Poxviruses of Insects (Poxviridae)
Encyclopedia of Virology: Volume 1-5, Fourth Edition, Elsevier, ss.858-866, 2020
- Yayın Türü: Kitapta Bölüm / Araştırma Kitabı
- Basım Tarihi: 2020
- Doi Numarası: 10.1016/b978-0-12-814515-9.00021-7
- Yayınevi: Elsevier
- Sayfa Sayıları: ss.858-866
- Anahtar Kelimeler: AAEV, ACEV, AMEV, Amsacta moorei entomopoxviruses, Anacridium aegyptium entomopoxvirus, Anomala cuprea entomopoxvirus, Calliptamus italicus entomopoxvirus, CBEV, CFEV, Choristoneura biennis entomopoxvirus, Choristoneura fumiferana entomopoxvirus, Choristoneura rosaceana entomopoxvirus, CIEV, CREV, Gomphocerus sibiricus entomopoxvirus, GSEV, HAVE, Heliothis armigera entomopoxvirus, Melanoplus sanguinipes entomopoxvirus, Melolontha melolontha entomopoxvirus, MMEV, MSEV, OAEV, Oedaleus asiaticus entomopoxvirus
- Karadeniz Teknik Üniversitesi Adresli: Evet
Özet
Entomopoxvirinae, a subfamily of Poxviridae encompasses viruses of insects with structural and genomic features as well as a replicative cycle similar to poxviruses of chordates. Entomopoxviruses (EPVs) are distinguished by the synthesis of an occlusion body, spheroid, into which mature virions are occluded late in the infection cycle. To date, seven EPV genomes have been sequenced with sizes ranging from 228.1 to 307.7 kb, and as in other poxviruses, the genome contains a conserved central region and variable termini that also contain the typical inverted terminal repeats. EPVs initiate infection in larval midgut cells followed by haemocytes that spread the virus to other permissive tissues, primarily fat tissues. This is in contrast to baculoviruses (BVs) that use the trachea as a conduit to disseminate infection. Even though EPVs and BVs are from varied ancestral origins, they occupy very similar ecological niches. It was shown that there was gene acquisition convergence between both group of viruses. To date, EPVs have not been used as biological control agents, primarily because of the long time it takes to kill the larval host.