becurtovirus becurtovirus becurtovirus is a genus of viruses, in the family geminiviridae. dicotyledonous plants serve as natural hosts. there are three species in this genus. becurtovirus virus classification (unranked): virus realm: monodnaviria kingdom: shotokuvirae phylum: cressdnaviricota class: repensiviricetes order: geplafuvirales family: geminiviridae genus: becurtovirus taxonomy the following three species are assigned to the genus: beet curly top iran virus exomis microphylla latent virus spinach curly top arizona virus structure viruses in becurtovirus are non-enveloped, with icosahedral geometries, and t=1 symmetry. genomes are circular and non-segmented, around 3.0kb in length. genusstructuresymmetrycapsidgenomic arrangementgenomic segmentation becurtovirustwinned icosahedralincomplete t=1non-envelopedcircularmonopartite life cycle viral replication is nuclear. entry into the host cell is achieved by penetration into the host cell. replication follows the ssdna rolling circle model. dna-templated transcription is the method of transcription. the virus exits the host cell by nuclear pore export, and tubule-guided viral movement. dicotyledonous plants serve as the natural host. genushost detailstissue tropismentry detailsrelease detailsreplication siteassembly sitetransmission becurtovirusspinachphloem; sieve; phloem-limitedviral movement; mechanical inoculationbuddingnucleusnucleusviral movement; contact