In this article we will discuss about the translocation and transmission of virus. Translocation of Virus: Viruses move from one cell to the neighbouring plant cell through plasmodesmata. During movement, they multiply in most cells. Initially they infect parenchyma cells where they multiply and then pass in the neighbouring cells. In leaf parenchyma cells, the […]
Translocation and Transmission of Virus
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Replication of Virus: Lytic and Lysogenic Cycle
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In this article we will discuss about the replication of virus by lytic and lysogenic cycle. Replication of Virus by Lytic Cycle: This type of cycle is seen in T-even phages (T2, T4 etc.) which attack Escherichia coli. The lytic cycle consists of five steps (Fig. 2.45): (a) Adsorption, (b) Infection (Fig. 2.44), (c) Synthesis […]
Viruses: Definition, Size, and Types
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In this article we will discuss about:- 1. Definition of Viruses 2. Size of Viruses 3. Shape 4. Classification 5. Types. Definition of Viruses: Virus (L. poison) is a nucleoprotein entity which is able to utilize the synthetic machinery of a living cell of another organism for its multiplication which does not involve growth and […]
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