Dennis Thomas
BIOLOGY
BIOLOGY_260_QUIZ
Partitiviridae is a house of double-stranded RNA viruses .plant , fungi , and protozoa service
as innate horde .It has been suggested that they can also taint bacterium .The name comes
from the Latin partitius , which means divided , and refers to the segmented genome of
partitiviruses .There are five genera and 60 species in the family , 15 of which are
unassigned to a genus .== Structure == virus in the family Partitiviridae are non-enveloped
with icosahedral geometries and T=1 symmetry .The diameter of partitiviruses is around
25–43 nm .== Genome == Partitiviruses have double-stranded RNA genomes divided into
two genomic segments , and there may be additional subgenomic segments .The two
genome segments are packaged in separate computer virus corpuscle .They code for two
sort out proteins .The first segment codes for the RNA-dependent RNA polymerase
( RdRp ) , and the minute segment codes for the coating protein .The section are around
1.4–3.0 kbp in length , while the add genome length is around 3.0–4.8 kbp .== biography Hz
== Viral replication is cytoplasmic .entering into the legion cell is achieved by penetration
into the host cell .reverberation follows the double-stranded ribonucleic acid virus
replication role model .Double-stranded RNA virus arrangement is the method of written
text .The virus exits the host cell by cell-to-cell movement .fungus kingdom and works serve
as the natural host .Cryspoviruses infect apicomplexian protozoa of the genus
Cryptosporidium , while virus of the other genera infect plants and fungi .It has been
suggested that they can also taint bacterium .== Phylogenetics == Based on the RNA
polymerase gene this group can be divided into four clades ( I-IV ) .Four isolates from
creature and protozoan form a one-fifth clade .Clades I–IV consist of mixtures of
partitivirus-like sequences from plants and fungi .== Taxonomy == There are five
recognized genera within the Partitiviridae family .There are an additional fifteen species in
the household unassigned to a genus : == denotation == == External golf links == ICTV
Online report card : Partitivirdae Viralzone : Partitiviridae
