Skip to main content

Bt Toxin

Bt Crop Containing Bt Toxin Gene

Bt refers to Bacillus thuringiensis i.e. Bt crop contains the amount of toxin obtained from the above bacterium or rather Bt toxin is formed in these crops which is active only when the crop is eaten by insects. In this way, after eating the crop, this toxin becomes active by going into the intestine of the insect and the insect dies.


Pongal : A South Indian Festival

Now the question arises that how did this poison reach inside the plants. Bt bacteria store many toxin proteins inside their spores and this toxin protein is made by the Bt toxin gene present inside the bacterium, that is, this toxin is produced by the Bt toxin gene.

By biotechnology, this toxin gene is isolated from the bacterium and put in the gene of crop plants, due to which this toxin starts forming inside the crop plants as well.

Exogenous Forces - Weathering and Erosion

When Bt toxin is in the cell of bacteria or crop plants, then it is in dormant state and at this time it is called pro-toxin. This poison does not cause any harm to the plants. But after eating plants by insects, when the toxin reaches the alimentary canal of insects, then it becomes active by coming in contact with alkaline medium present in the alimentary canal. In this way, it becomes active and destroys the cell by penetrating the epithelial wall of the alimentary canal, due to which the insect dies and the crop is not harmed. Thus the crop did not have to be sprayed with any insecticide to protect it from pests.

At present, Bt plants are being grown in an area of more than 65 million hectares all over the world. Bt cotton and Bt maize containing Bt toxin genes were first planted in 1996.

Therefore, crops containing Bt toxin gene are called Bt crops. Like ~ Bt – Cotton, Bt – Maize, Bt – Paddy, Bt – Tomato, Bt – Potato, Bt – Brinjal, Bt – Tobacco etc.

Reproduction in Organisms - Vegetative Reproduction - Artificial Vegetative Reproduction and Micro-Propagation

Comments

Popular posts from this blog

Evolution of the Indian Constitution : Historical Background (Part - 2)

Evolution of the Indian Constitution : Historical Background (Part - 2) We will understand the material related to the development of the Indian Constitution in the following four parts, whose links are as follows – Evolution of the Indian Constitution : Historical Background (Part - 1) Evolution of the Indian Constitution : Historical Background (Part - 2) Evolution of the Indian Constitution : Historical Background (Part - 3) Evolution of the Indian Constitution : Historical Background (Part - 4) We can divide the development of the Indian Constitution mainly into two categories – Acts passed under the British East India Company (1773 – 1853) Regulating Act 1773 Act of Settlement 1781 Act of 1786 Pitt's India Act 1784 Charter Act, 1793 Charter Act, 1813 Charter Act, 1833 Charter Act, 1853 Acts passed under the British Crown (1857 – 1947 ) Government of India Act, 1858 Indian Councils Act, 1861 Act of 1873  Imperial Titles Act, 1876 Indian Councils Act, 1892 Indian Councils Act, 1...

Indian Martial Art - Part 4

Indian Martial Art The  literal meaning of 'martial art' is - 'art related to waging war'.  As we all know,  India is a country of traditions and cultures . Indian martial arts or martial arts are also one of the many variations of India. In ancient times, these martial arts played an important role in defeating the opposing side and establishing their supremacy over the dynasties and primitive tribes, but in the present context, if we look at these martial arts, they are  used generally in Physical health benefits, for self-defense, for religious rites and in the film world. These martial arts are mainly related to dance, yoga and performance arts. Different Branches and Sub-Branches of Science and Their Fields of Study Different Types of Indian Martial Arts Different types of martial arts are prevalent in different states and regions of India, some of which we will see in this article. We will see the details of the remaining others in the next article under differ...

Major Facts Related to Lakes of India And The World

Major Facts Related to Lakes The major facts related to lakes are as follows , which can be categeorise into Lakes of the World and The lakes of the India. These are as follows -  Albinism : Genetic Mendelian Abnormality Lakes of the World Deepest lake – Lake Baikal (1750 m.) The lowest depth lake – Lake Chad of Africa (3 m.). Largest lake – Caspian Sea, followed by Lake Tanganyika. Longest lake – Lake Tanganyika (660 km), Fresh water lake. Largest fresh water lake – Lake Superior (US) | Highest navigable lake – Titicaca (located on the border of Peru and Bolivia) Highest lake – Tisso Sikru (located in the plateau of Tibet). Largest caldera lake – Tobajil (Indonesia) | Most salinity lakes – Turkey's Van Lake (330%), Jordan's Dead Sea (238%), America's Great Salt Lake (220%). Edicts and Architecture of Mauryan Lakes of India The lakes located in the deltaic regions of the river Ganges are called Bhils. The lagoon lake located on the west coast of India is called Kayal. Bemba...