Proteobakteriler

Under a high magnification of 6500X, this scanning electron micrograph (SEM) depicted a large grouping of Gram-negative Legionella pneumophila bacteria. Please see PHIL 11092 through 11152 for additional SEMs of these organisms, and specifically PHIL 11093 for a colorized version of this image.You’ll note that a number of these bacteria seem to display an elongated-rod morphology. L. pneumophila are known to most frequently exhibit this configuration when grown in broth, however, they can also elongate when plate-grown cells age, as it was in this case, especially when they’ve been refrigerated. The usual L. pneumophila morphology consists of stout, fat bacilli, which is the case for the vast majority of the organisms depicted here.Created: 2009

This thin section transmission electron micrograph (TEM) depicted a Gram-negative Legionella pneumophila bacterium, which was cultured in an embryonated hen’s egg; Magnified approximately 119,500x.Created: 2005

Transmission electron micrograph of Legionella pneumophila.Created:

Legionella pneumophila multiplying inside a cultured human lung fibroblast.Created: 1979

This scanning electron micrograph (SEM) revealed some of the ultrastructural morphologic features of a Klebsiella pneumoniae bacterium.Created: 2005

This blood agar plate (BAP) grew colonies of Gram-negative, small rod-shaped and facultatively anaerobic Klebsiella pneumoniae bacteria.Created: 1976

This inoculated MacConkey agar culture plate cultivated colonial growth of Gram-negative, small rod-shaped and facultatively anaerobic Klebsiella pneumoniae bacteria.Created: 1976

This photograph depicts the colonial morphology displayed by Shigella boydii bacteria cultivated on a Hektoen enteric (HE) agar surface; colonies of S. boydii bacteria grown on HE agar display a raised, green, and moist appearance.Created: 1976

This photograph depicts the colonial morphology displayed by Gram-negative Shigella boydii bacteria on a blood agar plate (BAP).Created: 1976

This photograph depicts the colonial morphology displayed by Shigella boydii bacteria cultivated on a Hektoen enteric (HE) agar surface; colonies of S. boydii bacteria grown on HE agar display a raised, green, and moist appearance.Created: 1976

Magnified 1125X, this photomicrograph revealed the presence of numerous Gram-negative bacilli, i.e., rod-shaped organisms, Eikenella corrodens, which in part, derives its name from the fact that when this organism is grown on agar medium, it appears to erode the medium. E. corrodens is a facultative anaerobic organism, which means that in the presence of environmental oxygen it creates ATP, but switches to fermentation in oxygen’s absence. As a commensal organism, E. corrodens is normally found in the human mouth and upper airways, and has been found to be the cause of infection in cancer patients, and patients injured through a bite injury.Created: 1972

This colorized scanning electron micrograph (SEM) depicted a flagellated Vibrio vulnificus bacterium; Mag. 26367x.Created: 2005

This Gram-stained micrograph revealed coccoid forms of Campylobacter jejuni acquired from a 72 hour culture using discrete bacterial colonies that had developed upon a brain-heart infusion agar plate with the addition of 7% rabbit blood.Created: 1980

This electron micrograph depicts a 0.1µm polycarbonate membrane filter, which is coated with a C. jejuni bacterial film.Created: 2004

This scanning electron micrograph depicts a number of Gram-negative Campylobacter jejuni bacteria, magnified 9,951x.Created: 2004

This scanning electron micrograph depicts a number of Gram-negative Campylobacter jejuni bacteria, magnified 20,123x.Created: 2004

This scanning electron micrograph depicts a number of Gram-negative Campylobacter jejuni bacteria, magnified 5,637x.Created: 2004

This scanning electron micrograph depicts a number of Gram-negative Campylobacter jejuni bacteria, magnified 11,734x.Created: 2004

This photograph depicts the colonies of Proteus mirabilis bacteria grown on a Xylose Lysine Sodium Deoxycholate (XLD) agar plate.Created: 1976

This SEM depicts a P. mirabilis (ATCC 29906) biofilm growing on PC (polycarbonate) coupons using a CDC biofilm reactor.Created: 2003

This SEM depicts a P. mirabilis (ATCC 29906) biofilm growing on PC (polycarbonate) coupons using a CDC biofilm reactor.Created: 2003

This SEM depicts a P. mirabilis (ATCC 29906) biofilm growing on PC (polycarbonate) coupons using a CDC biofilm reactor.Created: 2003

This SEM depicts a P. mirabilis (ATCC 29906) biofilm growing on PC (polycarbonate) coupons using a CDC biofilm reactor.Created: 2003

This SEM depicts a P. mirabilis (ATCC 29906) biofilm growing on PC (polycarbonate) coupons using a CDC biofilm reactor.Created: 2003