User:Shayinik/sandbox

Host

Cyanophages' host range is very complex and plays an important role in controlling cyanobacteria population. They have hosts in more than one genus and they can be classified into three major groups based on their taxonomy of their host organism. Lyngbya, Plectonema and Phormidium (LPP) Cyanophage

The first group is LPP, which belongs to the cyanopodoviruses. They carry short non-contractile tails and cause lysis of several species within three genera of cyanobacteria: Lyngbya, Plectonema and Phormidium. Cyanophages in this group are easy to isolate from the environment. Anabaena (A), Nostoc (N), Anabaena and Nostoc (AN) and Nostoc and Plectonema (NP) Cyanophage

A, AN, N and NP is the second group of the cyanophage host range. They play an important role in infecting and causing lysis of Nostoc, Anabaena and Plectonema. The A-group of the virus lysis and infects Anabaena species. Similarly, AN group of host range infects both Anabaena and Nostoc species, whereas the N group of viruses infect the Nostoc species only. Lastly, the cyanobacterial isolates of Nostoc and Plectonema species is infected by the NP group of viruses. These cyanobacterial isolates closely relate to the taxonomic group of Nostoc. They all have broad host range and mutations are noticeable in these group of viruses.

Anacystis nidulans and Synechococcus cedrorum (AS), Synechococcus elongatus and Microcystis aeruginosa (SM) Cyanophage

AS and SM groups are the third group of cyanophage host range. Unicellular cyanobacteria are infected by these host range group. The myovirus AS-1 infects Anacystis nidulans, Synechococcus cedrorum, Synechococcus elongatus and Microcystis aeruginosa. Similarly, Synechococcus elongatus and Microcystis aeruginosa are infected by the podovirus SM-1.