In this article we will discuss about the relationship between virus and vector. 1. Stylet-Borne Viruses: Stylet is a long, slender, hollow feeding organ of insects and nematodes and the stylet-borne viruses arc the viruses borne on stylet of their vectors. Majority of the stylet-borne viruses are transmitted by aphids. The acquisition period of these viruses by aphids varies from [...]
Camera Lucida, (Fig. 15.5), when attached with a compound microscope, helps drawing microscope images of objects on paper. It works on simple optical principle reflecting beam of light through a prism and a plane mirror. The microscopic image of the object is reflected by the prism on to the plane mirror and there from the image is reflected on to [...]
In this article we will discuss about the two important parameters for determining the effectiveness of antimicrobial chemical agents i.e. Minimal Inhibitory Concentration (MIC) and Minimal Lethal Concentration (MLC). Minimal inhibitory concentration (MIC) is the lowest concentration of a chemical agent or drug that inhibits growth of a particular microorganism to the extent that there is no visible growth (turbidity) [...]