Large TSA plate: yellowish organism is Staph aureus, red organism is Serratia marcescens. Grown for 24 hrs at 37 degrees C. Read More
Serratia marcescens can form brilliant red colonies on LB agar due to the synthesis of the secondary metabolite prodigiosin. In the Microbiology teaching lab, we had students create pigment mutants of S. marcescens and these lovely shades of pink and white were collected for analysis. Read More
Microbiology World is a bi-monthly e-magazine, which publish articles based on Microbiology and related fields of Life Sciences. Microbiology World has been established in 2013 and has been supported by several organizations.
I, editor in chief of this magazine, would be glad... Read More
Strain: Pseudomonas aeruginosa PA14
Medium: M8 minimal medium agar plates
Incubation Conditions: 48 hours at 37°C
Pseudomonas aeruginosa is a gram-negative, rod-shaped and monoflagellated bacterium that has an incredible nutritional versatility. Swarming motility, a flagellum-dependent behavi... Read More
The TWiVers discuss the growing Ebola virus outbreak in West Africa, and an epidemic of respiratory disease in the US caused by enterovirus D68.
British and Finnish scientists have found a way of generating renewable propane using a bacterium widely found in the human intestine and say the finding is a step to commercial production of a fuel that could one day be an alternative to fossil fuel reserves.
"Although we have only produced ... Read More
Organisms grown in Fluid Thioglycollate Media w/out resazurin dye is a reducing media that uses sodium thioglycollate to chemically combine with dissolved oxygen to deplete the oxygen in the media. All organism except for Neisseria sicca were grown for 48 hours at 37 degrees C. Neisseria sicca i... Read More
Microbes can tailor transcriptional responses to diverse environmental challenges despite having streamlined genomes and a limited number of regulators. We present data‐driven models that capture the dynamic interplay of the environment and genome‐encoded regulatory programs of two types of prok... Read More
The Grand Masters of the TWiV discuss Ebola virus transmission, air travel from West Africa, Ebola virus infectivity on surfaces, the Dallas Ebola virus patient, and Ebola virus in dogs.
Hosts: Read More
Scientists at the University at Buffalo are turning to an old class of antibiotics to fight new superbugs resistant to modern medicine.
A $4.4 million grant from the National Institutes of Health will allow UB researchers to develop new dosing regimens for polymyxin antibiotics.
Developed ... Read More
Just in case anyone had lingering doubts about the cause of measles, the German courts have ruled in favor of the evidence indicating that measles is caused by a virus (wasn't aware that was up for debate nowadays...). This ruling also includes that a man who stated he would give 100,000 euros ... Read More
When it comes to infecting humans and animals, bacteria need a helping hand.
Kansas State University biochemists have found the helping hand: groups of tiny protein loops on the surface of cells. These loops are similar to the fingers of a hand, and by observing seven individual loops on the ... Read More
This episode: Being raised with their mother and breastmilk vs. bottle-fed in a nursery significantly affects macaque microbiomes and their immune system profile!
(7.7 MB, 8.4 minutes)
Gram stain done on S. pyogenes showing the characteristic long G+ streptococcus chains. Culture grown on blood agar for 48 hrs at 37 degree’s C. Read More
Like a protective tent over a colony of harmful bacteria, biofilms make the treatment of skin infections especially difficult. Microorganisms protected in a biofilm pose a significant health risk due to their antibiotic resistance and recalcitrance to treatment, and biofilm-protected bacteria ac... Read More
A UNSW-led team of researchers has discovered how algae that survive in very low levels of light are able to switch on and off a weird quantum phenomenon that occurs during photosynthesis.
The function in the algae of this quantum effect, known as coherence, remains a mystery, but it is thoug... Read More
A new study will explore whether living with a dog encourages the growth of positive microorganisms in the human gut—enough to improve physical and mental health in older adults. Read More
I saw this que... Read More
Vincent meets up with Janet Butel and Rick Lloyd at Baylor College of Medicine to talk about their work on polyomaviruses and virus induced stress.
Host: Vincent Racaniello
Guests... Read More
Researchers at Harvard and Yale have used some extreme gene-manipulation tools to engineer safety features into designer organisms.
This work goes far beyond traditional genetic engineering, which involves moving a gene from one organism to another. In this case, they're actually rewriting th... Read More