name: mohit kumar singh
class : bba.mba(dual degree)
ALL ABOUT BRINJALS
* Cultivated on 510,000 hact.
* 82,00,000 metric tons.
* Mainly cultivated on small family farms.
* Source of cash income for resource-poor farmers.
Grown as Kharif and Rabi crop
What is Bt brinjal?
Bt brinjal is genetically modified variety of brinjal which gives more resistant to Brinjal plant against insects. In technical terms Bt Brinjal is a transgenic brinjal created by inserting a gene [Cry 1Ac] from the soil bacterium Bacillus thuringiensis (and hence the name Bt) into Brinjal. The insertion of the gene into the Brinjal cell in young cotyledons has been done through an Agro bacterium-mediated vector, along with other genes like promoters, markers etc. This genetic insertion is said to give the Brinjal plant resistance against lepidopteron insects. It is reported that upon ingestion of the Bt toxin by the insect, there would be disruption of digestive processes, ultimately resulting in the death of the insect. HOW ARE THEY PREPARED
Genetic modification involves the insertion or deletion of genes. In the process of Cisgenesis genes are artificially transferred between organisms that could be conventionally bred. In the process of Transgenesis genes from a different species are inserted, which is a form of horizontal gene transfer. In nature this can occur when exogenous DNA penetrates the cell membrane for any reason. To do this artificially may require attaching the genes to a virus or just physically inserting the extra DNA into the nucleus of the intended host with a very small syringe, or with very small particles fired from a gene gun.
Controversy behind bt brinjal
First let us undestand the controversy and why people are opposing it? Several studies on Bt crops in particular and GM crops in general show that there are many...