Archive | Viruses

Comparison between Virusoids and Satellites | Microbiology

Learn the comparison between virusoids and satellites. In 1981 for the first time J.W. Randles and coworkers discovered the virusoids. These are the small circular RNAs which are similar to viroids but they are always linked with larger molecules of the viral RNA. Robertson (1983) have reported that virusoids are essential for replication of the large RNA and, therefore, form [...]

By |2016-11-28T11:04:41+00:00November 28, 2016|Plant Viruses|Comments Off on Comparison between Virusoids and Satellites | Microbiology

Effect of Viruses on Plants | Microbiology

In this article we will discuss about the external and internal symptoms that affect the viruses on plants. Since viruses are the obligate parasites, they impart several external and internal symptoms on host plants. 1. External Symptoms: There is a variety of external symptoms that appear on infected plants. Some of the most common symptoms are described be­low: (i) Mosaic: [...]

By |2016-11-28T11:04:41+00:00November 28, 2016|Plant Viruses|Comments Off on Effect of Viruses on Plants | Microbiology

Replication Cycle of Rabies Viruses | Microbiology

In this article we will discuss about the replication cycle of rabies viruses. The infection process is initiated with adsorption of virus on the host cell. Interaction takes place between spike G protein and specific cell surface receptors. It results in fusion of the rabies virus envelope with the host cell membrane. After adsorption, the virus penetrates the host cell [...]

By |2016-11-28T11:04:40+00:00November 28, 2016|Animal Viruses|Comments Off on Replication Cycle of Rabies Viruses | Microbiology
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