Caption: E. coli - Gram-negative, facultatively anaerobic, rod prokaryote; strains undergoing conjugation via a pilus. Bacterial conjugation is the ability to transfer DNA between strains of bacteria (via a pilus). It allows a new mutation to spread through an existing population. It is believed that this process led to the spread of toxin synthesis from Shigella to E. coli (O157:H7). E. coli can cause urinary tract infections, traveler's diarrhea, nosocomial infections, meningitis, peritonitis, mastitis, septicemia and gram-negative pneumonia.. It causes a variety of skin and wound infections such as scalded skin syndrome, scarlet fever, erysipelas and impetigo.
Magnification*: x3,655
Type: TEM
Copyright 2007 Dennis Kunkel Microscopy, Inc.
Keywords: 03.01.07,bacilli,bacillus,bacteria,bacterial pathogen,bacterium,conjugation,erysipelas,Escherichia coli,facultatively anaerobic,fimbria,fimbriae,Gram-negative,Gram negative,human disease,human microbiota,impetigo,pili,prokaryote,rod,scalded skin syndrome,scarlet fever,skin infection,wound infection,E. coli,nosocomial infection,urinary tract infection,UTI,TEM,mastitis,meningitis,peritonitis,pneumonia,septicemia,bacteria conjugation,bacterial conjugation,DNA transfer,mutation,pilus,sex pili,sex pilus,gene transfer,71223C