RT Journal Article SR Electronic(1) A1 Teninges, Danielle A1 Plus, NadineYR 1972 T1 P virus of Drosophila melanogaster, as a new picornavirus JF Journal of General Virology, VO 16 IS 1 SP 103 OP 109 DO https://doi.org/10.1099/0022-1317-16-1-103 PB Microbiology Society, SN 1465-2099, AB Drosophila P virus was described by Plus & Duthoit (1969) as a small icosahedral virus, 25 nm. in diameter, endemic in many Drosophila populations. In naturally infected strains, this virus has little effect on flies. When injected, however, it causes female sterility and reduces the life span of both sexes by half (David & Plus, 1971). Just before death, injected flies become turgid with liquid, suggesting malfunction of the Malpighian tubules responsible for water exchanges in insects. An electron microscopic study was undertaken in order to characterize the virus and the response of the virus to certain chemicals was observed. The P virus exhibited properties consistent with those of the picornaviruses. Heterozygous Drosophila melanogaster vg, free from known Drosophila viruses: P (Plus & Duthoit, 1969), σ (L'Héritier, 1970) and Iota (Jousset, 1970), were used as standard flies for injections., UL https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-16-1-103