Question

Write the scientific name of the bacteria that produce Bt. Toxin.

Answer 1

Hint: Bacillus thuringiensis (Bt) is a bacteria that produces Bt toxin

Complete answer: Bacillus thuringiensis (Bt) is a Gram-positive, spore-forming bacterium that synthesizes parasporal crystalline inclusions containing Cry and Cyt proteins.
1. Bt also synthesizes insecticidal proteins during the vegetative growth phase, which are subsequently secreted into the growth medium.
2. Bt crystal and secreted soluble toxins are highly specific for their hosts and have gained worldwide importance as an alternative to chemical insecticides.
Some of these isolates exhibit novel and unexpected toxic activities against organisms other than insects, suggesting a pluripotential nature of some toxins.
3. The naming of a protein as a Cry toxin derives from the fact that it forms a parasporal crystal. As a result, Cry toxins do not belong to a single, homologous family of proteins but, instead, include a number of unrelated lineages.
4. The use of microorganisms has assumed a prominent position among the options that seek to control insect pests without the use of chemicals and with high specific toxicity applied in Agroecosystem.
5. The efficiency of the use of this entomopathogenic is characterized by the production, during the sporulation, of crystalline protein inclusions which are toxic to various insect groups. In some cultures, the population of secondary arthropods, which are not the target of Bt application, may be influenced by the implementation of these insecticidal properties.

Note: (Bt) is a Gram-positive, spore-forming bacterium that synthesizes an extraordinary diversity of insecticidal proteins and has demonstrated its potential and safety as a biocontrol agent over more than five decades. There is now an extensive literature on a wide range of Bt-related topics from its natural ecology to its mode of action.