [powerpress url=”″] Click arrow to play Download TWiV 428 (65 MB .mp3, 108 min) Subscribe (free): iTunes, RSS, email Become a patron of TWiV!

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