Our sensitivity instruments rarely ever go down, but when they do our lab uses Kirby-Bauer testing to perform antimicrobial susceptibility testing in our laboratory. This testing involves placing antibiotic-infused discs on a standardized inoculum of bacteria spread in a lawn onto a Mueller Hint... Read More
Microsporum gypseum microconidia. Unstained interference phase microscope. (1000X) Read More
We hope you've started plating your dishes! Here are some of the 2016 entries thus far. Show us your creative streaking! For contest entry rules visit: www.microbeworl.org/art. Submissions close May 6, 2016 11:59 P.M.EST.Entries pictured from left to right: Symbol of ASM, A Once in a Lifetime Ki... Read More
This colorized negative stained transmission electron micrograph (TEM), captured by F.A. Murphy in 1968, depicts a Marburg virus virion, which had been grown in an environment of tissue culture cells. Marburg hemorrhagic fever is a rare, severe type of hemorrhagic fever which affects both humans... Read More
Saturn’s moon Titan is wrapped in a thick, hazy atmosphere whose chemistry may mirror conditions on Earth before life emerged here some 4 billion years ago. In October Sarah Hörst reported that the resemblance is more than superficial. She simulated Titan’s haze in the lab and found it naturally... Read More
Sammy Salmonella was created on a Muller Hinton Agar using three different isolates of Pseudomonas aeruginosa and Staphylococcus aureus for the outline. Pseudomonas aeruginosa is the only species of Pseudomonas that will produce pyocyanin, which is what creates Sammy’s green color. These bacte... Read More
Achnanthes longipes (a diatom, Bacillariophyta) (1000x)
Nikon Small World 2012 PHOTOMICROGRAPHY COMPETITION, IMAGE OF DISTINCTION, Dr. Victor Chepurnov, De Water Architect, Ghent, Belgium Read More
Please help me! I am planning to identify this microorganism by API but I can not identify the shape (rod or cocci). This microorganism has positive oxidase. Its colony is red, irregular, flat.
Please teach me. Thanks so much! Nhu Thuy from Vietnam
This cutely radish photo of the colony of Aspergillus niger was taken by a digital camera. Before that Aspergillus niger was grown on SDA (Saboraud Dextrose Agar) media for the research purpose of testing antifungal activity of Scallop Powder(SP). SP ,a natural source obtained from Bivalves, can... Read More
Serratia marcesens is a Gram-negative, rod-shaped bacterium that is commonly found in soil, water, on plants and in animals and thrives in damp conditions. This organism is well known for its production of the blood red pigment, prodigiosin. Production of prodigiosin can be influenced by several... Read More
Throat swab of (5) years old child from emergency department for culture and sensitivity clinical summary scarlet fever.
Streptococcus pyogenes, or Group A Streptococcus, is a spherical, Gram-positive bacterium. S. pyogenes displays streptococcal group A antigen on its cell wall and typic... Read More
Scientists uncover a port of liver entry for malaria parasites in a report published in The Journal of Experimental Medicine. If these results hold up in humans, drugs that target this entry protein might help prevent the spread of disease. Read More
Pictured here are blue colonies of Methicillin-resistant Staphylococcus aureus (MRSA) growing on Remel Spectra MRSA medium. Spectra media contains a chromogen that yields a blue color as a result of phosphatase activity. The phosphatase enzyme is present in many staphylococci, including Staphylo... Read More
This study done at department of Clinical Microbiology, TU Teaching Hospital , Kathamandu, Nepal.
Clinical specimen: Sputum
Media: Muller Hinton Agar
Incubation condition: at 37'c for 24hrs.
Isolate: Pseudomonas aerugionsa
Pic: Symbol of ASM.
Pseudomonas aeruginosa is a Gram-negative rod... Read More
Shortly after a baby’s birth, bacteria aren’t the only invaders to colonize the gut. Viruses move in, too, according to new research. Read More
Researchers at Washington University School of Medicine in St. Louis have received a $7 million grant from the Bill & Melinda Gates Foundation aimed at eliminating river blindness and elephantiasis, two neglected tropical diseases that annually sicken millions. Read More
When the Ebola virus outbreak erupted in West Africa in 2014, children infected with the virus -- particularly those under age 5 -- faced overwhelming challenges. Not only was there a high death rate among young children infected with the disease, they often were isolated from their families, le... Read More
Three organisms inoculated onto blood agar, straight line inoculation, to demonstrate hemolysis. From top to bottom:
Streptococcus pyogenes: beta, complete lysis of red blood cells, clear area around colony growth.
Streptococcus bovis: alpha, incomplete lysis of red blood cells, green area ... Read More
Scientists at Northeastern University have taken a major step towards being able to grow previously uncultivable bacteria in the lab, the potential key to developing a new generation of highly effective antibiotics.
Examining bacterial communities enveloping particles of sand, the Northeaster... Read More