| Picovirinae | |
|---|---|
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Duplodnaviria |
| Kingdom: | Heunggongvirae |
| Phylum: | Uroviricota |
| Class: | Caudoviricetes |
| Order: | Caudovirales |
| Family: | Salasmaviridae |
| Subfamily: | Picovirinae |
| Synonyms[1] | |
| |
Picovirinae is a subfamily of viruses in the order Caudovirales, in the family Salasmaviridae. Bacteria serve as natural hosts. There are two genera and seven species in this subfamily.[2][3]
Taxonomy[edit]
The following genera and species are recognized:[3]
Structure[edit]
Viruses in Picovirinae are non-enveloped, with icosahedral or prolate heads of about 50–55 nm in diameter, and short tails. Genomes are linear, double stranded DNA, and are relatively small (between 16–20 kbp)-hence the term pico-virinae. Picoviruses package linear, monomeric genomes with a terminal protein covalently attached to each end.[2]
Life cycle[edit]
Viral replication is cytoplasmic. Entry into the host cell is achieved by adsorption into the host cell. Replication follows the DNA strand displacement model. DNA-templated transcription is the method of transcription. Bacteria serve as the natural host. Transmission routes are passive diffusion.[2]
References[edit]
- ^ Lavigne, R.; Seto, D.; Mahadevan, P.; Ackermann, H. W.; Kropinki, A. M. (2008). "Unifying classical and molecular taxonomic classification: analysis of the Podoviridae using BLASTP-based tools". Research in Microbiology. 159 (5): 406–14. doi:10.1016/j.resmic.2008.03.005. PMID 18555669.
- ^ a b c "Viral Zone". ExPASy. Retrieved 1 July 2015.
- ^ a b "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 12 May 2021.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction