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||P.12 top paragraph: "The burst size for prasinoviruses has been estimated to
be less than 100 virions per cell and experimental data has indicated between six and 15 viruses are
produced per host cell [primary source]. Considering that the host nucleus, mitochondrion and chloroplast remain
intact throughout virus assembly in the cytoplasm [primary source], this adds to the global constraints on virus
particle structure and the number of different capsid proteins required may reflect this. The internal
pressure of packaging a genome inside the capsid will also influence the structure."