Genus of viruses
Prasinovirus is a genus of large double-stranded DNA viruses, in the family "Phycodnaviridae" that infect phytoplankton in the "Prasinophyceae". There are three groups in this genus, including "Micromonas pusilla virus SP1", which infects the cosmopolitan photosynthetic flagellate "Micromonas pusilla".
There is a large group of genetically diverse but related viruses that show considerable evidence of lateral gene transfer. 
Taxonomy.
The genus contains the following species:
Structure.
Viruses in "Prasinovirus" are enveloped, with icosahedral and round geometries, and T=169 symmetry. The diameter is around 104-118 nm.
Life cycle.
Viral replication is nucleo-cytoplasmic. Replication follows the DNA strand displacement model. DNA templated transcription is the method of transcription. The virus exits the host cell by lysis via lytic phospholipids. Alga serve as the natural host. Transmission routes are passive diffusion.
References.
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