Pictured is a culture of Mycobacterium tuberculosis growing colonies in the distinctive "serpentine cord" form seen in many strains of M. tuberculosis. These cords are made up of chains of cells that make chains due to a cell wall factor of MTB.
The cell wall structure of Mycobacterium is a m... Read More
This thin-section transmission electron micrograph (TEM) revealed the ultrastructural appearance of a single virus particle, or “virion”, of measles virus. The measles virus is a paramyxovirus, of the genus Morbillivirus. It is 100-200 nm in diameter, with a core of single-stranded RNA, and is c... Read More
Microscopic view of gram-positive Listeria monocytogenes (rods) (approx. original X 1,000). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More
This colorized scanning electron micrograph (SEM) depicted a flagellated Vibrio vulnificus bacterium; Mag. 26367x.
Vibrio vulnificus is a bacterium in the same family as those that cause cholera. It normally lives in warm seawater and is part of a group of vibrios that are called "halophilic"... Read More
These bacteria induce the assembly of actin-rich tails in the host cell cytoplasm, which enable them to move rapidly. Motile bacteria spread from cell to cell by forming membrane-enclosed protrusions that are engulfed by neighboring cells. (B) Fluorescence micrograph of the bacteria moving in a ... Read More
This scanning electron micrograph shows mycoplasma (colorized pink), a genus of bacteria that lack a cell wall. Without a cell wall they are unaffected by many common antibiotics, such as penicillin, or other beta-lactam antibiotics that work by targeting cell wall synthesis. These mycoplasma ar... Read More
Recently recognized outbreaks, or clusters of MRSA in community settings have been associated with strains that have some unique microbiologic and genetic properties, compared with the traditional hospital-based MRSA strains, which suggests some biologic properties, e.g., virulence factors like ... Read More
This is a photomicrograph of Fusobacterium russii cultured in a thioglycollate medium for 48 hours.
Like the genus Bacteroides, Fusobacterium are anaerobic, gram-negative bacteria that are normal inhabitors of the intestine. Fusobacterium spp. are associated with pleuropulmonary and oral infe... Read More
Poisons are unleashed when colonies of bacteria get too close, creating a toxic no-man's land in between.
Research by Eshel Ben-Jacob of the University of California, San Diego's, Center for Theoretical Biological Physics, Ben-Jacob of Tel Aviv University, Avraham Be'er of the University of T... Read More
clostridium perfringens lecithinase activity 6x Read More
clostridium sporogenes - sporoangia and sports, crystal violet (1000x) Read More
Over-probing airport security scans? Nope. Soft porn from the 22nd Century? Definitely not. These beautiful images of the human body are part of a new exhibition at the Royal Institution. Each was taken using the light emitted by the bioluminescent bacteria Photobacterium phosphorem. Artist Anne... Read More
This digitally-colorized scanning electron micrograph (SEM) depicted large numbers of Gram-positive Enterococcus faecalis sp. bacteria.
“Enterococci, leading causes of nosocomial bacteremia, surgical wound infection, and urinary tract infection, are becoming resistant to many and sometimes al... Read More