HORTICULTURE

Detailed explanation-1: -Bacillus thuringiensis (Bt) is an agriculturally important bacterial strain having Bt genes which encode for the production of insecticidal proteins in the vegetative stage and during the sporulation phase.

Detailed explanation-2: -The toxin produced by Bacillus thuringiensis (Bt) has been used as an insecticide spray since the 1920s and is commonly used in organic farming. Bt is also the source of the genes used to genetically modify a number of food crops so that they produce the toxin on their own to deter various insect pests.

Detailed explanation-3: -Abstract. Bacillus thuringiensis bacteria produce different insecticidal proteins known as Cry and Cyt toxins. Among them the Cyt toxins represent a special and interesting group of proteins. Cyt toxins are able to affect insect midgut cells but also are able to increase the insecticidal damage of certain Cry toxins.