*Study of bacteria is called bacteriology.
*Bacteria was discovered by A.V leeuwenhook.
*The term bacteria was coined by Erhenbergi.
*Germ theory of disease was given by Robert Koch.
*Smallest bacteria :-Dialister pneumosintes.
*Largest bacteria:-Beggiatoa
*Bacterial chromosome is also known as genome/genophore/ bacterial chromosome.
*DNA in bacteria is double helical and circular.
*Plasmid is broadly used in genetic engineering.
*Conjugation was firstly discovered in E-Coli by lederberg and Tatum.
*transformation :genetic recombination occurs without contact. this process was discovered by graffith in diplococcus in pneumonae.
*Iron bacteria:- ferrobacillus
*Hydrogen bacteria:- hydrogenomonas
*Halophiles:-salt loving.
*Mycoplasma is known as connecting link between bacteria and virus.