Bacillus amyloliquefaciens

Bacillus amyloliquefaciens is a species of bacterium in the genus Bacillus that is the source of the BamHI restriction enzyme. It also synthesizes a natural antibiotic protein barnase, a widely studied ribonuclease that forms a famously tight complex with its intracellular inhibitor barstar, and plantazolicin, an antibiotic with selective activity against Bacillus anthracis.

It is used in agriculture, aquaculture, and hydroponics to fight root pathogens such as Ralstonia solanacearum, Pythium, Rhizoctonia solani, Alternaria tenuissima and Fusarium as well improve root tolerance to salt stress. They are considered a growth-promoting rhizobacteria and have the ability to quickly colonize roots.