Abstract:
:A founding paradigm in virology is that the spatial unit of the viral replication cycle is an individual cell. Multipartite viruses have a segmented genome where each segment is encapsidated separately. In this situation the viral genome is not recapitulated in a single virus particle but in the viral population. How multipartite viruses manage to efficiently infect individual cells with all segments, thus with the whole genome information, is a long-standing but perhaps deceptive mystery. By localizing and quantifying the genome segments of a nanovirus in host plant tissues we show that they rarely co-occur within individual cells. We further demonstrate that distinct segments accumulate independently in different cells and that the viral system is functional through complementation across cells. Our observation deviates from the classical conceptual framework in virology and opens an alternative possibility (at least for nanoviruses) where the infection can operate at a level above the individual cell level, defining a viral multicellular way of life.
journal_name
Elifejournal_title
eLifeauthors
Sicard A,Pirolles E,Gallet R,Vernerey MS,Yvon M,Urbino C,Peterschmitt M,Gutierrez S,Michalakis Y,Blanc Sdoi
10.7554/eLife.43599subject
Has Abstractpub_date
2019-03-12 00:00:00issn
2050-084Xpii
43599journal_volume
8pub_type
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