Different view of an unknown airborne environmental isolate on Bile Esculin Agar (BEA) exhibiting a single circular colony. White hyphal growth with no spore formation. Clear to brownish exudate can be seen throughout the colony. This sample grew at refrigerated temperatures for several months.... Read More
Phenotypic test for detection of AmpC β-lactamases.
boronic acid is inhibitor of ampC β-lactamases. result: if zone of inhibition in Cefoxitin(FOX)+Boronic acid(BA) > Cefoxitin(FOX)=5MM.it indicates amp c producer. media :MHA organism: klebisella pneumoniae our resarch work on AmpC β-lactama... Read More
Scanning electron micrograph of Borrelia hermsii, the causative agent of relapsing fever, interacting with red blood cells.
Credit: National Institute of Allergy and Infectious Diseases (NIAID) Read More
On the first day of Micro class instructors have students do an environmental swab. This sample was subcultured from a student who did the bottom of their shoe. The organism, possible Bacillus sp., was tough to scrap off the agar so subculture was done by taking a small chunk of agar containi... Read More
In this post, I meet up with six of my former undergraduate students at the General Meeting of the American Society of Microbiology in Boston last May. We had a great dinner where we could catch up on challenges and cheer each other on. I am very proud of the great students in this post, who a... Read More
Image of antifungal activity of Lactobacillus isolates against Geotrichum spp., Aspergillus spp. and Penicillum spp.. While Reviewing my results I could see an interesting thing that it resembles as like aliens face. Read More
Pure culture of Pseudomonas sp. isolated from rain collected at Virginia Tech, USA.
Incubation Conditions: 48 hours at 28°C + 24h at 20°C on EMB Agar
It can be distinguished two types of colonies following a gradient of culture density.
This filamentous fungus was isolated from soil of a petroleum hydrocarbon polluted ship breaking yard. It can degrade some linear petroleum hydrocarbons, like kerosene, diesel and octane. Read More
Monolayer biofilms of the Clostridium thermocellum bacterium (in situ and in vivo).
Credit: Mr. Alexandru Dumitrache
University of Toronto
Olympus Bioscapes 2013 Honorable Mention. Read More
Unknown fungal contaminant found on TSA. TSA plate was incubated at 4 degrees for two months after contaminant was discovered. Read More
Pseudomonas aeruginosa, Escherichia coli and Serratia marcescens were inoculated into gelatin agar using the stab method and incubated for 1 week at 37 degree’s C. If the organism has gelatinase then it can break down the gelatin (protein) into polypeptides and then amino acids which can then ... Read More
Transmission electron micrograph of novel coronavirus particles, colorized in yellow.
Shiga toxin producing Escherichia coli grown on EMB agar. The organism was isolated from smallholdings' cattle, Bangladesh. Read More
This is the of the Department of Microbiology and Molecular Genetics at UT Health Science Center Houston. It features commonly found in research laboratories supplies and equipment. Read More
Life is pretty interesting, and at the microscopic scale, it can also be beautiful, strange, intriguing, frightening and gross. The winning photos and videos from this year’s Olympus BioScapes competition span the whole range.
From rat brains to butter daisies to weevils and barnacle appendag... Read More
This study done at department of Clinical Microbiology, TU Teaching Hospital , Kathamandu, Nepal.
Media: Muller Hinton Agar
Incubation condition: at 37'c for 24hrs,
then reincubate at RT for 24hrs for further pigment production.
Isolate: Serratia marc... Read More
In this short blog post, I "write" on Petri dishes with bioluminescent bacteria to create words and poems in "living light." I also write a haiku to quorum sensing in the same style! Read More
An unknown airborne environmental isolate on Mueller-Hinton agar exhibiting a single circular colony. White hyphal growth on the outer edges of the mold colony, where spores have not yet developed, surrounding the green and yellow grainy spore formation in the center of the colony with exudate ... Read More
Colonies of candida species:
Media: HiCrome Candida Differential Agar
principle: Perry and Miller (1) reported that Candida albicans produces an enzyme b -N-acetyl- galactosaminidase and according to
Rousselle et al (2) incorporation of chromogenic or fluorogenic hexosaminidase substrates... Read More
Sawadaea sp. (Erysiphaceae, Erysiphales) is a powdery mildew that infects Acer sp. (Maple). Infected maple leaves, usually on the adaxial surface, are covered with dense mycelia (of white to grey powder colour) with scattered chasmothecia (fruiting body, brown to dark-brown ball-like structure).... Read More