What is Monopartite genome?

What is Monopartite genome?

Monopartite refers to the class of genome that is presented in the genome of the virus. As opposed to multipartite, viruses composed of monopartite genomes have a single molecule of nucleic acid. Most dsDNA viruses are monopartite.

What are problems associated with Geminiviruses?

Geminiviruses are the cause of devastating plant diseases, particularly in the tropics and sub-tropics. Beet curly top, cassava mosaic and maize streak diseases, recognised as serious threats to crop production about a century ago, continue to be serious problems of world agriculture.

Which plant virus is Gemini virus?

Geminiviruses, which are circular single-stranded DNA (ssDNA) plant viruses, are divided into four different genera (Curtovirus, Mastrevirus, Topocuvirus, and Begomovirus). All geminiviruses are transmitted by insects; the most devastating begomoviruses are transmitted by whiteflies (Bemisia tabaci).

What are the characteristics of a satellite virus?

Satellite viruses are particles that contain nucleic acid genomes encoding a structural protein that encapsidates the satellite genome. Satellite RNAs do not encode capsid protein, but are packaged by a protein encoded in the helper virus genome.

How does a bacteriophage attach to a host cell?

To infect bacteria, most bacteriophages employ a ‘tail’ that stabs and pierces the bacterium’s membrane to allow the virus’s genetic material to pass through. The most sophisticated tails consist of a contractile sheath surrounding a tube akin to a stretched coil spring at the nanoscale.

Can plant viruses infect humans?

It is currently accepted that a strict separation exists between plant and vertebrate viruses regarding their host range and pathogenicity, and plant viruses are believed to infect only plants. Accordingly, plant viruses are not considered to present potential pathogenicity to humans and other vertebrates.

Do Viroids have a protein coat?

Viroids are the smallest infectious pathogens known, comprised solely of a short circular RNA without protein coats.

What is a bipartite genome?

Many begomoviruses have a bipartite genome: this means that the genome is segmented into two segments (referred to as DNA A and DNA B) that are packaged into separate particles.

What is Monopartite virus?

Monopartite viruses have a single nucleic acid molecule protected in a shell made of proteins (and sometimes also lipids) forming the virus particle. The genome of segmented viruses is divided into two or more nucleic acid segments that are all encapsidated together in a single virus particle.

What is the function of multipartite virus?

A multipartite virus infects computer systems multiple times and at different times. In order for it to be eradicated, the entire virus must be removed from the system. A multipartite virus is also known as a hybrid virus.