Microbiology Archive

Economic Importance of Bacteria

Economic Importance Of Bacteria: 1.As Biofertilizers: (a) Ammonifying bacteria: Bacillus subtilis, B. mycoides, B. ramosus, etc., act upon the dead animal and plant tissues and decompose their complex organic compounds like proteins into ammonium compounds. They are also known as …

Bacterial Transduction

It is also a┬ámode of bacterial gene transfer, which is mediated by viruses. It is a frequent mode of horizontal gene transfer in nature. Indeed evidence suggests that the number of genes moved by marine viruses from one host cell …

Bacterial Transformation

It is another way, DNA can move between bacteria is through transformation, discovered by Fred Griffith in 1928. Transformation is the uptake by a cell of DNA, either a plasmid or a fragment of linear DNA, from the surroundings and …

Bacterial conjugation

Conjugation, the transfer of DNA by direct cell-to-cell contact, depends on the presence of a conjugative plasmid. ┬áPlasmids are small, double-stranded DNA molecules that can exist independently of host chromosomes. They have their own replication origins, replicate autonomously, and are …